Latest / Space News Today / Runaway Black Hole Confirmed, Mercury Still Active & 2032 Moon Impact Risk
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- 0:00Welcome to Astronomy [music] Daily, your
- 0:03source for the latest space and
- 0:05astronomy news. I'm Anna.
- 0:07>> And I'm Avery. Thanks for joining us on
- 0:09this Thursday, February 29th, [music]
- 0:112026. We've got a fascinating lineup
- 0:14today, covering everything from
- 0:16Mercury's surprising geological activity
- 0:18to a possible [music] asteroid impact on
- 0:20the moon.
- 0:21>> That's right. We're going to explore
- 0:24bright streaks on Mercury that suggest
- 0:26[music] our smallest planet is still
- 0:29geologically active. Check in on NASA's
- 0:32[music] test satellite after a command
- 0:34error temporarily sidelined it. And
- 0:36discuss the discovery of an intriguing
- 0:39Earthlike exoplanet that's much [music]
- 0:41colder than you might expect. Plus,
- 0:43we'll bring you updates on NASA and
- 0:45SpaceX moving up the Crew 12 launch to
- 0:48help out the skeleton crew [music]
- 0:49currently on the International Space
- 0:50Station. Then we'll dive into the wild
- 0:52world of runaway black holes tearing
- 0:55through space and wrap up with what
- 0:57could be a once-in-a-lifetime [music]
- 0:59scientific opportunity if an asteroid
- 1:01hits the moon in 2032.
- 1:03>> It's quite a ride today. [music] Let's
- 1:06get started with some surprising news
- 1:08from the innermost planet in our solar
- 1:10system.
- 1:11>> Mercury has long been viewed as a small
- 1:14geologically dead world, but new
- 1:16research is challenging that assumption
- 1:18in a big way. A team led by researchers
- 1:21at the University of Burn has uncovered
- 1:23hundreds of bright linear streaks on
- 1:26crater slopes that point to ongoing
- 1:28volcanic activity and volatile loss from
- 1:30Mercury's interior.
- 1:32>> This is really fascinating work, Avery.
- 1:35The team applied deep learning
- 1:37techniques to analyze about 100,000
- 1:40highresolution images taken by NASA's
- 1:43Messenger spacecraft during its orbital
- 1:45mission from 2011 to 2015. Using this
- 1:49automated approach, they mapped the
- 1:51global distribution of roughly 400
- 1:54bright streaks that had previously
- 1:56escaped comprehensive cataloging.
- 1:59>> And what they found was pretty telling.
- 2:01These features, known as slope lineier,
- 2:03occur preferentially on sun-facing
- 2:06slopes inside relatively young impact
- 2:08craters that cut through thick volcanic
- 2:10deposits. The concentration of streaks
- 2:12in these thermally stressed environments
- 2:15indicates that solar heating is an
- 2:17important trigger for volatile escape
- 2:19from near surface layers. Much of these
- 2:22streaks originate in small bright
- 2:24depressions called hollows that dot
- 2:27crater floors and walls. These hollows
- 2:29have long been interpreted as products
- 2:31of volatile loss and their close
- 2:34association with the lineier supports
- 2:36the view that both structures form when
- 2:39volatile components like sulfur or other
- 2:41light elements escape from the
- 2:43subsurface.
- 2:45>> According to the research team, fracture
- 2:47networks created by the original impact
- 2:49events likely provide pathways that
- 2:51allow volatile rich material from deeper
- 2:53levels to reach the surface. As solar
- 2:56radiation warms these exposed zones,
- 2:58volatiles can escape into space, driving
- 3:01the development or modification of the
- 3:03bright streaks down slope. What's
- 3:06particularly exciting is the timing.
- 3:08This research arrives just as the joint
- 3:11ESA and JAXA Becky Columbbo mission is
- 3:14on route to Mercury. The mission carries
- 3:16an advanced payload that includes
- 3:19several key contributions from the
- 3:21University of Burn.
- 3:22>> Absolutely. The Becky Columbbo laser
- 3:25altimeter or Bella was designed and
- 3:27built in part at the University of Burn.
- 3:30It will use laser pulses from an orbit
- 3:32roughly a thousand km above the surface
- 3:35to measure elevations with about 10 cm
- 3:38precision, enabling a detailed
- 3:40reconstruction of Mercury's topography.
- 3:42The burn team also contributed the ion
- 3:45optical system for Stroio, a NASA mass
- 3:48spectrometer on Bey Columbo that will
- 3:51measure the composition of Mercury's
- 3:53extremely thin atmosphere, connecting
- 3:56present-day volatile escape at the
- 3:58surface to the surrounding exosphere.
