Astronomy and Planetary Science Thread

[NMaude]

Anton Petrov has an interesting what-if video about the possibility of being killed by micro-blackholes:

Hello and welcome! My name is Anton and in this video, we will talk about if it's possible to be killed by a black hole
Links:
https://arxiv.org/pdf/2502.09734https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbFdabnYyeENRVTgyNGVPQWhXend3VzRFcGttUXxBQ3Jtc0ttY2JFWmx0TUVIZktTY3BSWGhjblZNVC0xSkVyUS03X3lXaUJibWVKVWZZSjJ3QXAzNmZDcFlabUlGcW9ITjRWRTdRZEtHdU14cXBuRjhpOTJtQkV4QlVrM3pidWthUElsVE5jY194R0Q1YXlJbmxvTQ&q=https://arxiv.org/pdf/2502.09734&v=neYzkyLHui0
Other videos:

View: https://www.youtube.com/watch?v=fchKB7eldCM

• Stars That Swallowed Microscopic Blac...
https://www.youtube.com/watch?v=W8WlxumOsHU
• Stephen Hawking Proven Wrong - Black ...

• Hawking Radiation Explained - This If...
• Black Hole Experiment Using Sound Cre...
• Major Study Suggests Stephen Hawking ...

View: https://www.youtube.com/watch?v=qhVvihYJBEs&pp=0gcJCR0AztywvtLA

• What Happened in Tunguska in 1908? Ne...
https://www.youtube.com/watch?v=f5Qtna_Ldww
• Invisible Stars Found and Analyzed Us...

View: https://www.youtube.com/watch?v=f5Qtna_Ldww

#blackhole #earth #impacthttps://www.youtube.com/hashtag/impact

0:00 Murder mystery but with black holes
0:40 What are primordial black holes?
4:00 Detecting these black holes
5:50 What if it passes through a person?
6:45 Tidal interactions inside body
8:10 Main problem: shock wave
9:15 Never seen though, so what does it mean?
10:20 Conclusions

 

[Justo Miranda]

It's a Chimpanzee NOT a monkey, Chimps are apes. The easy way to tell whether or not a primate is an Ape or monkey is if it has a tail, Monkeys have tails Apes don't.

To have or not to have, that is the question

 

[Flyaway]

I cannot believe it’s almost thirty years since this announcement was made, where has the time gone!!!

NASA’s Most Controversial Rock:

View: https://youtu.be/2Box8dkz6cQ?si=tkEeQQaFnYS1xdRu

 

[NMaude]

I cannot believe it’s almost thirty years since this announcement was made, where has the time gone!!!

NASA’s Most Controversial Rock:

View: https://youtu.be/2Box8dkz6cQ?si=tkEeQQaFnYS1xdRu

I remember the big flap on the six o'clock news back in the 90s (Hard to believe it's been about 30 years) when NASA made the announcement.

On another note Scott Manley has a video out about the feasibility of using balloons to explore other planets:

What planets and moons have enough atmosphere to be explored via aircraft, and what kind of aircraft work for long term missions. It turns out that balloons are the only option for gas giants, and likely the best option for Venus - places where 'the floor is lava'.

Aside from Venus there also the Gas-giants (Although a balloon-probe in Jupiter would need a LOT of radiation hardening to survive radiation from Jupiter's inner radiation-belt.

Edit: a hydrogen-balloon probe would be good for long-term aerial exploration of Mars.

 

[NMaude]

Astronomers have discovered a potential supermassive blackhole in the Large Magellanic Cloud and it's slinging hypervelocity stars towards the Milky Way galaxy, from NASASpaceNews:

Astronomers may have found a supermassive black hole in the Large Magellanic Cloud, challenging our understanding of galaxy evolution! This discovery, based on hypervelocity stars' trajectories, could mean that small galaxies hide more of these cosmic giants than we thought. Watch to learn how this changes our view of the universe!

