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.
The Magellanic Clouds, which can only be seen from the southern hemisphere, are two of our nearest neighbors.
A so-called cosmic tsunami is rousing a galaxy cluster affectionately nicknamed Sausage, suggesting that stagnant galaxies can be rejuvenated when galactic clusters collide.
A mathematical way to describe chaotic systems uses a simple numerical scale to show if things might fly out of control.
In a galaxy, 600 million light-years away, a black hole deathmatch is ripping up spacetime, exposing some fascinating dynamics at the heart of a powerful quasar.
From round disks to oval clusters; many galaxies in the Universe have undergone a dramatic transformation over the past eight billion years or so.
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