Danny Glavin
Astrobiologist and Senior Scientist at NASA Goddard Space Flight Center; author of Frozen in Time: Hunting Meteorites in Antarctica for Signs of Life; enjoys spending time with family, memories of surfing in California, and the Fall season in Maryland
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- The cosmic ray exposure age estimates of the returned Bennu samples indicates they were exposed to ionizing radiation for a few million years, even though rock itself is ~4.5 billion years old. So, the total radiation dose was not high enough to completely destroy the organics.
- Learning new secrets about the origin of life at Meteor Crater, Arizona.
- Snow day at Lowell Observatory!
- Curiosity rover makes ‘arguably the most exciting organic detection to date on Mars’ www.cnn.com/2025/03/29/s...
- Large organics on Mars! Are these the chemical remnants of ancient life or were they formed by geological processes? www.npr.org/2025/03/28/n...
- Organics from ancient life on Mars? It can't be ruled out! It is time to bring home samples from Mars and analyze them using the best lab instruments to know for sure. science.nasa.gov/missions/mar...
- Amino Acids on Bennu: NASA’s OSIRIS-REx Uncovers Clues to Life’s Origins www.seti.org/amino-acids-...
- Helping to inspire the next generation. Thank you letter from a 4th grade student I received after career day at a local elementary school.
- Had a lot of fun with this NASA Science Live event today. m.youtube.com/watch?v=VzhL...
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- Many of the comparisons between the soluble molecules in the Bennu and Ryugu samples are made in the Nature Astronomy paper.
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- IMO this is one of the biggest science stories in a long, long time. @meteordannyg.bsky.social
- Thank you for the very kind words @george-harper.bsky.social
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- He did a very similar segment for the Stardust comet Wild2 glycine discovery many years ago....
- David, this bit is hilarious!
- @colbertlateshow.bsky.social I promise NASA wil let you know when we find extraterrestrial life :)! Thank you for the very funny bit on amino acids in asteroid Bennu on Thursday. youtu.be/Rgj_xRiGo7w?...
- NPR fans: listen in today on Science Friday to hear more about the latest science results from asteroid Bennu. www.sciencefriday.com
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- If indeed the early solar system did contain an equal mixture of left and right handed amino acids like we are seeing in Bennu, this bodes very well for using chirality as a biosignature. Less chance of a false positive and possible we could find life of the opposite handedness as life on Earth.
- Exciting new results from asteroid Bennu! www.cnn.com/2025/01/29/s...
- This will be exciting. www.nasa.gov/news-release...
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- You can also order one here: bookstore.gpo.gov/products/202...
- The Extraterrestrial Materials Analysis Group (ExMAG) is seeking applications for new membership in 2025. Apply by December 6 here: docs.google.com/document/u/0...
