Jan. 25, 2025

Tesla Asteroids, Lunar Gravity Breakthroughs, and Black Hole Feeding Frenzies: S04E22

Tesla Asteroids, Lunar Gravity Breakthroughs, and Black Hole Feeding Frenzies: S04E22

Astronomy Daily - The Podcast: S04E22
In this episode of Astronomy Daily, host Anna takes you on a journey through the latest and most intriguing stories from the cosmos. From humorous mix-ups involving Elon Musk's Tesla Roadster to groundbreaking...

Season 2
Astronomy Daily - The Podcast: S04E22
In this episode of Astronomy Daily, host Anna takes you on a journey through the latest and most intriguing stories from the cosmos. From humorous mix-ups involving Elon Musk's Tesla Roadster to groundbreaking lunar experiments, this episode is packed with fascinating insights and updates that will pique your interest in space exploration.
Highlights:
- Elon Musk's Tesla Roadster Mistaken for Asteroid: Discover the amusing case of mistaken identity as astronomers at Harvard's Minor Planet Center initially classified Musk's orbiting vehicle as a new asteroid, only to realize their error shortly after.
- Blue Origin's Lunar Gravity Simulation: Learn about Blue Origin's upcoming New Shepard flight, which will simulate lunar gravity conditions for an unprecedented two minutes, paving the way for future moon missions.
- NASA Tackles Moon Dust: Explore NASA's new Blue Ghost Mission, which aims to address the challenges of lunar regolith with innovative technologies like the Electrodynamic Dust Shield and a stereo camera for studying rocket plume interactions.
- Astronaut Health Concerns: Delve into a recent study revealing significant changes in astronauts' vision after long-duration stays aboard the ISS, raising questions about the effects of microgravity on human health.
- M M87* Black Hole Observations: Get the latest on the M M87 black hole, as new data reveals intriguing details about its feeding habits and the turbulent plasma surrounding it, further validating Einstein's theory of general relativity.
- Upcoming Celestial Events: Mark your calendars for a spectacular February, featuring Venus and Saturn in a stunning alignment, along with opportunities to observe their unique characteristics through telescopes.
For more cosmic updates, visit our website at astronomydaily.io. Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, Tumblr, and TikTok. Share your thoughts and connect with fellow space enthusiasts. Don't forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.
Thank you for tuning in. This is Anna signing off. Until next time, keep looking up and stay curious about the wonders of our universe.
00:00 - Astronomy Daily brings you the latest in space news
00:50 - Elon Musk's Tesla Roadster mistakenly classified as an asteroid
03:20 - Blue Origin prepares for lunar gravity simulation with New Shepard
06:15 - NASA's Blue Ghost Mission tackles lunar dust challenges
09:30 - Study reveals vision changes in astronauts after ISS missions
12:20 - New insights into M M87 black hole's feeding dynamics
15:00 - February celestial events featuring Venus and Saturn
✍️ Episode References
Harvard Smithsonian Center for Astrophysics
[Harvard](https://www.cfa.harvard.edu)
Blue Origin
[Blue Origin](https://www.blueorigin.com)
NASA
[NASA](https://www.nasa.gov)
Event Horizon Telescope
[EHT](https://eventhorizontelescope.org)
Astronomy Daily
[Astronomy Daily](https://www.astronomydaily.io)

Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-the-podcast--5648921/support.
WEBVTT

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Welcome to Astronomy Daily. Today, we're diving into an incredible

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lineup of space news that showcases both the fascinating and

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sometimes humorous side of space exploration. From a case of

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mistaken identity involving Elon Musk's orbiting Tesla Roadster to groundbreaking

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lunar gravity experiments, we've got an action packed episode ahead.

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We'll explore new concerns about astronaut health in space, take

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a look at the latest observations of the famous M

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eighty seven black hole, and preview some spectacular celestial alignments

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coming up in our night sky. We'll also discuss NASA's

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innovative approaches to dealing with that pesky moondust problem that's

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been challenging lunar missions since the Apollo era. So get

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ready for your daily dose of space and astronomy news

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as we explore these exciting developments that are shaping our

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understanding of the cosmos in a delightful twist of astronomical proportions.

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Elon Musk's Tesla Roadster, launched into space six years ago,

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recently caused quite a stir in the scientific community. Earlier

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this month, astronomers at the prestigious Harvard Smithsonian Center for

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Astrophysics Minor Planet Center mistook the wandering vehicle for a

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newly discovered asteroid, even giving it an official designation twenty

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eighteen CN forty one. The cosmic mix up didn't last long, though.

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Just a day after registering the supposed new asteroid, the

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center had to quickly backtrack when it became clear that

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their mysterious object was actually Musk's space traveling Tesla, which

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had been cruising through space since its launch aboard SpaceX's

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Falcon Heavy rocket in February twenty eighteen. What makes this

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particularly interesting is that the roadster was spotted less than

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one hundred fifty thousand miles from Earth, that's closer than

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the Moon's orbit. Originally intended to travel in an elliptical

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orbit around the Sun, extending just past Mars, the car

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apparently exceeded expectations and ventured further into the asteroid belt.

