Latest / Stuff You Should Know / Selects: How Mars Works
Transcript
- 0:00Speaker 1: Hello, friends. Have you ever been to Mars? I haven't.
- 0:04Speaker 1: Do you know why? Because nothing ever happens on Mars.
- 0:10Speaker 1: Did you catch that reference? If you did, then I'm glad,
- 0:13Speaker 1: but I'm not going to spoon feed you and tell
- 0:14Speaker 1: you what it was. This is how Mars works and
- 0:17Speaker 1: it was from April and it is my pick for
- 0:21Speaker 1: the Saturday Select. Please to enjoy Welcome to Stuff You
- 0:31Speaker 1: Should Know, a production of I Heart Radio. Hey, and
- 0:40Speaker 1: welcome to the podcast. I'm Josh Clark, Nur's Charles w
- 0:43Speaker 1: Chuck Bryant, Jerry's over there. We all have um I
- 0:46Speaker 1: boogers because this is an early morning, unusual, early morning
- 0:51Speaker 1: edition of Stuff you Should Know. Welcome to the morning edition.
- 0:54Speaker 1: We should just talk like this. We got on NPR,
- 0:58Speaker 1: we got taken to task and it's nine an email
- 1:00Speaker 1: from a morning talk show TV show host. Did you
- 1:04Speaker 1: see it? Uh? About the Inquisition? Yeah? He's like, way
- 1:08Speaker 1: to release the Inquisition on ash Wednesdays, kind of slapping
- 1:11Speaker 1: the face. So I respond I said, actually it came
- 1:13Speaker 1: out on Fat Tuesday and by sheer coincidence. He's like,
- 1:16Speaker 1: thanks for the reply. I responded to him too. I
- 1:19Speaker 1: was like, man, I wish I was that clever and
- 1:20Speaker 1: said I had no idea. It was like our our
- 1:23Speaker 1: medical marijuana episode being our four utter complete coincidence guaranteed everybody.
- 1:31Speaker 1: I think, over the course of six hundred plus shows,
- 1:33Speaker 1: you're gonna have some weird coincidences like that, you know. Yes,
- 1:37Speaker 1: I certainly didn't know it was ash Wednesday. I didn't
- 1:40Speaker 1: either until I went to the mall yesterday evening and
- 1:42Speaker 1: a third of the people are were walking around with
- 1:45Speaker 1: charcoal crosses on their forehead. Nice. It's like I had
- 1:47Speaker 1: no idea Atlanta had this many Catholics good going there everywhere?
- 1:53Speaker 1: They sure are well, I mean they didn't used to
- 1:55Speaker 1: be got You know, I grew up Baptist here and
- 1:57Speaker 1: I didn't know many Catholics growing up, But Atlanta became
- 2:00Speaker 1: a transplant towns instead, exactly. And I'll tell you about
- 2:03Speaker 1: another transplant chuck, possibly life here on Earth from Mars?
- 2:08Speaker 1: Oh yeah, is this your intro? Have you got breaking this? No?
- 2:13Speaker 1: That was it. But do you remember we did an
- 2:16Speaker 1: episode on UM the origin of life on Earth? Remember?
- 2:21Speaker 1: Oh yeah, yeah? And one of the possibilities that it
- 2:23Speaker 1: was from Mars and one of the um pieces of
- 2:28Speaker 1: evidence of this possibility was the Alan Hills Rock from Antarctica,
- 2:35Speaker 1: a Martian meteorite that was discovered in that was studied
- 2:40Speaker 1: and studied, and they thought in basically, Bill Clinton said,
- 2:44Speaker 1: we found evidence of life on Mars. And then they
- 2:47Speaker 1: studied it again and they were like, maybe not another
- 2:50Speaker 1: studying it again, they're saying, yeah, it's possible. It's very
- 2:54Speaker 1: possible that this four point one billion year old rock
- 2:58Speaker 1: is showing evidence of fosse realized nano bacteria. And this
- 3:02Speaker 1: is all still Bill Clinton saying this. Yeah, it is
- 3:06Speaker 1: underwear at home. He's the authority. He's talking to the
- 3:08Speaker 1: TV again. Nice. Uh, but yeah, we're gonna do how
- 3:13Speaker 1: Mars works. Tom Hanks, this one's for you, big space guy.
- 3:19Speaker 1: Oh yeah, sure, Okay. I didn't know if I was
- 3:21Speaker 1: missing something there, like he did some movie that didn't
- 3:23Speaker 1: know about. No, if I said, Gary Sinise, this one's
- 3:27Speaker 1: for you, that would be a mission to Mars reference.
- 3:29Speaker 1: I did not see that. Mind bogglingly odd and pretty bad. Yeah,
- 3:34Speaker 1: I heard, That's why I didn't see it. That and
- 3:35Speaker 1: Red Planet didn't see either. One of those. Red Planet
- 3:38Speaker 1: I don't know about. Yeah, but that kind of brings
- 3:41Speaker 1: us to a point that we've long been fascinated with
- 3:44Speaker 1: the red planet, going back to you know, War the
- 3:47Speaker 1: World's and early science fiction and Martians and Mars has
- 3:51Speaker 1: just always captivated us because you know, sometimes you can
- 3:55Speaker 1: see it with a telescope and it's not like what's
- 3:59Speaker 1: on the other side of a Venus Venus. Yeah, we
- 4:01Speaker 1: don't know much about Venus, shrouded in mystery. There are
- 4:04Speaker 1: no Venusians that we're afraid will come down here in
- 4:07Speaker 1: attack Us. I think it's Venusians Venetians, which is different
- 4:10Speaker 1: from Venetians, which are people from Venice, which, strangely enough,
- 4:16Speaker 1: Um kind of coincides with the guy named Giovanni Siaparelli.
- 4:21Speaker 1: He might not have been from Venice, but that man
- 4:23Speaker 1: was definitely from Italy. Do you think, yeah, he was.
- 4:27Speaker 1: Can you say his name for everybody, Chuck, who Giovanni Sarelli.
- 4:31Speaker 1: That was good that guy. Man, Have you been practicing
- 4:33Speaker 1: at home? No, I just I've been even a lot
- 4:35Speaker 1: of pasta. That's good stuff, man, So um Schiaparelli in
- 4:40Speaker 1: eighteen seventy seven decided to draw a map of Mars
- 4:45Speaker 1: and his conception of Mars what became the popular conception
- 4:49Speaker 1: if it wasn't already. UM was that Mars was a UM,
- 4:54Speaker 1: a lush planet with civilizations, and he named the regions
- 4:59Speaker 1: of Mars a corps lee like Elysium, which which UM
- 5:05Speaker 1: culture believed that that was Heaven. I don't know, I
- 5:08Speaker 1: can't remember, man, I haven't heard that. We you know,
- 5:11Speaker 1: we've discussed it before, Elysium. I haven't retained that. UM.
- 5:15Speaker 1: Another part was called Utopia Arcadia. Basically, all these different
- 5:19Speaker 1: names for paradise reflected the idea that Mars was a
- 5:24Speaker 1: very similar to Earth, most likely inhabited by intelligent beings
- 5:29Speaker 1: and UM. As proof, uh, Schiaparelli drew canals that he
- 5:35Speaker 1: noticed on the on Mars, which suggested that this advanced
- 5:40Speaker 1: civilization had dug canals to UM route water from the
- 5:45Speaker 1: polar ice caps which are visible here on Earth to
- 5:49Speaker 1: the central locations where their civilizations were get water to
- 5:52Speaker 1: the Martians. Yeah, and this established like what earth links
- 5:55Speaker 1: thought of Mars for a hundred years. Almost about forty
- 6:01Speaker 1: years after that, a US astronomer named Percival lowell Um
- 6:04Speaker 1: wrote a book also about Mars, where he actually talked
- 6:07Speaker 1: about civilizations, and Uh, the problem was he he wasn't
- 6:12Speaker 1: really based on anything, it might as well have been
- 6:14Speaker 1: science fiction, right, And yet they named the Lowell Observatory
- 6:17Speaker 1: after him. He was an astronomer, so it's not like
- 6:21Speaker 1: he was. He wasn't just making stuff up, but he
- 6:23Speaker 1: didn't have like hard evidence. He made a lot of
- 6:24Speaker 1: stuff up. Okay, he well, he interpreted it without any evidence. Yeah,
- 6:30Speaker 1: and then wrote a book and that became the impetus
- 6:32Speaker 1: for Mars based science fiction. Yeah, it really captured folks.
