How many planets are in space?

We’re back! We’ve officially moved into our new headquarters! Come unpack with us and get a tour while we fill you in on some big news. Plus, new episodes of Brains On coming later this month and new Smash Boom and Forever Ago after that. If you want to support the show or drop u ...  Show more

We're moving the Brains On Universe Headquarters, and that means we have to stop putting out new episodes until we get settled. We know: not cool. But, our new home is going to be bigger and better and the absolute BEST. We can't wait until it's ready for you to visit. In the mea ...  Show more

In episode 67, thanks to a fantastic suggestion from Ruby of Sydney, Australia and Olivia's cousin Abby, we get curious about planets.  There were 9 planets when Olivia's daddy was her age and there are only 8 planets now.  Why is that?  What makes a planet a planet?  Join us ...

Since the Kepler telescope went online, astronomers have found there may be an estimate 40 billion planets like Earth in the Milky Way galaxy alone. What does it take for a planet to be considered Earth-like?

How many stars can we see in the sky? Thousands? Billions?

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Get ready to blast off on an imagination adventure through outer space with Caitie! In this episode, we learn incredible things about the 8 planets circling the sun, and we discover just how special and precious our planet Earth is.See Privacy Policy at https://art19.com/privacy ...  Show more