Keith Smith

@DrKeithSmith

PhD, occasional astronomer, talking head, science geek, cynic. @ScienceMagazine Senior Editor for research in astronomy and planetary science. Views own, duh.

Cambridge, UK science.org/author/keith-t… Joined January 2015

100 Following 807 Followers 4.8K Posts

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Keith Smith @DrKeithSmith Feb 20, 2024

With Twitter continuing to go downhill, I finally signed up to Bluesky, which seems the most likely replacement at this point.
I'm @drkeithsmith.bsky.social if you want to follow me there too.

Keith Smith @DrKeithSmith Oct 9

The Martian Moons Exploration (MMX) spacecraft will retrieve two samples from #Mars' moon Phobos, then bring them back to Earth for lab analysis. In a feature-length article, @SquigglyVolcano previews the mission, due to launch on 20 Oct. science.org/doi/10.1126/sc…

www.science.org Audacious space heist aims to bring home bits of mysterious martian moon Samples from Japan’s MMX mission could reveal how Phobos formed—and may contain pieces of Mars

Keith Smith @DrKeithSmith Oct 8

By combining data from #MeerKAT and #JWST, @ManishaCaleb et al. have traced a fast radio burst to a low-mass #galaxy at redshift 2. That's only three billion years after the Big Bang, during the Universe's peak in star formation rate.
science.org/doi/10.1126/sc…

Keith Smith @DrKeithSmith Sep 14

Samples of #asteroid Ryugu collected by Hayabusa2 are similar to Ivuna-type (CI) #meteorites. Kawasaki et al. use isotopic measurements of Ryugu and Ivuna to show that their parent bodies formed only 2 million years after the beginning of the Solar System.
science.org/doi/10.1126/sc…

Keith Smith @DrKeithSmith Sep 2

Editor's choice: Shimizu et al. use the Emirates Mars Mission to study the distribution of craters on Mars' moon Deimos. They find more craters on the side facing #Mars, contrary to expectations. What caused this distribution?
science.org/doi/10.1126/sc…