Paper link: https://arxiv.org/abs/2502.00102https://www.youtube.com/redirect?ev...ttps://arxiv.org/abs/2502.00102&v=QzBoOHtK4Yk

Chapters:
00:00 Introduction
00:50 Hypervelocity Stars and Their Origins
02:49 Evidence for a Supermassive Black Hole in the LMC
04:39 Implications for Galactic Evolution and Future Research
07:22 Outro
07:45 Enjoy

 

[Flyaway]

WEBB TELESCOPE CAPTURES ITS FIRST DIRECT IMAGES OF CARBON DIOXIDE OUTSIDE SOLAR SYSTEM

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a key target for planet formation studies.

The observations provide strong evidence that the system's four giant planets formed in much the same way as Jupiter and Saturn, by slowly building solid cores. They also confirm Webb can do more than infer atmospheric composition from starlight measurements—it can directly analyze the chemistry of exoplanet atmospheres.

Webb telescope captures its first direct images of carbon dioxide outside solar system

James Webb Space Telescope observations suggest key giant exoplanets likely formed like Jupiter and Saturn

hub.jhu.edu

Related paper:

Radware Bot Manager Captcha

 

[NMaude]

In regards to the recent confirmation that Barnard's star has four closely orbiting terrestrial planets orbiting it Anton Petrov has a new video out:

Hello and welcome! My name is Anton and in this video, we will talk about new discoveries from the Barnard's Star 6 light years away from us
Links:
https://iopscience.iop.org/article/10...https://www.youtube.com/redirect?ev...rticle/10.3847/2041-8213/adb8d5&v=R9AQ6YffF78
https://www.aanda.org/articles/aa/ful...https://www.youtube.com/redirect?ev...4/10/aa51311-24/aa51311-24.html&v=R9AQ6YffF78
https://noirlab.edu/public/images/noi...https://www.youtube.com/redirect?ev...edu/public/images/noirlab2510b/&v=R9AQ6YffF78

Previous video:
https://www.youtube.com/watch?v=QMaCh38PjIY
• Finally! Exciting Planet Found Only 6... https://www.youtube.com/watch?v=QMaCh38PjIY
Proxima Centauri:
https://www.youtube.com/watch?v=pmIWzTJYHMI
• Updates on Proxima B, The Closest Exo...

• Our Neighbor Proxima Centauri Has Ano...

• Closest Star to Us Has Another Small ... https://www.youtube.com/watch?v=TZH3erp4qjs

#barnardsstar #exoplanet #astronomy

0:00 Barnard's star updates!
0:50 Why this star is so exciting
3:50 Flares and their effects
5:20 Barnard B confirmed
6:10 How it was found
7:10 New research and new discoveries: 4 planets!
8:30 What planets these are
10:00 Additional discoveries
10:50 Implications and conclusions

 

[Flyaway]

Dark Energy experiment challenges Einstein's theory of Universe https://www.bbc.com/news/articles/c4geldjjge0o

 

[Archibald]

Hints grow stronger that dark energy changes over time

Latest DESI results fall short of discovery threshold but strengthen evidence for dynamical dark energy.

arstechnica.com

Curiouser and curiouser...

 

[FighterJock]

It will be interesting to see what happens to Dark Energy over the next billion years Archibald whether it weakens or not since it is now dynamical, If it does weaken then the Universe might collapse or bounce depending on what the final Entropy is like in the future.

 

[Flyaway]

NASA Spacecraft Deep Into The Solar System Discovers New Unexpected Mystery

NASA spacecraft far from Earth has made an unexpected discovery, after turning its instruments towards a dark patch of sky at the galactic poles for over 200 hours.

Studying the background light that is illuminating its journey, the New Horizons team discovered it is much brighter than expected, and they don't know why.

