The Star That Trolled Astronomers

It blinks like an alien beacon. It's in outer space like an alien beacon. But it's not an alien beacon. Just what is it?

Announcements, ScienceAndrew SherwoodDecember 7, 2016Anthony Hewish, Fritz Zwicky, Hank Green, John Green, PSR B1257+12, PSR B1919+21, pulsars, S- Jocelyn Burnell, SciShow, SciShow Space, Thomas Gold, vlogbrothers, Walter Baade, YouTube