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This case of mistaken identity highlights a serious challenge in

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space observation, As noted by Center for Astrophysics astrophysicist Jonathan McDowell,

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tracking objects in space isn't always straightforward. In fact, he

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pointed out that in a worst case scenario. You could

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spend a billion dollars launching a space probe to study

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what you think is an asteroid, only to discover upon

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arrival that it's something entirely different. The incident serves as

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a reminder of both the complexity of tracking objects in

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space and the increasing number of human made objects joining

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the natural celestial bodies in our Solar system. Who would

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have thought that one day we'd need to double check

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whether that new asteroid is actually just a luxury electric

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car taking a very, very long road trip. Next up today,

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Blue Origin is gearing up for an exciting milestone in

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space research with their upcoming New Shepherd flight scheduled for

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January twenty eighth. What makes this mission particularly special is

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its innovative approach to simulating lunar gravity, something that could

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revolutionize how we prepare for future Moon missions. Unlike previous

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New Shepherd flights that achieved microgravity, this mission will deliberately

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spin the crew capsule after it separates from its booster

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using reaction control thrusters. The capsule will rotate at approximately

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eleven revolutions per minute, creating conditions that perfectly match the

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Moon's gravity for the payloads inside. This unique capability will

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provide researchers with an unprecedented two minutes of lunar gravity conditions.

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To put that in perspective, current testing methods using parabolic

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aircraft flights can only manage about twenty seconds of simulated

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lunar gravity. The extended duration opens up exciting new possibilities

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for testing lunar technologies and conducting research. The mission will

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carry thirty different payloads, with seventeen of them coming directly

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from NASA through their Flight Opportunities program. These experiments span

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crucial areas for lunar exploration, including resource utilization, dust mitigation,

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advanced habitatation systems, and various spacecraft technologies. One payload will

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even be mounted on the exterior of the new Shepherd

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booster to test how materials react to the space environment.

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What's particularly promising about this development is its potential for

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future applications. Blue Origins CEO Dave Limp has indicated that

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this technology could be adapted to simulate gravity conditions for

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Mars and other celestial bodies in our Solar System. This

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versatility could make it an invaluable tool for preparing for

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human exploration throughout the Solar System. For NASA and other

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lunar technology providers, this new testing platform represents a game

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changing opportunity to accelerate their research and improve technology readiness

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at a fraction of the cost of traditional testing methods.

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It's a significant step forward in our journey back to

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the Moon and beyond. While on the subject of the Moon,

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NASA has just launched an ambitious new mission to tackle

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one of the most persistent challenges of lunar exploration, Moondust.

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The Blue Ghost Mission one recently lifted off from Kennedy

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Space Center carrying two groundbreaking technologies designed to help us

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better understand and manage lunar regolith. One of these innovative

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devices is the Electrodynamic Dust Shield or EDS, which uses

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electric fields to lift, transport, and remove dust particles from surfaces.

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This technology could be a game changer for future lunar missions,

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as Moondust has been a significant headache since the Apollo era,

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causing problems with everything from space suits to essential equipment.

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The mission's second key technology is equally fascinating, the stereo

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camera for Lunar Plume Surface Studies scalps S. This system

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will capture high resolution stereo images of how rocket plumes

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interact with the lunar surface during landing. As we plan

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to land increasingly larger payloads on the Moon, understanding how

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these powerful engines affect the surface becomes crucial. These experiments

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will be conducted in mare Crisium, a massive dark based

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on the Moon's near side, spanning about three hundred miles.

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This location will provide the perfect testing ground for these

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technologies in actual lunar conditions, something that's incredibly difficult to

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replicate accurately on Earth. The timing of this mission couldn't

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be more crucial. As we prepare for more complex lunar operations,

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managing moondust becomes increasingly important. During the Apollo missions, astronauts

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discovered firsthand how problematic this fine abrasive material could be,

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coding everything it touched and potentially damaging sensitive equipment. What's

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particularly exciting is how this research will benefit future Mars

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missions as well. While Martian dust has different properties than

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lunar regalith, the lessons we learn from these experiments will

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be invaluable for designing dust mitigation systems for both worlds.

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It's another excellent example of how lunar exploration serves as

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a crucial testing ground for our eventual journey to the

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Red Planet. A new study published in the IEE Open

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Journal of Engineering in Medicine and Biology has revealed some

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concerning findings about how space affects astronauts' vision. The research

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shows that after just six to twelve months aboard the

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International Space Station, astronauts experienced significant changes to their eyes

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and vision due to the microgravity environment. The findings are

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particularly striking. At least seventy percent of ISS astronauts have

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been affected by what's known as spaceflight associated neuroocular syndrome

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or SANDS. Researchers analyzed data from thirteen astronauts who spent

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between one hundred and fifty seven and one hundred and

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eighty six days in space, and the changes they documented

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were substantial. They found a thirty three percent decrease in

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ocular rigidity and eleven percent drop in intraocular pressure, and

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a twenty five percent reduction in ocular pulse amplitude. These

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changes aren't just numbers on a page. They manifest in

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real symptoms like reduced eye size, altered focal fields, and

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in some cases, even optic nerve swelling and retine. The culprit.

