Wait...is that the first planet we’re seeing outside of our galaxy?

Somewhere in the galaxy Messier 51, NASA's Chandra X-ray Observatory saw what might be a planet.

By Elizabeth Rayne 1 week ago

A supermassive black hole that can't stop erupting

By Phil Plait 2 months ago

Baby stars throw big tantrums. Very, very big tantrums. And they do it a lot.

By Phil Plait 4 months ago

The first lone neutron star ever seen outside the Milky Way

By Phil Plait 5 months ago

Incredible image: Gorgeous magnetic chaos in the galactic center

By Phil Plait 5 months ago

Chandra X-ray Observatory confirms newly-found baby magnetar doubles as a pulsar

By Jeff Spry 10 months ago

So, um, does anyone remember where we put that supermassive black hole?

By Phil Plait 10 months ago

Is another Tatooine the first planet we know of in a galaxy beyond the Milky Way?

By Elizabeth Rayne 1 year ago

NASA space telescopes spot TIE fighter-shaped galaxy 500 million light-years away

By Jeff Spry 1 year ago

The nearby supernova no one saw

By Phil Plait 1 year ago