- 6:37Speaker 1: And that's when like I talked about war the World's
- 6:39Speaker 1: and uh, Edgar Rice Burrows the Princess of Mars, and
- 6:43Speaker 1: it's just always been just out there staring down at us. Yeah,
- 6:47Speaker 1: it's speaking of war the World's. It even says it
- 6:50Speaker 1: in this article. It did not cause the national panic
- 6:52Speaker 1: in night. That's a myth. Did you know that? Um?
- 6:57Speaker 1: I don't know. I'm not sure I knew the full stories.
- 7:00Speaker 1: Supposedly when h when um uh who directed Citizen Kane?
- 7:06Speaker 1: When Orson Welles carried out this radio. Yeah, yeah, it's
- 7:09Speaker 1: scared everyone, right, it caused a panic. People were wild
- 7:12Speaker 1: in the streets, committing suicide, like doing all sorts of stuff. No,
- 7:15Speaker 1: it isn't true. Um. Apparently the newspapers got wind of
- 7:20Speaker 1: this rumor and played it up, and um, the reason
- 7:25Speaker 1: they played it up was to prove that radio couldn't
- 7:27Speaker 1: be trusted as a source of news because it was
- 7:29Speaker 1: a big competitor to newspapers at the time. Have you
- 7:31Speaker 1: done a Don't Be Dumb on that? No? Maybe I will?
- 7:36Speaker 1: Can I plug that? Go ahead, Josh? As a web
- 7:39Speaker 1: series called Don't Be Dumb? That is very funny and
- 7:42Speaker 1: uh strange, and you learned stuff. It's like the perfect
- 7:47Speaker 1: one to three punch. Weird funny and you walk away
- 7:50Speaker 1: with some knowledge. Thanks man, And everyone likes it that
- 7:54Speaker 1: watches it, so we just need more people to watch it.
- 7:56Speaker 1: Give me the weird sausage fingers. Steve McQueen, clap, that's
- 8:01Speaker 1: that is weird? Oh the director? Oh yeah, he was
- 8:05Speaker 1: clapping weird, wouldn't he at the Oscars? Apparently he and um,
- 8:09Speaker 1: the screenwriter who won an oscar for that movie, Yeah
- 8:12Speaker 1: for twelve Years of Slave do not like each other
- 8:15Speaker 1: over the writing credit. Oh yeah. The writer walked right
- 8:18Speaker 1: past him, and Steve McQueen didn't even turn to look
- 8:20Speaker 1: at him as he was walking up to get his oscar.
- 8:22Speaker 1: I did kind of notice that Yeah, well, if you
- 8:25Speaker 1: read delisted, he rooted it out and found out that
- 8:27Speaker 1: it was over a writing credit. Is that why he
- 8:30Speaker 1: was clapping weirdly? He was showing his disdain with sausage. Weird. Alright, So, UM,
- 8:37Speaker 1: this weird early fascination with Mars, Like I said, we
- 8:40Speaker 1: didn't have a lot of information other than just sort
- 8:42Speaker 1: of looking at it from Earth. UM. And it wasn't
- 8:45Speaker 1: until the sixties and seventies that we started in many
- 8:49Speaker 1: countries started exploring Mars, but we started sending UM orbiters
- 8:54Speaker 1: to take a closer peak and then eventually orbiters led
- 8:57Speaker 1: to landers and rovers and it's been like kind of
- 9:02Speaker 1: a prime directive of NASA for a while. Yeah, one
- 9:05Speaker 1: of them. And and it was UM. When they scrapped
- 9:08Speaker 1: the Space Shuttle UM program. I remember NASA was saying like,
- 9:12Speaker 1: don't worry everybody, We're gonna go to Mars. We're gonna
- 9:15Speaker 1: focus on Mars. That's why we're not doing the shuttle anymore. UM.
- 9:19Speaker 1: And apparently they are. There was just as recently as
- 9:22Speaker 1: yesterday NASA testified about its budget and UM and they
- 9:27Speaker 1: were saying, well, we've got a really great thing plan.
- 9:30Speaker 1: We're gonna get this asteroid. We're gonna maneuver it with
- 9:33Speaker 1: a robot into lunar orbit so we can go visit
- 9:36Speaker 1: it later. And the senators at this hearing basically said boring,
- 9:41Speaker 1: like yeah, They're like, what's this backup Mars mission listed?
- 9:44Speaker 1: And they're like, oh, well, we're talking about doing a
- 9:46Speaker 1: man fly by a venus and Mars. Sentators are like, Mars, Mars, Mars.
- 9:52Speaker 1: So it looks like NASA is gonna be forced to
- 9:54Speaker 1: go to Mars, whether they like it or not. So
- 9:56Speaker 1: it's still captivating. If it's captivating. The dumb dums and Congress, well,
- 10:00Speaker 1: they even said, like the asteroid mission, that's not gonna
- 10:04Speaker 1: spur the public the public imagination, like going past sending
- 10:08Speaker 1: a person past Mars, that's what you want to do NASA.
- 10:12Speaker 1: And NASA is like, all right, but there's gonna we
- 10:16Speaker 1: could probably mind the asteroid and the senators I went
- 10:19Speaker 1: Mars Mars Mars and they all went to a bar afterward. Yeah, okay, Jim,
- 10:23Speaker 1: you want to go to Mars And he was like
- 10:25Speaker 1: all right, yeah, I guess so. Um alright, so where
- 10:29Speaker 1: should we start here? Um, well, let's start with the
- 10:33Speaker 1: origin of Mars. It seems pretty appropriate. Yeah, it's pretty fascinating.
- 10:37Speaker 1: I love how scientists piece together ancient history of the cosmos,
- 10:42Speaker 1: you know, yeah, without having ever sent a geologist there.
- 10:45Speaker 1: It's all I mean, even before the rovers, it was
- 10:49Speaker 1: basically all just based on photographs and and surmising from those.
- 10:53Speaker 1: Now we've got the Curiosity rover, the third rover up there.
- 10:57Speaker 1: It's still up there, right yeah, yeah, or it doesn't
- 10:59Speaker 1: come home, does it. No, it will, but it's still operational. Yeah. Um.
- 11:03Speaker 1: And they were thinking, I think it was a two
- 11:05Speaker 1: year mission, but it could go longer than that. I
- 11:07Speaker 1: think it's already gone a little longer than that, because
- 11:09Speaker 1: I think it went wasn't really already. I think it
- 11:11Speaker 1: went up in late two thousand eleven. So I think
- 11:14Speaker 1: it's been there a little over two years. Well, good going, Curiosity.
- 11:18Speaker 1: I might be wrong. Um. All right, So there's basically
- 11:21Speaker 1: five things that they surmise happened to four Mars, which
- 11:26Speaker 1: will will list and then get into in more detail. Um.
- 11:30Speaker 1: It initially formed from clumping together of little, tiny objects
- 11:35Speaker 1: until it made a big round planet. It was an
- 11:38Speaker 1: accretion disc. Yeah, like just like Earth, Just like Earth. Uh.