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It appears to be the way weightlessness affects blood distribution

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in the body. In space, blood flow increases to the

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head and slows down in the eye's venous circulation, leading

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to expansion of the choroid, the layer that provides blood

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supply to the retina. The good news is that for

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missions lasting six to twelve months, these changes typically aren't permanent.

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Most astronauts eyes return to normal once they're back on Earth,

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and wearing corrective eyeglasses is usually sufficient to address any

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symptoms developed during their time in space. However, this raises

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serious questions about longer missions, particularly potential trips to Mars.

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Right now, we simply don't know what prolonged exposure to

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microgravity might do to astronaut vision over extended periods, and

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we don't yet have any preventive measures in place. As

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we continue to push the boundaries of space exploration, understanding

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and addressing these health challenges becomes increasingly crucial for the

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future of long duration spaceflight. Okay, I promised you a

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black hole story today, and I found one. The first

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ever black hole to be imaged by humanity, known as

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M eighty seven Star, has revealed some fascinating new details

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about its eating habits, and they're not exactly what you'd

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call neat and tidy. Recent observations from the Event Horizon

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telescope have given us an unprecedented look at the turbulent

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nature of this cosmic giant's feeding patterns. Located fifty five

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million light years away at the heart of the Messier

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eighty seven galaxy, this super massive black hole, weighing in

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at a staggering six point five billion times the mass

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of our Sun, continues to surprise astronomers. By comparing observations

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from twenty seventeen and twenty eighteen, scientists have noticed some

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intriguing changes in the bright ring of superheated gas swirling

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around the black hole's edge. The most striking discovery was

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a thirty degree counterclockwise shift in the brightest section of

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the ring, pointing to significant turbulence in the plasma surrounding

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M eighty seven star. This movement tells us something remarkable

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about how the black hole feeds. The matter appears to

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be flowing inward in the opposite direction to the black

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hole's rotation, creating a complex and dynamic feeding process. What's

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particularly exciting about these findings is how they're helping us

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understand the environment around black holes. The bright ring we

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see isn't just a static feature. It's a dynamic, ever

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changing structure of plasma moving at nearly the speed of light.

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This match is incredibly well with what Einstein's theory of

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general relativity predicted, giving us yet another confirmation of this

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fundamental theory of physics. Using three times more data than

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was available in twenty seventeen, scientists have been able to

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build a much more detailed picture of how M eighty

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seven star interacts with its surrounding environment. These observations are

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helping us understand not just how black holes feed, but

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also how they influence the space around them. As researchers

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continue to analyze data from twenty twenty one and twenty

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twenty two, we're likely to learn even more about the

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complex dynamics of these fascinating cosmic objects. Next up, get

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your telescopes ready. Stargazers are in for a treat this

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February with a spectacular celestial display featuring some of the

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brightest objects in our night sky. Venus, our dazzling sister planet,

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will be putting on quite a show in the southwestern

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sky just after sunset, reaching its peak brilliance around February fourteenth,

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when it will shine at an impressive magnitude of negative

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four point sixty four. The month kicks off with a

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particularly picturesque arrangement in the early evening sky. A young

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crescent moon will gracefully pass between Venus and Saturn on

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February first, creating a beautiful cosmic triangle. The following evening,

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the moon will climb higher to position itself just above Venus,

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offering another stunning photo opportunity for astronomy enthusiasts. Venus will

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reach its highest point in our evening sky on February seventh,

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making it an ice deal time for observation through a telescope.

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You might even catch glimpses of the planet's phase changes

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as its visible illuminated portion shrinks from about thirty seven

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percent to just under fifteen percent throughout the month, while

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its apparent size grows larger as it moves closer to Earth. Saturn,

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though not as bright as Venus, adds its own charm

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to this celestial dance. The ringed planet will be visible

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low in the southwestern sky, shining at magnitude one point one.

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Telescope users might want to take advantage of this opportunity

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to observe Saturn's famous rings, which are currently tilted at

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just two point eight degrees. This is particularly significant as

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the rings are approaching their edge on position, which will

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occur in late March, though unfortunately, this final transition won't

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be visible from Earth due to Saturn's position relative to

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the Sun. Happy stargazing. Well, that wraps up another fascinating

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episode of Astronomy Daily. I'm Anna and I've enjoyed sharrearing

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these amazing space stories with you today. Before we go,

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I want to make sure you know where to find

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all the latest space and astronomy news. Anytime you want it,

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head over to Astronomy Daily dot io, where you'll find

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our constantly updating news feed and can catch up on

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all our previous episodes. We're also very active on social media.

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subscribed wherever you get your podcasts. We're on Spotify, Apple Podcasts, YouTube,

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and pretty much everywhere else you might listen. And remember,

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the universe is constantly revealing new secrets, so keep looking

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up and join us again on Monday when Steven Hallie

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will be here for another journey through the Cosmos on

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Astronomy Daily, and to our Australian listeners, Happy Australia Day.

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The star is the Soul Store is the Soul m