- 4:01The research team plans to use the
- 4:02current inventory of slope streaks as a
- 4:05baseline for future comparisons once
- 4:07Beepy Columbbo begins returning data. By
- 4:10imaging key regions again, they aim to
- 4:12determine whether new streaks have
- 4:14formed or existing ones have changed
- 4:16since the messenger era. Any such
- 4:19changes would provide strong evidence
- 4:21that volatiled driven processes are
- 4:23still reshaping Mercury's surface on
- 4:25human [snorts] time scales.
- 4:27>> It's a great reminder that even our
- 4:29smallest, closest planetary neighbor
- 4:32still has secrets to reveal. Mercury is
- 4:34far more dynamic than we thought.
- 4:36Shifting from Mercury to our planet
- 4:38hunting efforts, NASA's Transiting
- 4:40Exoplanet Survey Satellite, or TESS,
- 4:43recently had a bit of a scare when a
- 4:45command error temporarily knocked it
- 4:47offline. Right, the spacecraft was
- 4:50forced into safe mode after an
- 4:52unexpected command error caused its
- 4:53solar panels to misalign with the sun.
- 4:56This misalignment had serious
- 4:58consequences because the panels were
- 5:00unable to charge Tessa's batteries,
- 5:02leading to a low power condition that
- 5:04triggered the automatic transition to
- 5:05safe mode. In safe mode, all
- 5:08non-essential systems are turned off to
- 5:10conserve power, and the spacecraft
- 5:12awaits further instructions from ground
- 5:14controllers. NASA engineers quickly work
- 5:16to resolve the issue. And fortunately,
- 5:18TESS safe mode performed as intended,
- 5:21protecting the spacecraft from permanent
- 5:23damage. This incident is actually
- 5:25reminiscent of past missing failures.
- 5:28Remember Viking 1 back in 1982? A faulty
- 5:31command caused the loss of communication
- 5:34and there was that catastrophic series
- 5:36of events that nearly destroyed the SOHO
- 5:38probe in 1998. But unlike those cases,
- 5:42TESS was fortunate to have safeguards in
- 5:44place.
- 5:45>> Exactly. The spacecraft's automatic safe
- 5:47mode kicked in when the power situation
- 5:49became critical. The safe mode is
- 5:52designed to preserve the spacecraft's
- 5:53core functions such as attitude control
- 5:56and ensure it can be reactivated once
- 5:58engineers identify and address the
- 6:00issue. According to NASA, the mission
- 6:02team is now reviewing and updating
- 6:04procedures to prevent this command error
- 6:06from happening in the future. It's a
- 6:08good reminder that even with advanced
- 6:10technology, human error remains a
- 6:12significant challenge in space
- 6:14operations.
- 6:15>> Absolutely. While Tessa's recovery was
- 6:18successful and demonstrates how far
- 6:20space mission technology has come, this
- 6:22incident emphasizes the need for
- 6:24continued vigilance in mission planning.
- 6:26The risk of human error is always there
- 6:29and the consequences can be costly in
- 6:31terms of both time and resources.
- 6:33>> The good news is that TESS is back
- 6:35online and continuing its important work
- 6:38of hunting for exoplanets, which brings
- 6:40us nicely to our next story about a
- 6:42newly discovered Earthlike world.
- 6:45Speaking of exoplanets, astronomers have
- 6:47just discovered what might be one of the
- 6:49closest things we have to Earth's twin,
- 6:52though it's considerably colder than our
- 6:54home planet. The exoplanet is called
- 6:56HD137010b,
- 7:00and it's located 146 lighty years away.
- 7:03It's slightly larger than Earth and
- 7:05orbits a star that resembles our sun.
- 7:07However, despite its similarities to
- 7:09Earth in terms of size and orbital
- 7:11period, its surface could be far colder
- 7:14than even Mars, potentially reaching a
- 7:16frigid -90° F or -68° C.
- 7:22>> This discovery was published in the
- 7:24astrophysical journal Letters and was
- 7:26made by an international team led by
- 7:29Alexander Venner. The search for
- 7:31Earthlike exoplanets has been a central
- 7:34focus of astronomical research for over
- 7:37three decades now. Dr. Hang, a key
- 7:40member of the research team, explained
- 7:41it well when he said, "Since the
- 7:43discovery of the first exoplanet 30
- 7:45years ago, we've always tried to find
- 7:48Earth's Trin. HD137010b
- 7:51could bring us closer to that goal,
- 7:53although it's not an exact match. The
- 7:56planet is positioned in what astronomers
- 7:58call the habitable zone of its star,
- 8:00which is the area where water could
- 8:02potentially exist in liquid form, which
- 8:04is crucial for life as we know it.