- 11:42Speaker 1: Then there was a lot of meteor bombardment all over
- 11:45Speaker 1: the Solar System, and Mars was of course affected just
- 11:48Speaker 1: like Earth. Just like Earth. In the Moon, the mantle
- 11:51Speaker 1: was very hot and pushed through the crust, lifting up
- 11:54Speaker 1: portions of it. And then there were a couple of
- 11:58Speaker 1: uh they don't know how many, but at least a
- 12:00Speaker 1: couple of periods of lots of volcanoes going on, say
- 12:04Speaker 1: it just like lava flows. And then finally the planet
- 12:09Speaker 1: cooled down and the atmosphere thinned out to leave this
- 12:11Speaker 1: with Mars unlike Earth, right, uh, And it Mars formation
- 12:16Speaker 1: was virtually identical of the process that formed Earth. It's
- 12:20Speaker 1: about half the size, but there in the beginning as
- 12:23Speaker 1: far as makeup and the processes that they were undergoing, yeah,
- 12:26Speaker 1: they were virtually identical. Yeah. And being half the size
- 12:30Speaker 1: is pretty key to uh, why it's not like Earth
- 12:33Speaker 1: more um one of the reasons. So I guess we
- 12:37Speaker 1: should get into some more detail about this, Huh. I
- 12:39Speaker 1: think we should. The accretion that you talked about, the
- 12:41Speaker 1: small objects about it took about a hundred thousand years,
- 12:45Speaker 1: and as the gravitational field got stronger, it kept pulling
- 12:48Speaker 1: in more of this stuff and it would crash into
- 12:51Speaker 1: the planet and uh and get hot basically and just
- 12:55Speaker 1: sort of meld together. Yeah. I was like, oh, Mars,
- 13:00Speaker 1: and that was interesting. I looked at why planets are around,
- 13:03Speaker 1: and the reason why is because the gravitational field and
- 13:05Speaker 1: the spin. Uh it's sucking everything into the dense core. Yeah.
- 13:10Speaker 1: Well it's the core. The gravitational field behaves like it's
- 13:14Speaker 1: coming from the center, and everything else thinks it's coming
- 13:17Speaker 1: from the center. So the only way to get everything
- 13:21Speaker 1: is close to the center as possible is to make
- 13:23Speaker 1: a sphere like Obviously, if you had a square, that
- 13:27Speaker 1: would be a corner that's not as close as other parts.
- 13:30Speaker 1: That would be a creepy planet like a cube. Yeah,
- 13:33Speaker 1: but I wondered, you know, or why doesn't it look
- 13:35Speaker 1: like an asteroid, Let's say, but asteroids don't have the
- 13:38Speaker 1: kind of gravitational force to draw everything in like that
- 13:40Speaker 1: to form that sphere. It's called isotactic adjustment. Yeah. I
- 13:45Speaker 1: just thought, wait a minute, all these things are perfectly round.
- 13:49Speaker 1: We're not perfectly around. Want more pyramid shaped planet would
- 13:52Speaker 1: be kind of cool? Um. All right, So that was
- 14:18Speaker 1: the acretion, and now you have gas being released from
- 14:22Speaker 1: cooling after the core and mantle and crust have formed
- 14:26Speaker 1: in this hot ball. Right, and as the as the
- 14:30Speaker 1: gases are being released in the hot ball, um, they
- 14:34Speaker 1: are forming this atmosphere. They're supporting an atmosphere. They're floating
- 14:40Speaker 1: out and um kind of hanging around. Yeah, you know.
- 14:45Speaker 1: And um, so you've got an atmosphere in place. You
- 14:48Speaker 1: have a molten core, you have a softer mantle, and
- 14:53Speaker 1: then a crust that formed. Yeah. And um, as that
- 14:57Speaker 1: that softer mantle and the woont and core press up,
- 15:01Speaker 1: you have volcanic activity, yeah, which releases even more heat
- 15:06Speaker 1: and gas, which makes the atmosphere even thicker. And at
- 15:10Speaker 1: this point they think that there is a period of
- 15:12Speaker 1: um water presence on Mars where it was raining. So
- 15:17Speaker 1: then after you've got a primitive atmosphere. And then, as
- 15:21Speaker 1: it says in the article by Craig he's a great
- 15:25Speaker 1: writer for us. Yeah, PhD, that's right. Uh he said
- 15:29Speaker 1: March Mars couldn't catch a break, which was pretty accurate,
- 15:32Speaker 1: And it was pounded by meteors in the Solar system,
- 15:36Speaker 1: forming craters and basins and all sorts of interesting landforms.
- 15:41Speaker 1: And you know, the same thing happened here. But we
- 15:43Speaker 1: had like water and things like that too, cause erosion
- 15:48Speaker 1: and fill it, fill it in. On the Moon, there
- 15:51Speaker 1: isn't anything like that, so you still see those craters.
- 15:54Speaker 1: And but the same thing happened on Mars. Yeah, and
- 15:56Speaker 1: actually there was water on Mars um that bombard it,
- 16:00Speaker 1: and the that caused the magma to come up out
- 16:03Speaker 1: of the core of of Mars, creating volcanic activity and
- 16:09Speaker 1: shifts in the mantle and the crust. Um all released
- 16:12Speaker 1: hot gas into the Martian atmosphere, which thickened it and
- 16:16Speaker 1: increased its temperature, which led to rain, yes, rain, flooding, erosion.
- 16:23Speaker 1: So there was like a period at least for a
- 16:26Speaker 1: little while of um the presence of water on Mars.
- 16:31Speaker 1: There still list, dude, the presence of unfrozen flowing water.
- 16:37Speaker 1: Uh yeah, there's not flowing water right as of September
- 16:41Speaker 1: last year, they found water in the dirt. Yeah, it's
- 16:43Speaker 1: pretty exciting. Two points per cubic foot. Yeah, but but
- 16:46Speaker 1: it's a spoiler. Sorry, actually it can't be a spoiler.
- 16:49Speaker 1: But that happened in the bat right, Yeah, but if
- 16:53Speaker 1: if you haven't heard of it any yeah, alright, sorry,
- 16:56Speaker 1: Uh so, then Craig likens to Mars at this point
- 16:59Speaker 1: is a soft boiled and as the eggshell is cooling, uh,
- 17:03Speaker 1: the the yoke is gonna start busting through the mantle.
- 17:09Speaker 1: And that's like on Earth is what is going to
- 17:11Speaker 1: form things like volcanoes. And again those volcanoes and that
- 17:14Speaker 1: activity led to that atmosphere in the periods of rain
- 17:18Speaker 1: and flooding and erosion Olympus Mons. Yeah, that's a good
- 17:23Speaker 1: pixie song. Was that a pixie song for a dream
- 17:25Speaker 1: of the Olympus Mons? Nice? Yeah, I don't think I
- 17:28Speaker 1: did that one. What's that on? Uh? Yeah, okay, Uh.
- 17:35Speaker 1: Olympus Mons is the largest volcano there and it's like
- 17:38Speaker 1: it makes Mountain Everest look like a mole hill. As
- 17:40Speaker 1: a matter of fact, it's the largest point in the
- 17:43Speaker 1: known Solar system, the highest point. Yeah, yeah, the tallest um.
- 17:50Speaker 1: Remember our myth busting episode where we showed that Mount
- 17:53Speaker 1: Everest wasn't the tallest mountain. It's mounta Loa Yeah. Yeah. Um,
- 17:57Speaker 1: on Earth, mounta Looa is um something like it. It's
- 18:02Speaker 1: six miles from the ocean floor. Uh, yes, the rises
- 18:07Speaker 1: six nice chuck and um it's a hundred and forty
- 18:10Speaker 1: miles wide at its base. That's a big mountain. On
- 18:14Speaker 1: Earth on Mars, which is again half the size of
- 18:17Speaker 1: Earth in diameter. Olympus mons is sixteen miles tall. And
- 18:23Speaker 1: and that's not from an ocean floor either, Yeah, you know,
- 18:26Speaker 1: because there is no ocean on Mars exactly. But if
- 18:29Speaker 1: you want to see something cool, type in Mars, what
- 18:33Speaker 1: would Mars look like with ocean and people have done
- 18:36Speaker 1: like um simulations of it. It looks really neat, like
- 18:39Speaker 1: vacation worthy, like you would want to go there to vacam.
- 18:43Speaker 1: I mean, it's like a sunny beach with it looks
- 18:46Speaker 1: like Earth, but with weird continents um. And then it's
- 18:50Speaker 1: three seventy miles across Olympus mons Is. That's large. It's big.
- 18:54Speaker 1: And they have like pictures if you google it, uh,
- 18:57Speaker 1: compare it to Everest and it just dwarfs it, that's right.
