X-ray sources

Galaxies collide. NASA illustration

Swift confirmed: super active black holes are those created by merging galaxies

  • 22 תגובות
Marked with a white circle is the black hole at the center of the galaxy, and in red - the black hole kicked out of it. Illustration: Marian Heide and NASA

A black hole is kicked out of its galaxy

  • 33 תגובות