NASA Spacecraft Deep Into The Solar System Discovers New Unexpected Mystery

Where is the light coming from?

www.iflscience.com

Related paper:

Excess Ultraviolet Emission at High Galactic Latitudes: A New Horizons View

We present new observations of the cosmic ultraviolet background (CUVB) at high Galactic latitudes ($|b| > 40^{\circ}$), made using the Alice UV spectrograph on board the New Horizons spacecraft. These observations were taken at about 57 AU from the Sun, outside much of the foreground emission...

arxiv.org

 

[Justo Miranda]

Dark matter, dark energy, superstrings... they are nothing more than intellectual constructions "necessary" for the equations that someone has decided should be validated to have meaning. Since the energies necessary to experimentally prove or falsify these intellectual constructions are beyond our present possibilities, it is not scientifically serious to regard these intellectual constructs as anything other than opportunistic shamanism.

A genius is stupid until he's right... but if it is necessary to use the energy of a Dyson sphere to prove it, or falsify it, we had better apply Occam's rule.

https://en.wikipedia.org/wiki/Cumaean_Sibyl

https://en.wikipedia.org/wiki/Cassandra_(metaphor)

 

[FighterJock]

True Justo Miranda, that is why I hate Dark Energy from when it was first announced in the late 1990s.

 

[Justo Miranda]

True Justo Miranda, that is why I hate Dark Energy from when it was first announced in the late 1990s.

"Rocks cannot fall from the sky, because there are no rocks in the sky" - Antoine Lavoisier, 1787. French academy of sciences, father of modern chemistry.

“Now there is nothing new to discover in physics” Albert A. Michelson, Nobel Prize in Physics 1907.

 

[FighterJock]

The last quote has been proven wrong since 1907, there has been plenty of discoveries in Physics in the past centrury since Albert A. Michelson's infamous quote.

 

[Rhinocrates]

Becky Smethurst on the 'Timescapes' model that was proposed to make dark energy unnecessary. I thought that timescapes was quite interesting but she thinks it's not new and while it may be real, according to the numbers, it's not sufficient.

View: https://www.youtube.com/watch?v=JlNVZz5D6WE&ab_channel=Dr.Becky

 

[NMaude]

A couple of interesting videos here from Astro and V101 SPACE:

For decades, scientists believed that gas giants like Jupiter and Saturn took at least 3 to 5 million years to form. But new research from Ohio State University has completely overturned this theory—revealing that these massive planets may emerge in just 1 to 2 million years!
What does this mean for our Solar System?
Could early-forming gas giants disrupt the creation of Earth-like planets?
How does this discovery impact the search for alien life?

In this video, we’ll explore:
How Jupiter may have formed TWICE as fast as expected
The impact of gas giants on planetary evolution and habitability
New models that challenge everything we thought we knew
The implications for exoplanet research and the search for life
Join us as we dive deep into this mind-blowing space discovery—and uncover how this changes everything we know about planetary systems!
What do you think? Could early-forming gas giants be a threat or a necessity for habitable planets like Earth?

Chapters:
00:00 INTRO
01:19 NEW DISCOVERY
04:19 PLANET FORMATION MODELS
07:45 IMPLICATIONS OF THIS DISCOVERY
11:36 CONCLUSION

This is the closest we have ever seen Pluto's Moon Charon!

These are the closest images we’ll likely ever see of Pluto’s giant, weird moon, Charon! Only one spacecraft has ever visited it: NASA’s New Horizons, which captured stunning real images that revealed Charon for what it truly is — a world full of surprises. A place marked by vast chasms, tectonic stretch marks, towering mountains adrift in icy moats, red-stained landscapes, and landslides on a scale unseen anywhere on Earth.

While it may lack Pluto’s dynamic atmosphere and exotic surface chemistry, Charon tells a different kind of story. One of ancient upheaval, violent geological shifts, and lingering mysteries. A moon far more active than anyone expected. So let’s peel back the icy layers of this distant world and take a closer look at its fascinating features like never before. What wonders will we see?

