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
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...
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
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...
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...
Forgot to add 🔭 for the feed.
October 9, 2025 at 4:58 PM
Forgot to add 🔭 for the feed.
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
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.
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.
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
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.
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.