- 19:02Speaker 1: And you can see pictures of it too, you know,
- 19:04Speaker 1: they snapped photos of it. It's pretty impressive. It's been
- 19:07Speaker 1: large volcano which eventually went dormant. All the volcanoes on
- 19:14Speaker 1: Mars went dormant, that's right, somewhere possibly about three billion
- 19:18Speaker 1: years ago, and um as the volcanoes went dormant, the
- 19:24Speaker 1: the the heat was released. Basically Mars had no more
- 19:28Speaker 1: heat to give from its core um, which meant the
- 19:32Speaker 1: atmosphere wasn't being fed any longer, so it thin, which
- 19:35Speaker 1: led to a drop in temperatures. Yeah, and how we
- 19:38Speaker 1: mentioned earlier, how the the fact that it was smaller
- 19:40Speaker 1: than Earth is one reason why it's not more like Earth.
- 19:43Speaker 1: That's the reason it cooled so fast, like Earth wouldn't
- 19:45Speaker 1: have cold nearly as fast, no, huh. And um it
- 19:48Speaker 1: also kept a magnetic field going thanks to its molten core.
- 19:53Speaker 1: Mars did not any longer, so you got a thin atmosphere,
- 19:57Speaker 1: cold temperatures. Um. The atmosphere that was there started freezing
- 20:01Speaker 1: and falling two Mars and was stored as ice. Any
- 20:05Speaker 1: water that was already on the planet's surface turned into
- 20:08Speaker 1: perma frost, and um Mars became it underwent what's called
- 20:12Speaker 1: the Great desiccation event, where it became a barren, deserted
- 20:17Speaker 1: desert planet. Yeah, and before that, these were this kind
- 20:20Speaker 1: of happened in cycles for a while, like the volcanic
- 20:22Speaker 1: action and then the gas is being released and like
- 20:26Speaker 1: major flooding from water, until like you said, eventually it's
- 20:30Speaker 1: the cold, not hot, but cold, dusty place that we
- 20:34Speaker 1: love today. Yeah, And what's um interesting is that Earth
- 20:38Speaker 1: and Mars were so similar as they formed and about
- 20:41Speaker 1: at the same time. About three billion years ago, Mars
- 20:44Speaker 1: underwent the Great Desiccation Event and Earth underwent the Great
- 20:48Speaker 1: Oxygenation Event, which gave rise to all life here on Earth.
- 20:52Speaker 1: The the appearance of algae, which created a breathable atmosphere
- 20:57Speaker 1: almost at about the same time. So they totally diverse,
- 21:00Speaker 1: two different paths that have around the same time. I
- 21:02Speaker 1: wonder if the main reason was because of its size. Yeah,
- 21:06Speaker 1: the cooling another Earth. Yes, it's interesting. Had it been
- 21:09Speaker 1: the exact same size, who knows, maybe we'd be like
- 21:14Speaker 1: going there and back right now, right on vacation like Swarnegger.
- 21:20Speaker 1: That was a good one, or Colin Farrell. Did you
- 21:23Speaker 1: see the remake? No? Although I heard the Robo Cup
- 21:27Speaker 1: remake was like surprisingly good, I haven't seen expecting that.
- 21:30Speaker 1: I haven't seen it either. Yeah, that's why I'll definitely
- 21:33Speaker 1: wait for TV for that one. You know, Uh, you
- 21:37Speaker 1: really don't care about seeing that one. Not even DVD
- 21:40Speaker 1: like TV. Well, I don't watch DVDs, Okay, I'm streaming
- 21:45Speaker 1: like the rest of the modern world. Not even a
- 21:49Speaker 1: laser disk Uh, should we talk about what it's like there. Yeah,
- 21:55Speaker 1: on the surface, Yes, the surface of Mars Um scientists
- 21:59Speaker 1: have divided into three major parts, the Southern Highlands, the
- 22:04Speaker 1: northern plains, and the polar regions, which we already said
- 22:07Speaker 1: you can actually see from Earth polar ice caps. Yeah,
- 22:10Speaker 1: just like Earth, but the ice caps are made of
- 22:13Speaker 1: carbon dioxide, so it's dry ice ice caps, and then
- 22:16Speaker 1: underneath there's water ice yea. So the southern highlands are vast.
- 22:22Speaker 1: I love our morning shows. It's always a little more
- 22:24Speaker 1: like laid back. I feel like, yeah, like I'm sleepy. Yeah,
- 22:28Speaker 1: you're not riddled with anxieties yet. That comes on about noon. Yeah,
- 22:33Speaker 1: I haven't had enough coffee yet. So you've got your
- 22:35Speaker 1: Southern Highlands, and like I said, they are extensive and vast,
- 22:38Speaker 1: and uh, it is elevated. It's the the highest part
- 22:42Speaker 1: of Mars and heavily cratered and again the highest part
- 22:45Speaker 1: of the solar system, right, because that's where Olympus Moms is.
- 22:48Speaker 1: That's right in the southern region, the Southern highlands. Uh.
- 22:51Speaker 1: And they scientists think it's ancient um these highlands because
- 22:55Speaker 1: of the craters, because the cratering happened close to four
- 22:59Speaker 1: billion years ago, and that was just meteors kind of
- 23:02Speaker 1: just pounding the solar system all over the place. So
- 23:06Speaker 1: the southern Highlands are high and then there's a very
- 23:09Speaker 1: um pronounced drop of several kilometers down to the um
- 23:16Speaker 1: northern plains, which are low lying regions. There are a
- 23:19Speaker 1: lot like the seas on the Moon um but they
- 23:22Speaker 1: do feature raised areas plateaus, a couple of them. Yeah,
- 23:27Speaker 1: the cinder cones. Yeah, well, the cinder cones are on
- 23:30Speaker 1: the plateaus. I think basically the mantle bulged up through
- 23:33Speaker 1: the crust. It's thinner in the northern region and the
- 23:36Speaker 1: mantle just pushed up and formed like continent sized plateaus. Um.
- 23:41Speaker 1: That are called crustal upwarps. That's a great word. Yeah,
- 23:45Speaker 1: I kept thinking I was reading it wrong. Nope, crystal upwarps. Uh.
- 23:49Speaker 1: And the these crystal upwarps, there's two of them. One
- 23:52Speaker 1: is the smaller it's Elysium membered Paradise that right, and
- 23:55Speaker 1: the other one is called Tharsis. Arcis in the Northern
- 24:00Speaker 1: Hemisphere is divided into eastern and western hemispheres. Tharsis is
- 24:05Speaker 1: in the west and Elysium is in the east. Yes,
- 24:09Speaker 1: celestial names are so cool, it really are You know,
- 24:12Speaker 1: what do we have on earth? New Jersey not thar No,
- 24:18Speaker 1: we start a campaign to rename New Jersey tharsus Um
- 24:25Speaker 1: and then like the main city could be Tharsist City,
- 24:27Speaker 1: which sounds super futuristic, and in fact it's Newark. Every
- 24:32Speaker 1: citizens issued to sparkly silver jumps. Oh. U, so you've
- 24:38Speaker 1: called out Olympus Mons is the highest point. That is
- 24:40Speaker 1: where in the it's in the region which this article
- 24:44Speaker 1: is confusing because it mentions the sarsest Reason region in
- 24:47Speaker 1: the southern um the hemisphere and in the northern hemisphere. Uh.
- 24:52Speaker 1: And I looked all over the place to find definitively
- 24:55Speaker 1: where it is. And I think the discrepancy comes from
- 24:58Speaker 1: the fact that it's equatory. Okay, it's pretty close to
- 25:02Speaker 1: the equator. Olympus Mons definitely is. So maybe it's both right,
- 25:08Speaker 1: But it's about at that point, um that the uh,
- 25:11Speaker 1: the highlands drop off into the northern plains. That's right.
- 25:16Speaker 1: And Uh, in Tharcis you have some pretty impressive canyons um,
- 25:21Speaker 1: a system called the Vallis Marineris and it makes the
- 25:26Speaker 1: Grand Canyon look like a tiny little hole in the ground.
