Latest / Space News Today / From VLEO Satellites to Black Hole Breakthroughs: Your Daily Space Update
Transcript
- 0:00Hello and welcome to [music] Astronomy
- 0:02Daily. Give us 10 minutes and we'll give
- 0:04you the universe. I'm Anna [music] and
- 0:06with me as always is my co-host Avery.
- 0:09Hey Avery, it's January 5th, [music]
- 0:112026. Hope everyone's having a fantastic
- 0:14start to the year. We've already seen
- 0:16some [music] exciting launches and sky
- 0:18events kicking off and I'm pumped for
- 0:20what's ahead.
- 0:21>> Hi Anna, and a big hello to all our
- 0:23listeners out there exploring [music]
- 0:24the cosmos with us. Absolutely. 2026 is
- 0:28buzzing right from the get- go. Today,
- 0:30we've lined up six intriguing [music]
- 0:32stories. From cuttingedge tech for
- 0:34satellites hugging Earth closer than
- 0:35ever before, [music] to a mission
- 0:37finally orbiting the scorched world of
- 0:40Mercury, black holes confirming
- 0:42Einstein's [music] wild predictions, a
- 0:44speedy SpaceX launch, NASA's clever
- 0:47waiting game for Mars probes, and the
- 0:49sharpest [music] X-ray peak yet at a
- 0:51spinning black hole beast. We'll dive
- 0:54deep, discuss the science, and share our
- 0:56thoughts. Let's jump in.
- 0:58>> First story of the day is all about
- 1:00pushing the boundaries of satellite
- 1:02orbits. We're talking about very low
- 1:04Earth orbit or VLEO satellites, which
- 1:07zip around at altitudes between 100 and
- 1:10400 km above Earth. That's a lot closer
- 1:14than the usual low Earth orbit stuff,
- 1:16which can go up to 2,000 km. Avery, why
- 1:20go so low? And what makes this the next
- 1:22frontier?
- 1:24>> Great question, Anna. The advantages are
- 1:26pretty compelling. At these lower
- 1:28heights, satellites can capture much
- 1:30sharper images for Earth observation.
- 1:32Imagine superdetailed views that boost
- 1:35agriculture by spotting crop health
- 1:37issues early. Enhance climate monitoring
- 1:39with precise data on deforestation or
- 1:42ice melt. Aid in disaster response like
- 1:45tracking wildfires or floods in real
- 1:47time, and even support military
- 1:49reconnaissance with crystalclear intel.
- 1:52On the communication side, the lower
- 1:54altitude means reduced signal latency.
- 1:56Think faster internet and more
- 1:58responsive networks. Weather forecasting
- 2:00gets an upgrade, too, with better
- 2:02resolution on cloud formations and
- 2:04atmospheric layers.
- 2:05>> Sounds revolutionary, but I bet there
- 2:08are challenges. The atmosphere doesn't
- 2:10just vanish at 100 km. There's still
- 2:13enough air to cause serious drag, right?
- 2:16Satellites could spiral down and burn up
- 2:18in mere days without some kind of
- 2:20constant boost.
- 2:22>> Spot atmospheric drag is the big hurdle
- 2:25along with corrosion from atomic oxygen.
- 2:28That's highly reactive stuff that eats
- 2:30away at materials and intense heating
- 2:32from friction pushing temperatures
- 2:34beyond 1,500° C. To combat this,
- 2:38engineers are developing innovative
- 2:40propulsion systems like air breathing
- 2:42electric thrusters. These scoop up
- 2:44sparse atmospheric molecules and ionize
- 2:46them for thrust. For example,
- 2:48researchers at Penn State are
- 2:50experimenting with microwave plasma
- 2:52technology, while DARPA's Otter program,
- 2:54partnered with Redwire, is testing
- 2:56similar concepts. It's like giving
- 2:59satellites a way to breathe the air
- 3:00they're flying through. And with orbits
- 3:02like LEO getting increasingly congested,
- 3:05Starlink has over 6,000 satellites
- 3:08alone, plus competitors, VLEO could open
- 3:11up new real estate in space, reducing
- 3:14collision risks up higher. Investments
- 3:17are skyrocketing with projections in the
- 3:19hundreds of billions over the coming
- 3:21decade. Right now, it's mostly
- 3:23prototypes and demos, but companies like
- 3:25Earth Observant and Albido are leading
- 3:28the charge. This could really change how
- 3:30we monitor our planet and connect
- 3:32globally.
- 3:33>> No doubt. It's exciting to think about
- 3:35the applications. Closer orbits mean
- 3:37better data, and who knows what
- 3:39breakthrough that'll lead to in
- 3:40environmental science or urban planning.
- 3:43>> Moving on to our second story. After a
- 3:45long journey, the Bey Columbo mission is
- 3:48poised to enter orbit around Mercury
- 3:50later this year in the second half of
- 3:522026. This is a collaborative effort
- 3:55between the European Space Agency, ESA,
- 3:59and Japan Aerospace Exploration Agency,
- 4:01JAXA, launched way back in October 2018.
