Earth is always moving around the sun, but does the sun move too? Or is it fixed in one place in the cosmos? In this episode, we talk to astrophysicist Brittany Kamai to get to the heart of this issue!
Do you have a Moment of Um question that’s burning in your brain? Send it to us at BrainsOn.org/contact, and we’ll help shine a light on the answer.

We’re back! Brains On Universe has a new headquarters
07:30

A big update about Moment of Um and the Brains On Universe
02:56

How do braces work?
06:19