On the topic of

Galaxies

This Just In
Aug 28, 2015 05:58 PM ET // Ian O'Neill
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.
Aug 28, 2015 11:55 AM ET // AFP
From round disks to oval clusters; many galaxies in the Universe have undergone a dramatic transformation over the past eight billion years or so.
Aug 24, 2015 12:04 PM ET // Jason Major
Europe's XMM-Newton telescope took an X-ray scan of the Milky Way's core, capturing some dazzling high-energy delights.
Aug 11, 2015 05:58 PM ET // Ian O'Neill
Astronomers have discovered the smallest supermassive black hole lurking in the center of a dwarf galaxy around 340 million light-years away. Small it may be, but it could help to unlock some pretty hefty black hole mysteries.
Aug 10, 2015 04:00 PM ET // Irene Klotz
A study of more than 200,000 galaxies shows that the universe is producing half as much energy as it did 2 billion years ago and continues to fade.
Jul 27, 2015 03:50 PM ET // Ian O'Neill
The most dense galaxies known to exist in our universe have been discovered by 2 undergraduate students while looking through years of archival data.
Jul 10, 2015 12:50 PM ET // Charles Q. Choi, SPACE.com
A newfound giant black hole nearly as massive as 7 billion suns is dozens of times larger than astronomers expected given its host galaxy's size, researchers say.
Jun 19, 2015 01:48 PM ET // Ian O'Neill
The prospect of measuring the mass of the most massive known objects in the universe would send most people into a cold sweat, but for astronomers it's all in a day's work.
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