Starcast Join the waitlist
Planetary Radio: Space Exploration, Astronomy and Science

Planetary Radio: Space Exploration, Astronomy and Science

Where did Earth’s water come from? Clues hidden in Apollo Moon dust

Feb 11, 2026 · 1h 2m

Coming soon to iPhone. Already have it? “Listen in Starcast” takes you straight there.

On this episode

About this episode

Scientists are using Apollo Moon dust to trace where Earth’s water came from and how our planet became habitable. Planetary scientist Tony Gargano explains how lunar samples reveal the history of ancient impacts, with a short bonus reflection from George Takei on “Star Trek” and the Artemis era.