Astronomers have found a new clutch of tiny, dense galaxies that thrived in the early universe. But they still can't explain why the compact objects are nowhere to be found today.
The ultra-dense galaxies, which were already full of old stars when the universe was less than 3 billion years old, were first reported in 2008. The most extreme have masses that rival the Milky Way's, but are just one-tenth as wide.
The ultra-dense galaxies, which were already full of old stars when the universe was less than 3 billion years old, were first reported in 2008. The most extreme have masses that rival the Milky Way's, but are just one-tenth as wide.
Full story by Rachel Courtland on New Scientist
0 comments:
Post a Comment