Kelly Lepo
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kellylepo.bsky.social
Kelly Lepo
@kellylepo.bsky.social
Astronomer | Science communicator | Adult Lisa Simpson
Education and Outreach Scientist at the Space Telescope Science Institute (@stsci.edu) supporting JWST.
Personal account — Views are my own
Also on Mastodon: @KellyLepo@scicomm.xyz
yes darth. we get this question a lot. i usually tell them about the retroreflectors on the moon.

we shine lasers at the reflectors left by the apollo astronauts to measure how far away the moon is!
en.wikipedia.org/wiki/Lunar_L...
Lunar Laser Ranging experiments - Wikipedia
en.wikipedia.org
October 31, 2025 at 7:49 PM
Forgot to add 🔭 for the feed.
October 9, 2025 at 4:58 PM
And I'm glad we were finally able to get this article published yesterday, before the government shutdown meant that NASA is no longer updating its website.
October 1, 2025 at 6:42 PM
Is there a line that separates exoplanets with and without atmospheres — called the "cosmic shoreline"?

These stars are very active, sending out X-rays and flares, blasting the planets that orbit them. So it's not clear if we can extrapolate from the solar system. The program tests this hypothesis.
October 1, 2025 at 6:42 PM