Einstein's Theory Passes a Massive Test

A team of scientists used 20 years of data from several telescopes to watch how three stars orbited the center of our own Milky Way Galaxy, Sagittarius A*. They’ve created a general relativity theory test.

New Hubble images reveal faint galaxies from the early cosmos

Spectacular new Hubble Space Telescope images reveal 250 previously unknown galaxies that formed just 600 million years after the Big Bang.