 

[NMaude]

JWST has found a very distant (Re: old) galaxy with large quantities of oxygen present, from Anton Petrov:

Hello and welcome! My name is Anton and in this video, we will talk about the most distant galaxy ever found JADES-GS-z14-0
Links:https://www.youtube.com/redirect?ev...s://arxiv.org/html/2409.20549v2&v=rKoWyBA9Xx8
https://arxiv.org/html/2409.20549v2https://www.youtube.com/redirect?ev...s://arxiv.org/html/2409.20549v2&v=rKoWyBA9Xx8
https://arxiv.org/abs/2405.18462https://www.youtube.com/redirect?ev...ttps://arxiv.org/abs/2405.18462&v=rKoWyBA9Xx8
https://arxiv.org/abs/2502.06016https://www.youtube.com/redirect?ev...ttps://arxiv.org/abs/2502.06016&v=rKoWyBA9Xx8
https://arxiv.org/abs/2502.01610https://www.youtube.com/redirect?ev...ttps://arxiv.org/abs/2502.01610&v=rKoWyBA9Xx8
Previous videos:
https://www.youtube.com/watch?v=5B8-xUabZsw
• Galactic Distance Record Broken Again...

• Best Evidence For Elusive Population ...
https://www.youtube.com/watch?v=V2G5IR9gAqI
• So What Are These Strange Little Red ... https://www.youtube.com/watch?v=V2G5IR9gAqI

#jwst #jameswebbspacetelescope #galaxy

0:00 JADES-GS-z14-0 Updates
0:40 How it was found
2:15 New distance measurements
4:00 What this observations shows us
4:38 Differences between observations and simulations
5:50 MIRI confirms ionized gas and lots of oxygen
7:00 What this suggests
9:05 Thinks don't make sense
9:55 Gas around the galaxy
10:45 Lots of similar galaxies to come

 

[NMaude]

Apparently a massive galactic structure in the Milky Way galaxy may've caused a mass-extinction on Earth 14 million years ago:

Hello and welcome! My name is Anton and in this video, we will talk about the Earth's passage through a structure known as Radcliffe Wave 14 million years ago
Links:
https://www.aanda.org/articles/aa/ful...https://www.youtube.com/redirect?ev...5/02/aa52061-24/aa52061-24.html&v=zJ1j9RBxAUI
https://en.wikipedia.org/wiki/Radclif...https://www.youtube.com/redirect?ev...kipedia.org/wiki/Radcliffe_wave&v=zJ1j9RBxAUI
https://projects.cosmicds.cfa.harvard...https://www.youtube.com/redirect?ev....harvard.edu/radwave-in-motion/&v=zJ1j9RBxAUI
https://medienportal.univie.ac.at/en/...https://www.youtube.com/redirect?ev...ic-journey-of-our-solar-system/&v=zJ1j9RBxAUI
Previous videos:
https://www.youtube.com/watch?v=4IQB1gMFX5U
• Radcliffe Wave Discovery - Huge Struc...

• Giant Wave Structure Inside Our Galax... https://www.youtube.com/watch?v=MzWFJqcwSVQ

#radcliffe #milkyway #solarsystem

0:00 Radcliffe wave updates
0:40 What this wave is
2:40 New study raises new questions
4:00 What this passage probably did to the solar system
5:05 Extinction event 14 million years ago
6:45 What needs to be done next to confirm this
8:25 Conclusions - is this why Antarctica has an ice sheet?

 

[Flyaway]

How the James Webb Space Telescope is helping size up tiny dwarf planets

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping scientists nail down their respective masses, a new study reports.

How the James Webb Space Telescope is helping size up tiny dwarf planets

The relative quantities of volatile gases like methane and ethane can reveal key details about distant Kuiper Belt objects.

www.space.com

Related paper:

https://www.sciencedirect.com/science/article/pii/S0019103525000296?via%3Dihub

 

[NMaude]

Which planet has the best eclipse?

