More Evidence of Planet 9

For more than a century, astronomers have searched the galaxy for a ninth planet, one they refer to as Planet 9, or a super Earth. Recent evidence suggests the planet lies beyond Neptune and is much larger than Earth. Problem is, it’s way out there–about 80 times farther from the Sun than Earth. SciShow Space host Reid Reimers fills in the details.

ARVE Error: need id and provider
Spread the word

Leave a ReplyCancel reply