A long undersurface tunnel discovered in old NASA data
January 17, 2023 Issue #514
Dinkinesh has a moon, and that moon is two moons touching. Yeah, it’s weird.
The spacecraft took some pretty cool shots of the tiny, lumpy moon
The Wall Street Journal is awful, and my friend Rusty has money for grad students to protect Earth from asteroids
Ruthenium isotopes reveal the secrets of the Chicxulub impactor
14 May 2020 Issue #218
20 September 2021 Issue #359
It’ll likely drop to zero, but it may be a while before we know for sure
27 June 2022 Issue #439
October 3, 2022 Issue #468
Also: How many near-Earth asteroids have been visited by spacecraft?
