NASA Chief Just Announced A Serious WARNING About Betelgeuse Star Explosion! Betelgeuse is one of the brightest stars that you can see in the night sky, and its eventual explosion is an event that NASA has been dreading for a while. Located on the shoulder of Orion, Betelgeuse is fast approaching t...

How big can they get? What's the largest so far detected? Where does an 18 billion solar mass black hole hide? We've never seen them directly, yet we know they are there. Lurking within dense star clusters or wandering the dust lanes of the galaxy. Where they prey on stars. Or swallow planets whole....