While measuring the speed of stars whirling around a nearby dwarf galaxy, astronomers have realized that a reservoir of dark matter may be lurking within.
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.
The explosion in a distant galaxy cluster is ongoing and has been continuing for the last 100 million years.
A group of young stars has been caught loitering near the center of the Milky Way galaxy, a region previously thought to be dominated by a more mature population.
Distant galaxies birthing baby stars up to 1,000 times the rate of the Milky Way have been a long-standing mystery -- until now.
As stars whip around our galaxy's supermassive black hole, they should generate their own special kind of 'sonic boom' -- could astronomers detect them?
After surveying some promising galactic candidates, an astronomer has concluded that there is little to no evidence for any super-advanced alien civilizations in our local universe.
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