APOD from 2025-12-01

3I ATLAS: Tails of an Interstellar #Comet

Studying comet 3I/ATLAS, an interstellar visitor, suggests our Solar System is typical. It shares characteristics with our comets, like composition and dust ejection. Captured in Texas, the image shows a green coma and blue ion tail—common features. After its December #Earth flyby, it'll exit our system forever.

HD image at https://apod.nasa.gov/apod/ap251201.html#space #astronomy #asteroid #meteor #telescope #universe

Tryptophan, an essential amino acid, has been found to exist on #Bennu, a small #asteroid that swings by our #planet about every six years.

The discovery stems from an unprecedented sample collected by the OSIRIS-REx mission, which landed a #spacecraft on the asteroid in 2020, captured 121.6 grams of rocks and dust, and safely returned the cache to Earth in 2023.

Studying Bennu is important because its composition reflects that of the early solar system, giving scientists a glimpse into the beginnings of #life.

Finding tryptophan in the Bennu asteroid is a big deal, because #tryptophan is one of the more complex amino acids, and until now it had never been seen in any #meteorite or space sample.

The presence of tryptophan in an asteroid supports the idea that the recipe for life might not have begun only on Earth. Seeing it form naturally in space tells us that these ingredients were already being made out in the early Solar System. That would have made it easier for life to get started.

#astrobiology
https://edition.cnn.com/2025/11/27/science/tryptophan-asteroid-bennu-nasa-sample

APOD from 2025-12-01

3I ATLAS: Tails of an Interstellar #Comet

Studying comet 3I/ATLAS, an interstellar visitor, suggests our Solar System is typical. It shares characteristics with our comets, like composition and dust ejection. Captured in Texas, the image shows a green coma and blue ion tail—common features. After its December #Earth flyby, it'll exit our system forever.

HD image at https://apod.nasa.gov/apod/ap251201.html#space #astronomy #asteroid #meteor #telescope #universe

Tryptophan, an essential amino acid, has been found to exist on #Bennu, a small #asteroid that swings by our #planet about every six years.

The discovery stems from an unprecedented sample collected by the OSIRIS-REx mission, which landed a #spacecraft on the asteroid in 2020, captured 121.6 grams of rocks and dust, and safely returned the cache to Earth in 2023.

Studying Bennu is important because its composition reflects that of the early solar system, giving scientists a glimpse into the beginnings of #life.

Finding tryptophan in the Bennu asteroid is a big deal, because #tryptophan is one of the more complex amino acids, and until now it had never been seen in any #meteorite or space sample.

The presence of tryptophan in an asteroid supports the idea that the recipe for life might not have begun only on Earth. Seeing it form naturally in space tells us that these ingredients were already being made out in the early Solar System. That would have made it easier for life to get started.

#astrobiology
https://edition.cnn.com/2025/11/27/science/tryptophan-asteroid-bennu-nasa-sample

Finally here! Two years after #NASA 's #OSIRIS-REx mission returned samples of #asteroid #Bennu to Earth, we have now received 319 mg to study in our labs. We are hoping to determine Bennu’s isotopic composition and learn more about its “birthplace” in the Solar System.
#OSIRISREx #AsteroidBennu

Finally here! Two years after #NASA 's #OSIRIS-REx mission returned samples of #asteroid #Bennu to Earth, we have now received 319 mg to study in our labs. We are hoping to determine Bennu’s isotopic composition and learn more about its “birthplace” in the Solar System.
#OSIRISREx #AsteroidBennu

"Third time's the charm": Engineers with #asteroid mining experience from #PlanetaryResources and #cleantech experience from #FirstMode create a new consulting company called Special Teams. https://www.geekwire.com/2025/engineers-start-fresh-with-special-teams/ #Space #Tech #Engineering

“The near-Earth asteroid designated 2025 QD8 is expected to pass roughly 135,465 miles (218,009 kilometers) from our planet — roughly 57% the Earth-moon distance — at 10:57 a.m. ET (1456 GMT) on Sept. 3.”
https://www.space.com/stargazing/watch-live-online-as-an-asteroid-the-size-of-a-commercial-jet-passes-within-earth-moon-distance-on-sept-3-video
#space #asteroid

“The near-Earth asteroid designated 2025 QD8 is expected to pass roughly 135,465 miles (218,009 kilometers) from our planet — roughly 57% the Earth-moon distance — at 10:57 a.m. ET (1456 GMT) on Sept. 3.”
https://www.space.com/stargazing/watch-live-online-as-an-asteroid-the-size-of-a-commercial-jet-passes-within-earth-moon-distance-on-sept-3-video
#space #asteroid

Chaos, panic, total devastation: #asteroids in films are devastating, and only an unlikely, heroic mission can save humanity.

But what would happen if an #asteroid hurtled towards us for real?

On the occasion of #AsteroidDay, tune in to Chasing Starlight to find out:
https://www.youtube.com/watch?v=BaONsiiu5r4

#astrodon #astronomy #astrophysics #space #science

Chaos, panic, total devastation: #asteroids in films are devastating, and only an unlikely, heroic mission can save humanity.

But what would happen if an #asteroid hurtled towards us for real?

On the occasion of #AsteroidDay, tune in to Chasing Starlight to find out:
https://www.youtube.com/watch?v=BaONsiiu5r4

#astrodon #astronomy #astrophysics #space #science