A new cosmic portrait taken at an observatory in Chile reveals a cluster of blue and white stars.
Astronomers may have solved the decades-long cosmic murder mystery of what kills most galaxies in the universe: They are strangled to death, so they can no longer create new stars.
A galaxy far, far away — farther, in fact, than any other known galaxy — has been measured by astronomers.
The BICEP2 gravitational wave announcement may have been premature, but the search has only just begun -- an interview with cosmologist Kendrick Smith.
The photos capture Mars passing below two objects known as the Lagoon and Trifid nebulas, both in the constellation Sagittarius.
An extraordinary amount of ultraviolet light appears to be missing from the universe, scientists have found.
Scientists studying more than 140,000 extremely bright galaxies have calculated the expansion of the universe with unprecedented accuracy.
Astronomers have added an ultraviolet perspective to an ultra-deep field view of the universe taken by the Hubble Space Telescope over the past decade. Continue reading →
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