- 8:06However, there's a major obstacle.
- 8:09>> Right? The star HD137010b
- 8:14orbits is cooler and dimmer than our
- 8:16sun, meaning the planet receives only a
- 8:19fraction of the energy Earth does. This
- 8:22could result in surface temperatures as
- 8:24low as -90° F, making it one of the
- 8:28coldest exoplanets discovered in recent
- 8:30years. But scientists remain hopeful.
- 8:34Dr. Venner pointed out that while the
- 8:35planet's surface might be frozen, it
- 8:38could still fall within the broader
- 8:39optimistic habitable zone of its star.
- 8:42With the right atmospheric conditions,
- 8:44HD137010b
- 8:47might not be as inhospitable as its
- 8:49temperature suggests. One of the
- 8:52challenges of studying this planet is
- 8:54its orbital distance from its star,
- 8:56which is similar to Earth's, but much
- 8:58farther than the typical exoplanets that
- 9:00are easier to observe. Transits, when
- 9:03the planet crosses in front of its star,
- 9:05happen less frequently, making it harder
- 9:08to confirm the planet's existence.
- 9:10>> The discovery was made from a single
- 9:12transit captured by NASA's Kepler Space
- 9:15Telescope. Further confirmation of the
- 9:17planet's existence and detailed analysis
- 9:19of its mass and atmosphere will require
- 9:22more data, which might not be possible
- 9:24until the next generation of telescopes
- 9:26become operational.
- 9:28>> It's an exciting discovery that adds to
- 9:30our understanding of the types of
- 9:32environments where life could
- 9:33potentially exist beyond our solar
- 9:36system. Even if HD137010B
- 9:41is too cold for life as we know it, it
- 9:43teaches us valuable lessons about
- 9:45planetary habitability.
- 9:47>> Now, let's turn our attention back to
- 9:49Earth orbit and the International Space
- 9:52Station. NASA has announced an earlier
- 9:54than expected target date to launch the
- 9:56next astronauts to the ISS.
- 9:59>> That's right. The agency is now
- 10:01targeting February 11th for liftoff of
- 10:04Space X Crew 12 mission, which will fly
- 10:07four astronauts to join the skeleton
- 10:09crew presently operating the orbital
- 10:11laboratory. That's 4 days earlier than
- 10:14originally planned.
- 10:16>> Just to give everyone context, currently
- 10:18only three crew members are covering the
- 10:20maintenance and science investigations
- 10:22aboard the ISS. They were left behind on
- 10:25January 14th by the early departure of
- 10:27crew 11 on the station's first ever
- 10:30medical evacuation. The crew 12
- 10:33astronauts were already in line to take
- 10:35the crew 11's quartet's place, but they
- 10:38had originally been scheduled to overlap
- 10:40with them before their return to Earth.
- 10:43SpaceX and NASA had originally targeted
- 10:45February 15th for Crew 12's launch, but
- 10:48managed to get the mission's Crew Dragon
- 10:50spacecraft and Falcon 9 rocket ready
- 10:53ahead of schedule.
- 10:54>> The Crew 12 team includes NASA
- 10:57astronauts Jessica Mir, who's the
- 10:59mission commander, and Jack Hathaway as
- 11:02pilot. The mission specialists are
- 11:04Sophie Adinot of the European Space
- 11:07Agency, and Ross Cosmos cosminaut Andre
- 11:10Fedyv. Interestingly, Fedyav was a
- 11:13relatively late replacement for
- 11:15cosminaut Alleg Ardmiv, who was pulled
- 11:18off crew 12 in early December, possibly
- 11:20for violating US national security
- 11:23regulations. This quartet will fly the
- 11:26Crew Dragon capsule named Grace to the
- 11:28ISS for a longer than normal assignment
- 11:31lasting 9 months instead of the typical
- 11:336 months. It'll be the second space
- 11:35flight for both Mayor and Fedyav, while
- 11:38Hathaway and Adeno are both spaceflight
- 11:41rookies headed to orbit for the first
- 11:42time. The launch window opens on
- 11:45February 11th at 6:00 a.m. Eastern time
- 11:48from launch complex 40 at Cape Canaveral
- 11:50Space Force Station in Florida. If they
- 11:53don't manage to launch that day, there
- 11:55are backup opportunities on February
- 11:5712th and 13th. The crew 12 astronauts
- 12:00will join NASA Chris Williams and
- 12:02cosminauts Sergey Kuds Verskovv and
- 12:05Serge Mikayv as part of ISS expedition
- 12:0874 which will eventually transition to
- 12:11expedition 75 before the end of crew
- 12:1412's rotation. It's great to see the
- 12:16relief crew heading up sooner to help
- 12:18out the skeleton crew currently managing
- 12:20the station.
