Daniel and Kelly’s Extraordinary Universe cover image

How do planets get their moons?

Daniel and Kelly’s Extraordinary Universe

00:00

The Rosh Limit for the Earth

The Rosh limit for the Earth is around 10,000 kilometers. The moon is like 385,000 kilometers away. So it's well past the Rosh limit. But maybe if you're far out and up beyond this limit, then you don't see this difference in pull from the Earth between one and the other. You'll still always feel that difference, right? And like the moon does feel that difference. That's why we talked about earlier, the moon is a football. It is being pulled by the Earth's tidal forces. But it's far enough away that those tidal forces are not strong enough to tear it apart.

Transcript
Play full episode

The AI-powered Podcast Player

Save insights by tapping your headphones, chat with episodes, discover the best highlights - and more!
App store bannerPlay store banner
Get the app