- 25:29Speaker 1: It is three hundred and seventy miles wide and twenty
- 25:32Speaker 1: six thousand, four hundred feet deep, not to slam the
- 25:36Speaker 1: Grand Canyon, but if you've ever been there, imagine something
- 25:39Speaker 1: dwarfing that even, right, And again, Mars is half the
- 25:42Speaker 1: size of Earth, right, and it doesn't even just dwarf
- 25:45Speaker 1: the Grand Canyon. It's bigger than the Mariana Trench, which
- 25:48Speaker 1: is eighty miles long. So it's a good thousand miles
- 25:52Speaker 1: longer than the Mariana Trench. And the Mariana Trench is
- 25:56Speaker 1: forty three miles wide. The Vallis Marina Harris is seventy
- 26:01Speaker 1: miles wide. Yeah, that's nuts. Yeah, So it's a big
- 26:04Speaker 1: old trench. Like you can't even comprehend that kind of
- 26:07Speaker 1: size when you're standing there, No, imagine when you're in it.
- 26:10Speaker 1: You can't see the edges or anything like that. So
- 26:12Speaker 1: you're just of course, you can't be in it because
- 26:15Speaker 1: you know, people can't go to Mars. But you know,
- 26:16Speaker 1: I know what you mean, we will eventually, you think
- 26:19Speaker 1: Elon Musk predicts he will retire and die and be
- 26:22Speaker 1: buried on Mars. That's what he's he said. It's not
- 26:25Speaker 1: a certainty, but it's a possibility, but that's his goal. Yeah. Wow,
- 26:30Speaker 1: Well he's got the dough to make it happen, I guess,
- 26:32Speaker 1: and the vision, Like you say the same thing, but
- 26:34Speaker 1: you've just got the vision, right, you don't have the
- 26:37Speaker 1: billions of dollars. And it's not even my vision. I'm
- 26:40Speaker 1: just reporting what Elon Musk said. You know, oh I
- 26:43Speaker 1: thought you wanted to do that as well. Now go
- 26:45Speaker 1: to Mars. You want to get shot out of a cannon.
- 26:47Speaker 1: I would I abandoned that a long time ago. Yeah, Um,
- 26:51Speaker 1: what's the new plan? Just to be cremated? Yeah, distributed
- 26:56Speaker 1: with youmi? Okay, that's nice. Yeah, she's really calmed you down.
- 26:59Speaker 1: She is like, first, first things first, this cannonball thing, right,
- 27:03Speaker 1: it's gotta go. Um, the polar regions you can see
- 27:08Speaker 1: from Earth, like we said, and it is surrounded by
- 27:10Speaker 1: a bunch of dunes and they are like I think
- 27:13Speaker 1: you said, it was frozen carbon dioxide, right, So it's
- 27:16Speaker 1: not like the ice we have here on Earth. No,
- 27:18Speaker 1: it's well, we have it here on Earth, dry ice.
- 27:20Speaker 1: Well yeah, but just it's not our polar ice cap.
- 27:23Speaker 1: And like Earth, depending on the season, the ice caps
- 27:27Speaker 1: are going to change shape in the summertime, the CEO
- 27:30Speaker 1: two from the northern caps uh melt away and and
- 27:35Speaker 1: there's water ice below that, so not dry ice as
- 27:39Speaker 1: they call it in Spanish agua ice. And that's why
- 27:43Speaker 1: apparently we sent the Phoenix there. Uh. They were like,
- 27:47Speaker 1: send that thing up there and dig down into the
- 27:49Speaker 1: frozen dirt and let's see what what it's made up of.
- 27:54Speaker 1: And they found water. They found uh two points. Phoenix
- 27:59Speaker 1: didn't find it. Phoenix found like found uh that the
- 28:03Speaker 1: Martian soil is filled with perchlorate, which is a big
- 28:07Speaker 1: problem for Mars missions. Yeah, that's like very bad for
- 28:11Speaker 1: human beings. It's extremely toxic. It's a thyroid toxin has
- 28:16Speaker 1: a very quick effect um as a developmental effect on
- 28:19Speaker 1: infants and um fetuses, So reproducing on Mars would be
- 28:24Speaker 1: a big problem. And even in adults, it has a
- 28:27Speaker 1: big effect on your thyroid, which affects your hormone production
- 28:31Speaker 1: function UM. And it's everywhere. It's in the light Martian
- 28:35Speaker 1: dust and Mars has tons of dust storms that enveloped
- 28:38Speaker 1: the whole planet, which we'll talk about for like weeks
- 28:41Speaker 1: at a time. Yeah, and there there's pe chloric in
- 28:44Speaker 1: those dust storms, so it would get everywhere. So they
- 28:47Speaker 1: just found out like a couple of months ago that
- 28:50Speaker 1: this is everywhere and it's going to be a huge
- 28:53Speaker 1: challenge to Mars missions in the future. But they're saying,
- 28:56Speaker 1: now that we know about it, we can design around it. Yeah,
- 28:59Speaker 1: it's just seems so uninhabitable, Like, I don't know if
- 29:04Speaker 1: our lifetime we're going to see it a manned mission.
- 29:06Speaker 1: Maybe we'll definitely see a fly by. Yeah, yeah, a
- 29:10Speaker 1: man fly by. Yeah. Okay, you and Elon Musk, we will.
- 29:15Speaker 1: That's not even just for this Elon Musk in the
- 29:19Speaker 1: Senate Okay, yeah, Marr. They're all so excited. So Chucker's
- 29:27Speaker 1: up next. We're going to talk about the interior of Mars. Okay,
- 29:53Speaker 1: so we're back and we're talking about Mars's interior. And
- 29:56Speaker 1: to talk about Mars interior is really boring unless you
- 30:00Speaker 1: compare to Earth, and then all of a sudden you're like, oh,
- 30:02Speaker 1: this is cool. So let's compare to Earth. The Earth's
- 30:06Speaker 1: core is um has a radius of about from the
- 30:10Speaker 1: center to the surface, and is made up of iron
- 30:14Speaker 1: in two parts, the solid core and the liquid outer core,
- 30:18Speaker 1: and the interplay between those two creates Earth's magnetic field,
- 30:23Speaker 1: which allows for the northern lights. Oh yeah, encompasses what else, Ah,
- 30:32Speaker 1: that's about it. Okay. Mars's core radius is only about
- 30:37Speaker 1: nine um and between nine miles and it is probably
- 30:43Speaker 1: made up also of iron, but throwing some sulfur, maybe
- 30:46Speaker 1: a little oxygen. And they believe, Uh, I don't. I
- 30:52Speaker 1: didn't get this. He said it may be made up
- 30:54Speaker 1: maybe maybe molten, but it's unlikely. So they still don't know.
- 30:57Speaker 1: I guess. And they think that The reason they don't
- 31:00Speaker 1: think that it's molten, though, is because Mars has a
- 31:04Speaker 1: very weak magnetic field. Um, but maybe not always. Yeah,
- 31:09Speaker 1: it probably had a strong magnetic field and the and
- 31:11Speaker 1: before the great desiccation event, um, but now it doesn't have.
- 31:15Speaker 1: When they think that if it is molten, it's not.
- 31:19Speaker 1: There's not a lot to it. Okay, Yeah, that makes sense.
- 31:22Speaker 1: Around the Earth, score is softer mantle like toothpaste, and
- 31:27Speaker 1: it's way less dense than it is iron and magnesium
- 31:30Speaker 1: silicate about eighteen hundred miles thick. And that's when you
- 31:35Speaker 1: see a volcano and lava flowing from a volcano. That's
- 31:38Speaker 1: where that's coming from. Well, it comes from the magma
- 31:40Speaker 1: through there the liquid all right, isn't it. I think
- 31:44Speaker 1: so we did a podcast on volcanos. You think you
- 31:48Speaker 1: remember that was a good one, the volcanos one, I thought, so.
- 31:52Speaker 1: I was worried about it and chuck the mantle pushing
- 31:56Speaker 1: up through the through the surface. Yeah, counts for those
- 32:01Speaker 1: crustal uplifts, up up warps, up warps, that's right. Um.
- 32:07Speaker 1: And here on Earth we have things like volcanoes, active
- 32:11Speaker 1: volcanoes and earthquakes, and they're largely due to, if not
- 32:15Speaker 1: exclusively due to, um, the fact that we have continental
- 32:19Speaker 1: plates like the crust of Earth, which Mars also has
- 32:23Speaker 1: a crust, but Earth's crust is broken up into these
- 32:26Speaker 1: plates that drift and move around slowly and rub up
- 32:29Speaker 1: against one another. Um. And that's where the fault lines exist.
