Breathtaking Hubble Images Challenge Ideas About How Galaxies GrowSpectacular pictures of distant galaxies are challenging our view of the universe.
NASA Finds 'Massive' Black Hole In Tiny GalaxyThe black hole is five times as massive as the one in the center of our Milky Way in a galaxy that is 1/500th the size.
NASA Scientists Discover 6 Billion-Year-Old Cosmic SupermomScientists have found a cosmic supermom. It's a galaxy that gives births to more stars in a day than ours does in a year.
Scientists Find Black Holes 10 Billion Times Size Of SunScientists have found the biggest black holes known to exist — each one 10 billion times the size of our sun.