Solar eclipses don't just happen here on earth - moons of other planets also pass between those planets and the sun, resulting in various types of solar eclipses on Mars, Jupiter, Saturn, Uranus, Neptune, and even non-planets like Pluto, Eris and various asteroids. So, where are the best eclipses in the solar system? For that, we need a tier list.

 

[NMaude]

There's a new Cosmic Microwave Background (CMB) map out with interesting new results, from Anton Petrov:

Hello and welcome! My name is Anton and in this video, we will talk about the new map of cosmic microwave background showing more detail than ever before
Links:
https://act.princeton.edu/sites/g/fil...https://www.youtube.com/redirect?ev...iles/documents/act_dr6_lcdm.pdf&v=re0QKuomzQ8
https://act.princeton.edu/sites/g/fil...https://www.youtube.com/redirect?ev.../documents/act_dr6_extended.pdf&v=re0QKuomzQ8
Other videos:
https://www.youtube.com/watch?v=bBO9cjIbwPg
• So Which One Is It? Big Bang Theory o...

• Did James Webb Prove Big Bang Theory ...

• Wow! The Only Video of Big Bang Theor...

• New Studies on Dark Energy Reveal a M...

• Hundreds of Intermediate Black Holes ... https://www.youtube.com/watch?v=SIyeJbbSfpE

#cmb #cosmicmicrowavebackground #cosmology

0:00 New Cosmic Microwave Background map is out!
0:48 History of CMB discoveries and what it basically is
4:40 Most accurate map ever!
6:00 Shows us motion of gas!
6:50 Big disappointment though
8:40 Confirmation of major theories
9:15 What we are seeing here
11:20 Conclusions and what's next?

 

[Grey Havoc]

‘Double Sunrise’ 2025: Ultimate Guide To North America’s Solar Eclipse

A partial solar eclipse will be visible from North America on March 29, 2025. Here’s when, where, and how to safely watch it at sunrise and beyond.

www.forbes.com

 

[NMaude]

Here's an interesting video concerning exploding blackholes from Anton Petrov:

Hello and welcome! My name is Anton and in this video, we will talk about the most powerful neutrino ever found and exploding black holes
Links:
https://arxiv.org/abs/2502.19245https://www.youtube.com/redirect?ev...ttps://arxiv.org/abs/2502.19245&v=7_99nQVLl94
https://www.nature.com/articles/s4158...https://www.youtube.com/redirect?ev...com/articles/s41586-024-08543-1&v=7_99nQVLl94
Previous videos: • We've Just Seen The Most Powerful Neu...
https://www.youtube.com/watch?v=vEAKbL04bxQ
• Whole Universe May Be Evaporating Acc...

• Hawking Radiation Explained - This If... https://www.youtube.com/watch?v=6h6MgvBLrxk
#neutrino #cosmic #cosmology

0:00 Most powerful neutrino ever found
1:20 Neutrinos and how we find them
3:10 Recent detection from KM3NET
5:10 New study - exploding black holes?
7:55 But there is a small problem
8:40 Potential explanation
9:59 How to prove this
11:00 Conclusions and what now?

 

[NMaude]

Apparently the Curiosity rover has discovered some long-chain hydrocarbons on Mars, from NASA Goddard:

Since arriving at Mars in 2012, NASA’s Curiosity rover has been ingesting samples of Martian rock, soil, and air to better understand the past and present habitability of the Red Planet. Of particular interest to its search are organic molecules: the building blocks of life. Now, Curiosity’s onboard chemistry lab has detected long-chain hydrocarbons in a mudstone called “Cumberland,” the largest organics yet discovered on Mars.

Learn more about this discovery: https://science.nasa.gov/missions/mar...