- 4:05It features two orbiters. USA's Mercury
- 4:09Planetary Orbiter focused on the
- 4:11planet's surface, composition, and
- 4:13interior structure, and JAXA's MEO,
- 4:16which will study the magnetic field,
- 4:18magnetosphere, and thin exosphere.
- 4:21>> Mercury is one of the trickiest planets
- 4:23to reach because of its proximity to the
- 4:26sun. The gravity pole is immense, so you
- 4:29need a lot of energy to slow down and
- 4:31get captured into orbit. Bey Columbo has
- 4:34been using a series of gravity assist
- 4:37flybys. Earth once, Venus twice, and
- 4:40Mercury itself six times to bleed off
- 4:43speed without guzzling fuel. The
- 4:46planet's extreme environment adds to the
- 4:48challenge. Surface temperature swings
- 4:50from -173°
- 4:53C at night to 427°
- 4:57C during the day. It has an eccentric
- 4:59orbit, a massive iron core making up 60%
- 5:03of its mass, and a surprisingly active
- 5:06magnetic field despite its small size.
- 5:09>> Once in orbit, it'll provide
- 5:11groundbreaking data like the first ever
- 5:13X-ray fluoresence maps of another
- 5:15planet's surface. that'll reveal
- 5:17elemental compositions, things like
- 5:19magnesium, aluminum, silicon in
- 5:22unprecedented detail, helping us
- 5:24understand Mercury's volcanic history
- 5:27and custal evolution. We'll also get
- 5:30better insights into its tenuous
- 5:31atmosphere and how solar wind interacts
- 5:34with the magnetosphere.
- 5:36>> Comparing this to data from Earth, Mars,
- 5:39and the moon will refine our models of
- 5:41inner solar system planet formation. The
- 5:44instruments are state-of-the-art, but
- 5:46after eight years in space, the teams
- 5:49will be holding their breath during
- 5:50activation. If all goes well, it'll
- 5:53operate for at least a year with
- 5:55possible extensions.
- 5:56>> I'm eager for those close-up views and
- 5:58what they tell us about the sun's
- 6:00closest companion. It's been a patient
- 6:02wait, but science like this is worth it.
- 6:05>> Absolutely. Now for something that bends
- 6:08the mind and spaceime itself,
- 6:11astronomers have caught a black hole in
- 6:13the act of twisting the fabric of
- 6:16reality, exactly as Albert Einstein
- 6:18predicted back in 1918 with his general
- 6:21theory of relativity. This is the lens
- 6:24theoring effect, also known as frame
- 6:27dragging, where a spinning massive
- 6:29object warps spaceime around it. The
- 6:32observation comes from a title
- 6:34disruption event dubbed AT2020 AFHD
- 6:38where a super massive black hole
- 6:40shredded a passing star creating a
- 6:43swirling accretion disc of hot gas and
- 6:46launching powerful jets. Using X-ray
- 6:49data from NASA's Neil Gerald Swift
- 6:51Observatory and radio observations from
- 6:53the Very Large Array in New Mexico, the
- 6:56team detected the disc and one jet
- 6:58precessing or wobbling in unison every
- 7:0120 days. That wobble is the direct
- 7:04result of the black hole spin dragging
- 7:07spaceime like a vortex.
- 7:09>> These events are rare. Tidal disruptions
- 7:12happen maybe once in every 10,000 to a
- 7:15100,000 years per galaxy. And catching
- 7:18the repeating signals needed for this
- 7:20measurement is even tougher. It not only
- 7:22confirms general relativity in one of
- 7:25the most extreme environments, but also
- 7:27gives us a new tool to precisely measure
- 7:30black hole spins. Understanding spin
- 7:33helps explain how these monsters power
- 7:36jets that can stretch across galaxies
- 7:39and influence star formation.
- 7:41>> It's incredible. Einstein's equations
- 7:44scribbled over a century ago still hold
- 7:46up under scrutiny from modern
- 7:48telescopes. This could lead to more
- 7:50detections as we get better at spotting
- 7:52these quasi periodic eruptions.
- 7:54>> On to launches. SpaceX is keeping the
- 7:57momentum from 2025. Just yesterday on
- 8:00January 4th at 1:48 a.m. Eastern time,
- 8:04they sent up a fresh Falcon 9 from Space
- 8:07Launch Complex 40 at Cape Canaveral
- 8:10Space Force Station for the Starlink
- 8:12Group 688 mission.
- 8:13>> The rocket carried 29 nextG Starlink
- 8:17satellites into low Earth orbit,
- 8:19deploying them successfully about an
- 8:21hour after liftoff. This was the debut
- 8:24for booster B1081,
- 8:27which nailed its landing on the drone
- 8:29ship, Just Read the Instructions in the
- 8:31Atlantic. These satellites are part of
- 8:34the expanding constellation aimed at
- 8:36global broadband coverage with
- 8:38improvements in speed and coverage.
- 8:41>> This marks SpaceX's second launch of
- 8:442026 already, following closely after
- 8:47their first one earlier in the week.