- 32:33Speaker 1: And along those fault lines you have volcanoes and earthquakes.
- 32:36Speaker 1: Mars that's not the case as a crust, but it's
- 32:39Speaker 1: not broken into plates. It's solid. Yeah. I thought that
- 32:42Speaker 1: was pretty interesting. And that's why there's no active volcanoes
- 32:46Speaker 1: right now for one reason. Yeah. Yeah. Um. And we
- 32:50Speaker 1: while we're talking about Mars, well we probably should have
- 32:55Speaker 1: mentioned it on the surface, but it's a neat little
- 32:57Speaker 1: tidbit if you ask me, do you know I Mars
- 33:00Speaker 1: is rust colored? Uh no, because it's coated in rust. Yeah. Yeah,
- 33:06Speaker 1: it's oxidized iron in the soil, which makes it rusted.
- 33:11Speaker 1: It's a rusty old planet, a rusty, dusty, cold, windy,
- 33:17Speaker 1: uninhabitable perhaps planet. And again the reason why it's probably
- 33:22Speaker 1: uninhabitable is it lacks an atmosphere, or it practically lacks
- 33:28Speaker 1: an atmosphere. There is a very thin one still, Yeah,
- 33:31Speaker 1: I guess we can compare that to Earth to um.
- 33:33Speaker 1: Mars's atmosphere is mostly carbon dioxide. On Earth it's less
- 33:39Speaker 1: than one percent, right, Like you could just stop right there. Toxic,
- 33:45Speaker 1: a lot less nitrogen two point seven percent compared to
- 33:48Speaker 1: Earth seventy eight. Not much oxygen at all, only point
- 33:51Speaker 1: one three. That's a big factor. It's toxic again and
- 33:57Speaker 1: um about one as much water vapor as on Earth. Yeah,
- 34:03Speaker 1: you need that too, inhospitable, which is why they there
- 34:08Speaker 1: are proposals to seed Mars to terraform it. Yeah, basically
- 34:13Speaker 1: going and like artificially stimulate an atmosphere to form so
- 34:18Speaker 1: that in ten thousand and fifty hundred thousand years it
- 34:22Speaker 1: could conceivably be habitable. Yeah, and we we did a
- 34:26Speaker 1: show on that too. Is all coming together. It's a
- 34:28Speaker 1: long term plan, but sure, which means we'll never do it.
- 34:32Speaker 1: Elon Musk will maybe his grandchildren. Uh So. The atmospheric
- 34:37Speaker 1: pressure in Mars is interesting too. It's super low and
- 34:41Speaker 1: super cold, and that's why there is no water liquid
- 34:45Speaker 1: flowing because it's either going to freeze or evaporate. They
- 34:49Speaker 1: can't just exist as water these days. Nope. But like
- 34:53Speaker 1: we said, possibly probably did at one point. So you've
- 34:57Speaker 1: got a thin atmosphere, which means a lot of um
- 35:00Speaker 1: solar radiation is not blocked, is not reflected um, which
- 35:06Speaker 1: means that you have very wild swings in daily average
- 35:10Speaker 1: temperature on Mars. Because Mars does have a day, it
- 35:14Speaker 1: does rotate, and actually it rotates it about the same
- 35:17Speaker 1: rate as Earth. The Mars salt which is short for
- 35:22Speaker 1: solar day, it's just about forty three minutes longer than
- 35:26Speaker 1: um Earth's day. Yeah, but because it's further out away
- 35:31Speaker 1: from the Sun, it's orbit around the Sun takes longer.
- 35:33Speaker 1: So it's year is about twice as long as a
- 35:36Speaker 1: year on Earth. Six hundred and eighty six point nine
- 35:39Speaker 1: eight Earth days, which means the seasons last longer, which
- 35:44Speaker 1: makes them more extreme as we'll see. Yeah, and you
- 35:47Speaker 1: talked about the temperature fluctuation. It's almost a hundred degrees
- 35:50Speaker 1: fahrenheit on a daily basis. The difference in temperature, that's enormous. Again,
- 35:57Speaker 1: not very friendly for us humans. No, well figure it out.
- 36:00Speaker 1: You have to pack a big suitcase. You know, you
- 36:02Speaker 1: have to pack your your thong as well as your
- 36:06Speaker 1: Arctic explorer. Well, you could just wear a thong under
- 36:11Speaker 1: your artic explore coast there, it's the key to Mars.
- 36:15Speaker 1: Where layers pack big where layers. But like you said,
- 36:21Speaker 1: there are seasons in the spring and early summer, the
- 36:23Speaker 1: sun heats up the atmosphere and the dust lifts up
- 36:28Speaker 1: and and makes it even hotter once that dust is
- 36:30Speaker 1: in the atmosphere, and it basically is what causes those
- 36:35Speaker 1: big dust storms we're talking about. Yeah, the dust, the
- 36:39Speaker 1: dust particles get suspended and invite more heat, which suspends
- 36:44Speaker 1: more particles than um. It creates wind there winds. Yeah, well,
- 36:50Speaker 1: just like here on Earth, it creates convection cells, which
- 36:54Speaker 1: creates wind. And as those wind speeds whip up because
- 36:58Speaker 1: the atmosphere is thinner, you have to have higher speeds
- 37:01Speaker 1: because the wind has less to push against air to
- 37:04Speaker 1: push against, so it takes higher speed winds. But once
- 37:08Speaker 1: they do hit something like a hundred and twenty miles
- 37:10Speaker 1: an hour, the entire planet can become enveloped in a
- 37:14Speaker 1: dust storm that can last months. That's crazy. And again
- 37:18Speaker 1: it's not just dust. It's dust with one of the
- 37:22Speaker 1: more toxic compounds known to humanity in every bit of it. Yeah,
- 37:27Speaker 1: and it's not going to blow off a Mars rover
- 37:29Speaker 1: these things, you know, way like in the tons. Yeah,
- 37:32Speaker 1: I think theirsities one ton one ton. And actually what's
- 37:36Speaker 1: strange is the dust storms, it says, are um beneficial
- 37:40Speaker 1: because they will blow the any um Martian dirt caked
- 37:43Speaker 1: on the solar panels. Yeah, that makes sense too, or
- 37:46Speaker 1: maybe it might reveal something, Yeah that wasn't there before,
- 37:49Speaker 1: like a pyramid. That'd be pretty cool, Chuck, I want
- 37:54Speaker 1: to talk about water on Mars. That was NASA's directive.
- 37:57Speaker 1: Follow the water for many years and still as because
- 38:00Speaker 1: they think they're in holds. The key to the big
- 38:03Speaker 1: question is there possibilities of having life on Mars? Is there? Life?
- 38:09Speaker 1: Was their life on Mars and we're not talking about Martians. Unfortunately,
- 38:13Speaker 1: we're talking about maybe bacteria which could be Martians. I mean,
- 38:17Speaker 1: if it lives on Mars, it's Martian. I guess it's
- 38:20Speaker 1: a good point. Everybody just basically needs to lower the
- 38:23Speaker 1: bar for their expectations of what a Martian is. Yeah, right,
- 38:27Speaker 1: you know what I mean, instead of little green men, right,
- 38:30Speaker 1: it's bacteria and um. When this article was written, it
- 38:33Speaker 1: was pre curiosity, but it just a couple of months
- 38:36Speaker 1: ago Curiosity confirmed, uh that there is water present in
- 38:42Speaker 1: the soil. Yeah, and they think it's everywhere. Yeah, it's
- 38:46Speaker 1: basically the soil has a very big leaching property, yeah,
- 38:50Speaker 1: where it absorbs water from the atmosphere and locks it
- 38:53Speaker 1: in there, so that if if we went up there,
- 38:57Speaker 1: we could extract um about, like A said, two pints
- 39:00Speaker 1: of water from every cubic foot of soil that's mine.
