Astronomers have detected something baffling at the furthest frontiers of our observable universe: lots of massive galaxies that shouldn't even exist.
Shimmering deep inside a cosmic supervoid is MCG+01-02-015, a pristine galaxy that is the undisputed galactic loner of the universe.
Ethyl alcohol and a simple sugar found on the famous comet shed light on the cosmic origins of planets like Earth.
The Hubble Space Telescope has taken its deepest-yet look into the cosmos to see some of the earliest galaxies that popped into existence only a few hundred million years after the Big Bang.
A so-called cosmic tsunami is rousing a galaxy cluster affectionately nicknamed Sausage, suggesting that stagnant galaxies can be rejuvenated when galactic clusters collide.
See just how well Hubble is doing after 25 years in orbit.
September is a perfect time to help astronomers educate the public (and themselves) about the universe.
Mercury and Pluto features were among the places the public helped name in the past year -- where else can we (officially) leave our cosmic mark?
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