 

[Grey Havoc]

Mysterious blue spiral spotted over European skies. What was it? (photos)

Was the cosmic whirlpool a spiral galaxy, a UFO, or something much more down to Earth?

www.space.com

Glowing spiral spotted in sky above Britain

Mysterious swirl seen by stargazers revealed to be caused by Falcon 9 rocket

www.telegraph.co.uk

 

[FighterJock]

Interesting that a simple dumping of fuel would cause such a spiral shape in the sky Grey Havoc.

 

[Flyaway]

Scientists analyzing pulverized rock onboard NASA’s Curiosity rover have found the largest organic compounds on the Red Planet to date. The finding, published Monday in the Proceedings of the National Academy of Sciences, suggests prebiotic chemistry may have advanced further on Mars than previously observed.

Scientists probed an existing rock sample inside Curiosity’s Sample Analysis at Mars (SAM) mini-lab and found the molecules decane, undecane, and dodecane. These compounds, which are made up of 10, 11, and 12 carbons, respectively, are thought to be the fragments of fatty acids that were preserved in the sample. Fatty acids are among the organic molecules that on Earth are chemical building blocks of life.

NASA’s Curiosity Rover Detects Largest Organic Molecules Found on Mars

The finding expands on the kinds of ancient molecules that can be preserved in the Martian surface.

www.jpl.nasa.gov

Related paper:

https://www.pnas.org/doi/abs/10.1073/pnas.2420580122

 

[NMaude]

Interesting that a simple dumping of fuel would cause such a spiral shape in the sky Grey Havoc.

Not just fuel, what you're seeing is the dumping of residual RP-1 AND LOX after the de-orbit burn (And after the second-stage's RCS thrusters sent it into a tumble to ensure rapid breakup after hitting the atmospheric interface at 400,000').

 

[NMaude]

A recent discovery where most galaxies seem to spin clockwise, from Anton Petrov:

Hello and welcome! My name is Anton and in this video, we will talk about spinning galaxies and the universe
Links:
https://academic.oup.com/mnras/articl...
https://www.mdpi.com/2571-712X/7/3/41https://www.youtube.com/redirect?ev...//www.mdpi.com/2571-712X/7/3/41&v=dmdrfKETKAE
https://www.eso.org/public/news/eso1438/
https://www.k-state.edu/media/newsrel...https://www.youtube.com/redirect?ev...elescope-spinning-galaxies.html&v=dmdrfKETKAE
Tired light: https://bigthink.com/starts-with-a-ba...
Previous videos:
https://www.youtube.com/watch?v=7Id_zukvxkA&pp=0gcJCR0AztywvtLA
• Something Is Forcing Galaxies to Spin...

• Ultimate Graph of the Universe Shows ...

• Scientific Evidence That The Universe...

• Mindblowing New Images of Cosmic Web ...

• Study Reveals Incredible 3D Images of... https://www.youtube.com/watch?v=nA69_R__vc4
#galaxy #universe #cosmology

0:00 Are most galaxies spinning preferentially?
1:10 How this was achieved - JWST data
2:00 Results and potential explanations
3:25 Spinning bias?
5:00 What if we're inside a black hole?
7:15 Most likely explanation - quasars and cosmic web
10:10 Criticism of the author

 

[NMaude]

DESI observations suggest there's something wrong with the expansion of the Universe, from Anton Petrov:

Hello and welcome! My name is Anton and in this video, we will talk about new observations that suggest something is wrong with the expansion of the universe
Links:
https://data.desi.lbl.gov/public/pape...https://www.youtube.com/redirect?ev...public/papers/y3/KP.DR2.BAO.pdf&v=ZvL5HHn7DAk
https://arxiv.org/abs/2502.12667https://www.youtube.com/redirect?ev...ttps://arxiv.org/abs/2502.12667&v=ZvL5HHn7DAk
https://arxiv.org/abs/2503.06712https://www.youtube.com/redirect?ev...ttps://arxiv.org/abs/2503.06712&v=ZvL5HHn7DAk
https://astro.ucla.edu/~wright/BAO-co...https://www.youtube.com/redirect?ev....edu/~wright/BAO-cosmology.html&v=ZvL5HHn7DAk
Previous videos:
https://www.youtube.com/watch?v=Op2pgd5Kny4
• Biggest Study Ever Confirms Dark Ener...
https://www.youtube.com/watch?v=wp8zHG1g7bc
• New Studies on Dark Energy Reveal a M...

