Exoplanets: Crash Course Astronomy #27

Today Phil explains that YES, there are other planets out there and astonomers have a lot of methods for detecting them. Nearly 2000 have been found so far. The most successful method is using...

==========
When you look up at the night sky, and if you happen to live far from city lights, youcan see thousands of stars. It seems like the sky is crammed shoulder to shoulder withthem. And you’re only seeing the tiniest fraction of stars there are; billions moreexist that are too faint to see with just your eyes.As you ponder this incredible number, a natural thought arises: Are there planets circlingthose stars, too? And are any of them like Earth?People just like you and me have wondered about this for thousands of years. And rightnow, today, we can answer that question.And the answer is: yes.Our Sun is orbited by a lovely array of planets. And they’re wildly diverse — big, small,airless, rocky, gaseous, hot, cold, and more. That makes you think that maybe forming p...
Share & Embed

Embed the player

COPY
loader
If you prefer to rent each film separately and not to join a subscription,  Click Here..