- 12:22>> Now for something truly mindbending.
- 12:24Astronomers have confirmed the first
- 12:27runaway super massive black hole, and
- 12:29it's leaving quite a trail behind it.
- 12:32>> This is wild stuff, Anna. The black hole
- 12:35was identified by a 200,000 light-year
- 12:37tail and a supersonic bow shock in the
- 12:40cosmic owl galaxy, which is actually a
- 12:43pair of ring galaxies about 8.8 billion
- 12:46lightyears away. The rings appear as owl
- 12:48eyes as they get closer and closer to
- 12:50merging. The research led by Peter von
- 12:53Dakam from Yale's astronomy department
- 12:56was confirmed using observations from
- 12:58the James Webb Space Telescope. The
- 13:01central proposal is that this linear
- 13:03feature is the wake behind a runaway
- 13:06super massive black hole and this is
- 13:08strongly supported by their analysis.
- 13:11>> But how does something weighing
- 13:12potentially millions or even billions of
- 13:14times the mass of our sun get kicked out
- 13:16of a galaxy? The answer lies in galaxy
- 13:19mergers. When big galaxies collide and
- 13:22merge, they force the black holes at
- 13:24their respective centers into close
- 13:26proximity.
- 13:27>> Right? If two black holes become locked
- 13:29in a gravitational dance and then a
- 13:31third crashes in from another emerging
- 13:33galaxy, the resulting instability can
- 13:36hurl one of the trio away at sufficient
- 13:38speed to exit the host galaxy entirely.
- 13:42This can happen through two main
- 13:43mechanisms.
- 13:44>> The first is gravitational wave recoil.
- 13:47When black holes merge, they emitate
- 13:49gravitational waves that can give the
- 13:51resulting black hole a velocity boost of
- 13:54up to several thousand km/s,
- 13:56propelling it away from the galactic
- 13:58center.
- 13:59>> The second mechanism is the classical
- 14:01slingshot scenario. In this case, a
- 14:04longived binary black hole forms through
- 14:06a merger of two galaxies. When a third
- 14:09super massive black hole is introduced
- 14:11in a second merger, the threebody
- 14:13interaction can eject one of the black
- 14:15holes, usually the lightest one.
- 14:18>> What's particularly striking about this
- 14:20confirmed runaway black hole is the
- 14:22trail it leaves behind. As the black
- 14:24hole plows through intergalactic space,
- 14:26it compresses tenuous gas in front of
- 14:28it, which precipitates the birth of hot
- 14:31blue stars. This creates a 200,000
- 14:34lightyear long contrail of young stars.
- 14:37The black hole also generates a bow
- 14:39shock at the head of this week.
- 14:41Something the researchers predicted
- 14:42based on shock models. From the ages of
- 14:45the stars in the trail, they deduced
- 14:47that the black hole escaped about 40
- 14:49million years ago and is barreling
- 14:51through space at roughly 1,600 km per
- 14:54second.
- 14:55>> To put that in perspective, that's fast
- 14:57enough to travel from Earth to the moon
- 14:59in about 14 minutes. It's an incredible
- 15:02speed for something so massive. Recent
- 15:05papers have shown images of surprisingly
- 15:07straight streaks of stars within
- 15:09galaxies that seem to be convincing
- 15:11evidence for runaway black holes. One
- 15:14paper describes a very distant galaxy
- 15:16imaged by James Webb with a bright
- 15:18contrail suggesting a black hole with a
- 15:21mass 10 million times the mass of the
- 15:23sun.
- 15:24>> It's a reminder that the universe is
- 15:26even more dynamic and violent than we
- 15:28often imagine. These behemoths aren't
- 15:30just sitting quietly at the centers of
- 15:32galaxies. Some of them are literally
- 15:34tearing through space, creating new
- 15:36stars in their wake.
- 15:37>> And finally, let's talk about an
- 15:39upcoming event that has both exciting
- 15:42scientific potential and some concerning
- 15:45risks. On December 22nd, 2032, asteroid
- 15:492024 YR4 has a 4% chance of actually
- 15:54striking the moon.
- 15:55>> A 4% chance might not sound like much,
- 15:58but it's definitely non-negligible. If
- 16:01this collision does happen, it will
- 16:03release enough energy to be the
- 16:05equivalent of smacking our nearest
- 16:07neighbor with a medium-sized thermal
- 16:09nuclear weapon. It would be six orders
- 16:11of magnitude more powerful than the last
- 16:13major impact on the moon, which happened
- 16:16back in 2013.