- 8:49With over 165 launches last year,
- 8:52they're on track to beat that record.
- 8:54The reliability of Falcon 9 continues to
- 8:57impress, enabling more frequent and
- 9:00affordable access to space.
- 9:01>> Indeed, it's democratizing orbit in ways
- 9:04we couldn't imagine a decade ago.
- 9:06>> Our fifth story involves a bit of cosmic
- 9:09patience. NASA's escapade mission to
- 9:12Mars. The twin probes named Blue and
- 9:15Gold for Escape and Plasma Acceleration
- 9:18and Dynamics Explorers blasted off
- 9:21aboard Blue Origin's New Glenn rocket in
- 9:24November 2025.
- 9:26>> Their goal is to investigate how the
- 9:28solar wind erodess Mars' atmosphere, a
- 9:31process that stripped away much of the
- 9:33planet's air over 4 billion years,
- 9:36turning it from potentially habitable to
- 9:38the barren world we see today. By
- 9:41measuring plasma flows, magnetic fields,
- 9:43and ion escape rates from two vantage
- 9:46points, they'll provide a 3D view of
- 9:48this interaction. But here's the twist.
- 9:52They're not rushing straight to Mars.
- 9:54Due to planetary alignment at launch,
- 9:56they're spending about a year in a halo
- 9:58orbit around Earth's Lrangee point 2,
- 10:01roughly a million miles away on the far
- 10:04side from the sun. This stable kidney
- 10:07bean-shaped path conserves fuel while
- 10:09waiting for the optimal window.
- 10:11>> In fall 2026, they'll ignite their
- 10:14thrusters for a trajectory adjustment,
- 10:16using Earth's gravity for a slingshot to
- 10:19Mars, arriving in September 2027.
- 10:22Science operations kick off shortly
- 10:24after, lasting at least a year. The dual
- 10:27probe setup adds redundancy. If one
- 10:30fails, the other can still deliver key
- 10:32data.
- 10:33This flexible design expands launch
- 10:35opportunities beyond the every 26 months
- 10:38home and transfer windows, making Mars
- 10:40missions more feasible. It's a smart
- 10:43blend of orbital mechanics and
- 10:44engineering.
- 10:46>> Patience in space pays dividends.
- 10:48Reminds me of how Voyager probes are
- 10:50still going strong after decades.
- 10:53Last but not least, the X-ray imaging
- 10:56and spectroscopy mission or XRISM
- 11:00has given us the clearest X-ray spectrum
- 11:02yet of a fast spinning super massive
- 11:04black hole in the active galaxy
- 11:07MCG-6-30-15.
- 11:11Located 121 million light-years away in
- 11:14the constellation Aquarius,
- 11:16>> this black hole weighing in at about 2
- 11:19million solar masses is accreing
- 11:22material at a furious pace. XRISM's
- 11:26resolve spectrometer captured a broad
- 11:28asymmetric iron K alpha emission line
- 11:32distorted by relativistic effects near
- 11:35the event horizon where gas orbits at
- 11:38nearly light speed. By combining this
- 11:40with archival data from ISSA's XMM
- 11:43Newton and NASA's New Star, astronomers
- 11:46dissected the spectrum into components
- 11:49from the inner accretion disc and outer
- 11:51regions.
- 11:52>> They identified five distinct zones in
- 11:55an outflowing wind, plus a hot corona
- 11:58above the disc. Remarkably, the
- 12:01reflection signal from gas perilously
- 12:03close to the black hole is 50 times
- 12:06brighter than from distant material,
- 12:08confirming the hole's high spin rate,
- 12:11likely close to the maximum allowed by
- 12:13physics. This spin influences how
- 12:15efficiently black holes accrete mass and
- 12:18eject jets. These insights help unravel
- 12:21how super massive black holes co-evolve
- 12:24with their host galaxies. Whether
- 12:26through steady accretion or violent
- 12:29gorggers XM
- 12:32a Jaxa NASA collaboration with ISSA
- 12:35input is setting new standards in high
- 12:38energy astrophysics with its microc
- 12:41calarimeter technology.
- 12:43>> It's transforming our view of the hot
- 12:45and energetic universe one spectrum at a
- 12:48time. Wow, what an episode packed with
- 12:51innovation, discovery, and cosmic
- 12:53wonders. From VLEO sats redefining Earth
- 12:57observation to XRISM's
- 13:00black hole revelations, it's a thrilling
- 13:03time to be following space news.
- 13:05>> Couldn't agree more. Thanks for tuning
- 13:07in to Astronomy Daily. We love sharing
- 13:10these stories with you. If you're
- 13:11enjoying the show, please subscribe,
- 13:13leave a review, or tell a friend. It
- 13:15helps us grow and reach more stargazers.
- 13:18>> We'll catch you tomorrow with the latest
- 13:20updates. Until then, keep wondering
- 13:22about the universe. Clear skies,
- 13:24everyone.
- 13:25>> Astronomy [music and singing]
- 13:28stories.
- 13:36Stories. [music]
- 13:44Story told.