- 39:04Speaker 1: It's pretty cool. It is pretty cool. Again, though, we
- 39:06Speaker 1: have that per chlorate problem. It's everywhere. It would get
- 39:10Speaker 1: in the water, and one of the ways that it
- 39:11Speaker 1: transfers to humans and becomes toxic is through drinking water,
- 39:16Speaker 1: so we'd have to deal with that. But ironically, the
- 39:19Speaker 1: thing about per chlorate being there, it's also used in
- 39:22Speaker 1: solid rocket fuel here on Earth. So we would need
- 39:25Speaker 1: it to get to Mars, but once we got to Mars,
- 39:26Speaker 1: we wouldn't want to have it. Interesting, that is very ironic. Thanks.
- 39:31Speaker 1: So you're talking, Chuck about how water could consuerably lead
- 39:34Speaker 1: to life on Mars. We it's vital to life. It's
- 39:38Speaker 1: one of the um vital parts of life. I can't
- 39:41Speaker 1: remember the term for him. Not a building block, one
- 39:46Speaker 1: of the essential some things for life component? Yes, yeah,
- 39:51Speaker 1: I think that is it essential component for life. We
- 39:54Speaker 1: worked that out together. This has been morning condition and no. No.
- 39:59Speaker 1: Now they found water on Mars and confirmed that it
- 40:01Speaker 1: is there, and they knew all along that there was
- 40:03Speaker 1: water ice on Mars. Um. It makes that Martian rock
- 40:08Speaker 1: from four billion years ago seem all the more likely
- 40:12Speaker 1: that it is displaying evidence of fossilized microbes. Yeah. And
- 40:16Speaker 1: they used to think that there was methane uh in
- 40:19Speaker 1: the atmosphere or trace amounts, but I think that has
- 40:21Speaker 1: been debunked now with upon further research. Yeah. Yeah, because
- 40:25Speaker 1: again when this article was written, it sounds like they
- 40:28Speaker 1: thought it was still like they still head detective methane
- 40:32Speaker 1: and they didn't know whether it was from of biological
- 40:35Speaker 1: or chemical origin. Yeah, more recent studies UM as of
- 40:38Speaker 1: October two thousand twelve, UM, they analyzed the atmosphere uh
- 40:44Speaker 1: for methane six times and basically found no more than
- 40:48Speaker 1: one point three parts per billion. Yeah, that's not good
- 40:51Speaker 1: for evidence of life. Yeah, and that's about one six
- 40:55Speaker 1: as much as they had previously estimated. And they thought, well,
- 40:59Speaker 1: maybe it went some where, you know, and and they
- 41:02Speaker 1: NASA said no, it wouldn't. UM. It would have been
- 41:05Speaker 1: super exciting, but it's methane doesn't uh distribute and leave
- 41:10Speaker 1: like that that quickly, like it would still be around.
- 41:14Speaker 1: So unfortunately, no methane. Speaking of methane UM as evidence
- 41:18Speaker 1: of life. Remember our termite episode, somebody wrote in to say,
- 41:21Speaker 1: did you know termites or like a huge contributor of
- 41:24Speaker 1: methane to on Earth. They're the second largest contributor of
- 41:28Speaker 1: methane after five stock. Yeah. Wow, even beating out humans. Wow,
- 41:33Speaker 1: that's crazy. Yeah, because we shoot a lot of ducks,
- 41:36Speaker 1: we humans, some of us termites have flatulent insects uh
- 41:42Speaker 1: so bacteria UM. Martian soil has been known to be
- 41:48Speaker 1: like formally chemically active, but maybe not biologically, but it
- 41:52Speaker 1: is possible maybe because they have a good example in Greenland. Um,
- 41:57Speaker 1: they found bacteria that was dormant for a hundred twenty
- 42:00Speaker 1: tho years frozen in the ice, and when they unfroze it,
- 42:04Speaker 1: it started multiplying again in the beginning of the apocalypse. Yeah,
- 42:08Speaker 1: it's kind of creepy. Yeah, but like it's not stopping.
- 42:12Speaker 1: Possibly in the polar ice caps on Mars. Maybe that's
- 42:14Speaker 1: going on to Yeah, we just don't know yet. Yeah,
- 42:17Speaker 1: they think that, um, it is very possible that you
- 42:20Speaker 1: could take some of them, the extreme of file bacteria,
- 42:23Speaker 1: ones that live like in um volcanic vents undersea and
- 42:27Speaker 1: things like that, and transplant them two Mars and some
- 42:30Speaker 1: of them would survive, especially mineral thriving um bacteria ones
- 42:35Speaker 1: that like eat minerals. You could put them on Mars
- 42:39Speaker 1: and they would they would do Okay. Possibly well spaceships
- 42:43Speaker 1: like if we could possibly bring our own bacteria there
- 42:47Speaker 1: by accident as well, you know, just from like I
- 42:50Speaker 1: think the International Space Station had E. Colid in it. Yeah,
- 42:53Speaker 1: and possibly lee Jonella retainers disease on the I S
- 42:58Speaker 1: I Wow, Yeah, or the I S S. That sounds
- 43:01Speaker 1: like a like a movie waiting to happen. Sure, I
- 43:05Speaker 1: guess we sort of did that with Outland. Was there?
- 43:08Speaker 1: Was it a disease? A disease? It was just a
- 43:11Speaker 1: cop chasing a bad guy. Again. I wonder if it
- 43:15Speaker 1: holds up. I doubt it. Yeah, if it held up,
- 43:19Speaker 1: it'd be alien like, it would still be in the rotation.
- 43:23Speaker 1: But Outline doesn't play on cable very often, you know,
- 43:25Speaker 1: it really doesn't. That is pretty good evidence too. I
- 43:29Speaker 1: remember the Outland Mad magazine. Um, but I didn't have
- 43:34Speaker 1: that one. Yeah, that was a good one. Um So Chuck,
- 43:37Speaker 1: You remember we were talking about way back how the
- 43:40Speaker 1: um Viking and um mariner and Mars orbiters provided this
- 43:47Speaker 1: evidence that Mars was just a dead, barren planet and
- 43:50Speaker 1: really undermine the idea that there was possibly life there
- 43:53Speaker 1: and that it was lush. Yeah. Well it also provided
- 43:58Speaker 1: some conspiracy theorists pretty solid evidence that there was or
- 44:02Speaker 1: is some sort of civilization on Mars, because yeah, Viking
- 44:07Speaker 1: one in nineteen seventies six produced a photo that looked
- 44:12Speaker 1: a whole lot like a fernic type face, like the
- 44:18Speaker 1: face on Mars. Pretty clearly a face if you look
- 44:21Speaker 1: at it. Uh, it was two miles from head to
- 44:25Speaker 1: toe from tip to bottom. So it wasn't like Jesus
- 44:28Speaker 1: on a piece of toast. No, I mean it looked
- 44:30Speaker 1: like it looked like a artificially constructed monument, a face
- 44:35Speaker 1: of a monument. Maybe when that had toppled, it was
- 44:37Speaker 1: now just poking out from the Martian soul soil. Um.
- 44:41Speaker 1: So they looked uh, closer in, but there's a lot
- 44:45Speaker 1: of cloud cover, so they got kind of a garbled look.
- 44:49Speaker 1: And they looked again more recently, maybe two thousand eight
- 44:52Speaker 1: or two thousand eleven, and it's very clearly just a
- 44:55Speaker 1: mesa that's disappointing. It is, especially like when you look
- 44:59Speaker 1: at that original Yeah, yeah, when you look at the
- 45:03Speaker 1: Viking one photo, Yeah, it looks like a top old
- 45:05Speaker 1: statue head. Yeah it does. It actually factored into that
- 45:09Speaker 1: terrible movie um Mission to Mars, Yeah wow, which I
- 45:14Speaker 1: saw with hippie rob By the way. Oh really yeah? Nice?
- 45:17Speaker 1: Was that is the last time you saw him? It
- 45:19Speaker 1: was among that he just walked into the woods after that,
- 45:22Speaker 1: never to be seen. Wasn't that that was Brian to Palm,
- 45:26Speaker 1: I wasn't it. I think it might have been so disappointing.
- 45:30Speaker 1: I mean, it had an all starcust Gary Sinise, don Cheetle.