• How Fast Is The Universe Expanding? N...

• First of Its Kind 3x Lensed Supernova...

• Someone Just Found a Huge Structure T...

• Study Suggests Dark Energy Doesn't Ex...

• Universe Could Stop Expanding and Col...
https://www.youtube.com/watch?v=m9M3yw0J9DQ&pp=0gcJCR0AztywvtLA
#desi #darkenergy #universe

0:00 DESI results that shocked everyone
2:38 Cosmological constant
4:10 BAO - baryon acoustic oscillations
8:30 Main purpose of DESI investigation
9:40 New study and the main discovery
10:35 Major problem - no match
12:10 Evolving constant?
13:05 Explanations - quintessence and timescape models
14:00 Conclusions and what's next?

 

[Flyaway]

NASA's Webb Sees Galaxy Mysteriously Clearing Fog of Early Universe

Summary
Unexpected, bright hydrogen emission caught astronomers by surprise.

The early universe was filled with a thick fog of neutral hydrogen. Even though the first stars and galaxies emitted copious amounts of ultraviolet light, that light struggled to pierce the fog. It took hundreds of millions of years for the neutral hydrogen to become ionized, electrons stripped from protons, allowing light to travel freely through space.

Astronomers are seeking to understand this unique time of transformation, known as the era of reionization. A newly discovered galaxy illuminated this era in an unexpected way. JADES-GS-z13-1, observed just 330 million years after the big bang, shows bright hydrogen emission that should have been absorbed by the cosmic fog. Theorists are struggling to explain how its light could have pierced the fog at such an early time.

https://webbtelescope.org/contents/news-releases/2025/news-2025-116

Related paper:

Witnessing the onset of reionization through Lyman-α emission at redshift 13 - Nature

Spectroscopy from the JWST Advanced Deep Extragalactic Survey of a galaxy at redshift 13 shows a singular, bright emission line identified as Lyman-α, suggesting the onset of reionization only 330 Myr after the Big Bang.

www.nature.com

 

[FighterJock]

Will this finally point to the discovery of the first early stars in the universe? That was what the whole point of the Webb telescope was for.

 

[Justo Miranda]

NASA’s Curiosity Rover Detects Largest Organic Molecules Found on Mars

The finding expands on the kinds of ancient molecules that can be preserved in the Martian surface.

www.jpl.nasa.gov

Related paper:

https://www.pnas.org/doi/abs/10.1073/pnas.2420580122

This does not prove that prebiotics originate from Mars, they could have been transported by a comet or by a carbonaceous meteorite. Nor can it be proven that there was an impact crater because it is possible that the explosion occurred in the atmosphere spreading the prebiotics over a large area.

 

[NMaude]

Some new findings concerning the Chicxulub-impactor and the KT extinction event, from Anton Petrov:

Hello and welcome! My name is Anton and in this video, we will talk about ripples from the dinosaur killing asteroid
Links:
https://www.sciencedirect.com/science...https://www.youtube.com/redirect?ev...ticle/abs/pii/S0025322724002500&v=7hpRrys_suE
https://gsa.confex.com/gsa/2022AM/mee...https://www.youtube.com/redirect?ev...2AM/meetingapp.cgi/Paper/377578&v=7hpRrys_suE
https://agupubs.onlinelibrary.wiley.c...https://www.youtube.com/redirect?ev...ey.com/doi/10.1029/2021AV000627&v=7hpRrys_suE
Other videos:
https://www.youtube.com/watch?v=TrGNYkIYio0&pp=0gcJCR0AztywvtLA
• Ripples From Megatsunami That Killed ...