- 16:17>> A new paper from Yeon Hei of Chin Wua
- 16:20University looks at the potential
- 16:22scientific opportunities if this
- 16:23collision occurs. And while they can
- 16:25simulate models of how the impact will
- 16:28go, monitoring it as it happens will
- 16:30provide never before collected actual
- 16:32data that's infeasible to get any other
- 16:35way.
- 16:35>> The impact would vaporize rock and
- 16:37plasma and would be clearly visible from
- 16:39the Pacific region where it will be
- 16:42nighttime during the impact. Even days
- 16:44after the impact, the melt pool of the
- 16:46impacted material will still be cooling,
- 16:49allowing infrared observers like the
- 16:51James Web Space Telescope to capture
- 16:53plenty of data. The impact should form a
- 16:55crater roughly 1 kilometer wide and 150
- 16:59to 260 m deep with a 100 meter pool of
- 17:03molten rock at the center. Comparing it
- 17:06in size to other craters scattered
- 17:08around the moon will help us understand
- 17:10its bombardment history.
- 17:12>> The impact will also set off a global
- 17:14moon quake of magnitude 5.0. That would
- 17:17be the strongest moonquake yet detected
- 17:19by any seismometer on the moon. Watching
- 17:22the propagation of the moonquake will
- 17:24shine a light on the moon's interior and
- 17:26help researchers understand its
- 17:28composition.
- 17:28>> And here's where it gets really
- 17:30spectacular. A final piece of the
- 17:32scientific puzzle will be the debris
- 17:34field created by the blast. Up to 400 kg
- 17:38of lunar material is expected to survive
- 17:41re-entry to Earth, creating essentially
- 17:43a free largecale lunar sample return
- 17:46mission. At its peak, right around
- 17:48Christmas of 2032, simulations expect up
- 17:51to 20 million meteors per hour to hit
- 17:54our atmosphere, at least on the leading
- 17:56edge of the planet. Most of them would
- 17:58have naked eye visibility, including
- 17:59some 100 to 400 fireballs per hour. But
- 18:03there is a downside to all of this. That
- 18:06400 kg of meteors has to land somewhere.
- 18:09And it looks like the crosshairs fall
- 18:11squarely on South America, North Africa,
- 18:13and the Arabian Peninsula. A few
- 18:16kilograms of space rock falling on Dubai
- 18:18could certainly cause some damage.
- 18:20>> Perhaps more dangerous is the risk of
- 18:22satellite mega constellations that play
- 18:24such an important role in our modern-day
- 18:26navigation and internet systems. Such an
- 18:29event could trigger Kesler syndrome and
- 18:31bring the entire network down over the
- 18:34span of a few short years while also
- 18:36locking us out from being able to get
- 18:38anything else safely into orbit for much
- 18:40longer. Due to the risks, some space
- 18:43agencies are already considering a
- 18:44deflection mission that would bump
- 18:46asteroid 2024 YR4 out of the way of a
- 18:50potential lunar collision. But that
- 18:52hasn't been set in stone yet. Neither
- 18:54has the actual impact itself with only a
- 18:574% chance of happening. If the odds
- 18:59increase over the coming years, we as a
- 19:02species will have to decide whether it's
- 19:04worth it to deflect it or not. If we do,
- 19:07we might miss out on a whole bunch of
- 19:08cool science, but we also might save our
- 19:11entire orbital infrastructure and the
- 19:13few lives directly to boot.
- 19:14>> And that wraps up today's episode of
- 19:16Astronomy Daily. From Mercury's
- 19:19surprising activity to a possible lunar
- 19:21impact in our future, space continues to
- 19:24surprise and amaze us.
- 19:26>> Thanks for joining us today. For more
- 19:28space news and to explore our archive of
- 19:30episodes, visit our website at
- 19:31astronomydaily.io.
- 19:34You can also find us on social media at
- 19:36Astro Daily Pod on X, Facebook,
- 19:39Instagram, and YouTube.
- 19:40>> If you enjoyed today's show, please
- 19:42subscribe on your favorite podcast
- 19:43platform and leave us a review. It
- 19:45really helps other space enthusiasts
- 19:47find us.
- 19:48>> Until next time, keep looking up.
- 19:50>> Clear skies, everyone. Astronomy [music]
- 19:53day. [singing]
- 19:55Stories been told.
- 20:03Stories to tell.
- 20:11[singing]