Ellen Stofan
ellenstofan.bsky.social
Ellen Stofan
@ellenstofan.bsky.social
Under Secretary for Science and Research at Smithsonian, former Chief Scientist of NASA, my posts are my own.
Reposted by Ellen Stofan
🧪🔭
November 5, 2025 at 7:39 PM
Reposted by Ellen Stofan
Predicting the way forward for the Global Biodiversity Framework | PNAS www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
October 14, 2025 at 7:32 PM
Ad astra Jim Lovell- a truly heroic gentleman.
August 8, 2025 at 7:37 PM
Anniversaries - hope you celebrated !

m.youtube.com/watch?v=R7ay...
"Apollo 50: Go for the Moon" Full Show
YouTube video by Smithsonian National Air and Space Museum
m.youtube.com
July 19, 2025 at 9:14 PM
Wonderful meeting yesterday and look forward to future collaboration!
The U.S. is our most important scientific partner — built on trust, shared values, and decades of collaboration. I’m grateful to meet @ellenstofan.bsky.social from the #SmithsonianInstitution to strengthen this transatlantic bond and explore future opportunities, including in ecosystem research.
April 8, 2025 at 12:42 PM
My dad in 1964 in National Geographic
March 23, 2025 at 9:01 PM
Reposted by Ellen Stofan
My biggest story I worked on last year is up, on the Dragonfly mission to Titan! Featuring @planetdr.bsky.social , @spacewhalerider.com , and (the awesomely named but not on bsky) Zibi Turtle. This is an amazing mission and one I hope to see come to fruition with some surprising science. 🧪🔭🪐
February 14, 2025 at 4:17 PM
On this #InternationalDayofWomenandGirlsinScience thinking of all the women I know who are crushing it in science every day @planetdr.bsky.social @katharinehayhoe.com @astrokatie.com @deepseadawn.bsky.social @minwadhwa.bsky.social to name just a few!
February 11, 2025 at 8:42 PM
For folks having trouble with ADS, apologies- we are sorting out technical problems as we increase content and support more users. ui.adsabs.harvard.edu
February 11, 2025 at 4:17 PM
Awful news from DCA tonight
BREAKING: a plane has gone down in the Potomac on approach to Reagan National Airport in Washington DC. Reports that it collided with a helicopter.
January 30, 2025 at 2:42 AM
Reposted by Ellen Stofan
Researchers have detected organic compounds and minerals necessary for life in unprecedented samples collected from the near-Earth asteroid Bennu, adding evidence to the idea that asteroids likely delivered the building blocks of life to our planet early in its history. cnn.it/4hk44qw
January 29, 2025 at 5:53 PM
Reposted by Ellen Stofan
Via #NASAGoddard - Fourteen of the twenty amino acids that life on Earth uses to build proteins were discovered within the Bennu samples that were returned by the OSIRIS-REx Asteroid Sample Return Mission. This isn't the song of life as Dr. Carl Sagan may have said , but the notes are there. 1/
January 29, 2025 at 4:41 PM
Reposted by Ellen Stofan
If you're listening to the NASA briefing on OSIRIS-REx science results, the briefing charts are here:
svs.gsfc.nasa.gov/14772
NASA Scientific Visualization Studio | Discoveries from Asteroid Bennu: Media Briefing Graphics
OSIRIS-REx MISSION RECAPThis highlight reel recaps the OSIRIS-REx mission, from assembly and launch of the spacecraft in 2016, to arrival at asteroid Bennu in 2018, TAG sample collection in 2020, the ...
svs.gsfc.nasa.gov
January 29, 2025 at 4:14 PM
Drake Passage, ~9 pm
January 3, 2025 at 11:57 PM
Reposted by Ellen Stofan
Kilauea is erupting
Here’s a livestream:

www.youtube.com/watch?v=w0Ku...
Kīlauea Volcano, Hawaii (Halemaʻumaʻu crater)
YouTube video by USGS
www.youtube.com
December 23, 2024 at 7:59 PM
Came to this site at the advice of @katharinehayhoe.com - looking forward to discussions of hopeful climate solutions
November 20, 2024 at 1:56 PM
Happy to be here- interested in all things #space #climate #STEM #science
November 16, 2024 at 12:51 AM