• Where Exactly Did the Dinosaur Killin...

• What Really Happened on The Day Dinos... https://www.youtube.com/watch?v=gw5ZHPWRUOg
#dinosaur #asteroid #chicxulub

0:00 Chicxulub impact updates
1:00 Initial effects and tsunami generated
2:50 Tsunami simulations
3:35 New Zealand mystery
4:30 Wave propagation
5:35 Megaearthquake effects and liquification of soil
7:10 Louisiana evidence and new discoveries
10:10 Ripple formation and mixed effects
11:20 Conclusions

 

[NMaude]

An interesting video about what kilonovas are:

We all know that neutron stars are pretty extreme stellar phenomena, but what would happen if two of them ever collided? Welcome to the strange world of the kilonova. Let’s find out more.Kilonovas* get their names from the fact that they are 1000 times brighter than a nova. This does mean that they are about 1 tenth to 1 hundredth the brightness of a supernova, and because of how they form they are incredibly interesting indeed.

Magnetar Video
https://www.youtube.com/watch?v=jRPjgKs-aw4&pp=0gcJCR0AztywvtLA
• Magnetars: Neutron Stars but Scarier! https://www.youtube.com/watch?v=jRPjgKs-aw4&pp=0gcJCR0AztywvtLA
Speed of light video
https://www.youtube.com/watch?v=kZZ4B8UiEGM
• Measuring the Speed of Light Througho...

https://www.youtube.com/watch?v=kZZ4B8UiEGM
Chapters
0:00 – Introduction
0:12 – What are Kilonovas
0:42 – Neutron star formation
1:00 – Binary pairs
2:23 – Neutron star mergers
3:18 – Kilonova
3:48 – R process
4:50 – What does a kilonova produce?
5:17 – Gravity waves
7:00 – Gravity wave detection

*Kilonova sounds like a late 70s dance you'd do in a nightclub to disco music.

 

[Flyaway]

An interesting video about what kilonovas are:

*Kilonova sounds like a late 70s dance you'd do in a nightclub to disco music.

It’s rather like that other astronomical term hypernova, which also sounds distinctly 70s disco. Hey man let’s go down the hypernova for a groovy time, as Shaggy would no doubt say!!!

 

[Flyaway]

New study explains why Mars is RED:

View: https://youtu.be/4_DsX-1-q1E?si=L84Vd2lzJhXhHoPL

 

[NMaude]

New study explains why Mars is RED:

I think you meant red not RED.

 

[NMaude]

It turns out that while WR 104 is stranger than previously thought it's not as dangerous either, from Anton Petrov:

Hello and welcome! My name is Anton and in this video, we will talk about the strange object WR 104
Links:
https://academic.oup.com/mnras/articl...
Previous videos:

View: https://www.youtube.com/watch?v=uZtHLmkGy6w

• Cosmic Explosion That Blinded Our Sat...
• Mystery (and Dangers) of Unusual Pinw...
• WR 104 Spiral Could Kill Life on Earth

View: https://www.youtube.com/watch?v=t09fzU9H674

0:00 Pinwheel nebulae
0:40 What are they though?
3:30 What makes WR 104 so special
5:25 What we still didn't know
6:20 New research finally answers some questions
8:05 New mystery - strange inclination of the spiral
9:00 Conclusions and what this means

Here's a video about weird experiments that can only be performed in space, from Astrum:

Venture 400 kilometers above the Earth to visit the International Space Station, mankind's extraordinary floating laboratory where brave astronauts unlock the mysteries of science. This mind-blowing journey reveals the ISS's astonishing engineering marvel and the jaw-dropping experiments performed in zero gravity, including hypnotic fluid dynamics that defy everything you thought you knew about physics.