Scientists are using Apollo Moon samples to trace the origin of Earth's water.

This week on Planetary Radio.

I'm Sarah al-Ahmed of the Planetary Society, with more of the human adventure across our solar

system and beyond.

How did Earth get its water? It's one of the most profound questions we can ask about our planet,

and part of the answer may be written in dust and rocks that were collected more than half a century

ago. In this episode, we'll explore new research that uses Apollo-era lunar samples to trace the

history of ancient impacts and place new limits on how much water meteorites could have

delivered to Earth.

Our guest is Tony Gargano, a postdoctoral fellow at the Lunar and Planetary Institute with

the University Space Research Association.

He's also a research affiliate at NASA Johnson Space Center.

He's the lead author on a new paper that uses moon dust to investigate the origin of Earth's

water.

But we'll begin our show with a short special bonus segment featuring George Decay,

an actor, author, and activist who reflects on the enduring legacy of Star Trek.

He'll talk about its influence on generations of scientists and explorers, and why he's so

excited for humanities return to the moon in the Artemis era.

And of course, we'll wrap up with Bruce Betts, our chief scientist, who joins us for

What's Up. He'll talk about the Aende meteorite, which broke apart as it fell to Earth over 50 years ago.

Its many recovered fragments remain some of the most scientifically important rocks ever studied.

If you love Planetary Radio and want to stay informed about the latest space discoveries,

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