- 45:35Speaker 1: I think Bill Paxton Maybe I don't think it was Pullman,
- 45:40Speaker 1: but I might be confusing Bill Paxton from Apollo thirteen. Anyway,
- 45:44Speaker 1: it didn't pan out very well. What do you got
- 45:47Speaker 1: anything else? Yeah? Um, I don't know why this article
- 45:50Speaker 1: doesn't mention if Mars has two moons, phobos and demos. Yeah,
- 45:53Speaker 1: they didn't get into that at all. No, um and uh,
- 45:58Speaker 1: Mars popped up and pops up in pop culture a lot.
- 46:03Speaker 1: There's um, the Mars Volta the band. Yeah. Uh. David
- 46:08Speaker 1: Bowie had a song called Life on Mars, one of
- 46:10Speaker 1: the great songs. The Misfits had the greatest Mars song,
- 46:14Speaker 1: Teenagers from Mars. That's a great song. Yeah. Oh what's
- 46:19Speaker 1: his name? Jared Leto right thirty seconds to Mars. Yeah,
- 46:24Speaker 1: they're going on tour right after his oscar Win. I
- 46:27Speaker 1: had never heard any of his music until the other day.
- 46:30Speaker 1: I was like, what are they like? And Emily tried
- 46:32Speaker 1: to describe it. Then she just played a song. Yeah,
- 46:34Speaker 1: it's not my bag, mine anything, but good for him.
- 46:36Speaker 1: Oh yeah, I think they're like huge internationally. Yeah, he's
- 46:39Speaker 1: got gout. Did you know that? I did not know
- 46:41Speaker 1: that he needs to lay off the pet Noah, I
- 46:43Speaker 1: think he um. I think it was had to do
- 46:46Speaker 1: with his weight gain and loss for the John Lennon
- 46:50Speaker 1: Um the Mark David Chapman movie. He did, Oh really, Yeah,
- 46:54Speaker 1: he got all fat to play Mark David Chapman, then
- 46:56Speaker 1: like got all skinny again, I think, got gout because
- 46:58Speaker 1: of it, and then got even anywhere to play Rayon
- 47:01Speaker 1: in Dallas Buyers Club. Dude, have you seen it? Yes?
- 47:05Speaker 1: How thin can two people get? And they were pretty thin?
- 47:08Speaker 1: Like the two of them together make me. And there's
- 47:12Speaker 1: gotta be like that. There's gotta be a safe way
- 47:15Speaker 1: to lose and regain weight. Yeah, but I'll bet there's
- 47:20Speaker 1: not very many safe ways to gain weight to make
- 47:23Speaker 1: yourself look pudgy, no, I mean, and then to lose
- 47:26Speaker 1: it again, I'll bet when it's been done, like from
- 47:28Speaker 1: DeNiro to Fat mac On always sunny. I think they
- 47:31Speaker 1: say they just eat like lots of garbage and just
- 47:35Speaker 1: pile it on. Yeah, that's not I'll beat at all now.
- 47:38Speaker 1: But you know that's one of my pet peeves. When
- 47:40Speaker 1: you take a fit person in like the game thirty
- 47:42Speaker 1: Pounds for a movie and it it's like you don't
- 47:45Speaker 1: look like a fatter person, and you look like a
- 47:47Speaker 1: fit person who like has a distended belly. You know,
- 47:53Speaker 1: it takes years to get this look. You know you
- 47:56Speaker 1: gotta work at it, sculpt this. Yeah, Um, okay, you
- 48:00Speaker 1: got anything else? I got nothing else. I think this
- 48:03Speaker 1: is better than the sun. Oh yeah. As far as
- 48:06Speaker 1: our our celestial episodes go far less physics that we
- 48:10Speaker 1: had to deal with. We haven't done the moon straight up?
- 48:12Speaker 1: Have we? I think we have? Have we, Jerry? Have
- 48:16Speaker 1: we done the moon? I think we did because we
- 48:18Speaker 1: talked about its origin, whether it was calved, whether it
- 48:21Speaker 1: was a separate decreation. I'm pretty sure we've done the moon.
- 48:25Speaker 1: All right, we'll look it up. Is getting bad? We
- 48:27Speaker 1: need we need to get a list together, so we
- 48:30Speaker 1: quit boring everyone with this. Yeah, you'd think we'd edited out,
- 48:34Speaker 1: but we just don't. Well, if you want to learn
- 48:37Speaker 1: more about Mars, you can type that word into the
- 48:40Speaker 1: search bar at how stuff works dot com. And Uh,
- 48:43Speaker 1: since I said search bar, it's time for listener mail. Uh, Josh,
- 48:52Speaker 1: I'm gonna call this um your theory on eating what
- 48:54Speaker 1: you crave? Did you see this email? No? Um, just
- 48:58Speaker 1: listen to the Salt podcast Dude and Josh posture that
- 49:01Speaker 1: you could get along just fine eating only what you crave.
- 49:04Speaker 1: I'm not sure how serious he was, though fairly serious,
- 49:07Speaker 1: fairly okay, I'll agree that if it depends on whether
- 49:09Speaker 1: the right I'll agree that a hundred and fifty years
- 49:12Speaker 1: ago this may have been pretty viable. But these days
- 49:14Speaker 1: it's a different story. There's a lot of evidence that
- 49:17Speaker 1: points to food manufacturers actually designing junk foods that make
- 49:21Speaker 1: you crave more of them, mainly sugar and fat heavy foods.
- 49:24Speaker 1: There's one great book in particular called Good Calories, Bad
- 49:27Speaker 1: Calories by Gary Tobbs, basically tells the story of how
- 49:30Speaker 1: a lot of what the f d A in U
- 49:32Speaker 1: s d A recommends as wrong and how it got
- 49:35Speaker 1: that way. For instance, the guy who conducted the seven
- 49:38Speaker 1: country study, which is what caused the government to say
- 49:41Speaker 1: fat will kill you, simply throughout data that contradicted the
- 49:45Speaker 1: result he was looking for. Throwing the fact that corn
- 49:48Speaker 1: is subsidized and super cheap, we have the recipe for
- 49:51Speaker 1: an obese, misinformed population that's addicted to sugar. Has been
- 49:55Speaker 1: fed terribly wrong information about health for a long time. Yeah,
- 49:58Speaker 1: I've learned recently, like you're supposed to have fats, and
- 50:01Speaker 1: there are good fats and there are bad fats, but
- 50:03Speaker 1: like low fat is a not a good way to go,
- 50:08Speaker 1: and it has been kind of foisted on us, foisted Jerry.
- 50:13Speaker 1: Jerry likes the value that word uh. And that is
- 50:15Speaker 1: from Steve Baum, the bomber in what he calls good
- 50:19Speaker 1: Old New Jersey or as we calls Parsis. Is he
- 50:26Speaker 1: from Tharsus City, That is Steeve Bomb. I don't know
- 50:29Speaker 1: if he's from Sarcas City or not, but he's from
- 50:31Speaker 1: somewhere in dars There is a really good article about um,
- 50:39Speaker 1: how food scientists engineer foods to make us crave them
- 50:45Speaker 1: is on the New York Times. It was a couple
- 50:46Speaker 1: of years ago by a guy named Michael Moss. Yeah,
- 50:49Speaker 1: and in your defense, I don't think you were. I
- 50:51Speaker 1: think you meant it more along the lines of craving
- 50:55Speaker 1: real foods and not necessarily I'm craving ben and Jerry's
- 50:58Speaker 1: or pretzels, you know, i' meant like like craving a
- 51:02Speaker 1: steak or something like that, not ignoring that and going
- 51:05Speaker 1: with you know, ahead of lettuce Um. I can't find
- 51:10Speaker 1: the name of that article, but it's a Michael Moss
- 51:13Speaker 1: article and it's from the New York Times, and dude,
- 51:16Speaker 1: it is good. It's one of those really extensive long
- 51:19Speaker 1: form ones that like should be long form because there's
- 51:22Speaker 1: just so much great information in it by opening ye
- 51:25Speaker 1: So look it up, everybody. It will open your eyes. Uh.
- 51:29Speaker 1: If you want to get in touch with Chucking Me,
- 51:31Speaker 1: you can tweet to us at s y s K podcast.
- 51:34Speaker 1: You can join us on Facebook dot com slash Stuff
- 51:36Speaker 1: you Should Know, or you can send us an email
- 51:39Speaker 1: to stuff Podcast at how Stuff Works dot com. Stuff
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