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Sep 16, 2015 04:27 PM ET // Ian O'Neill
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.
Aug 31, 2015 02:50 PM ET // Elizabeth Howell
See just how well Hubble is doing after 25 years in orbit.
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.
Aug 3, 2015 12:37 PM ET // Ian O'Neill
A new map of the Milky Way has revealed a surprising fact about the stars living in our galaxy -- nearly a third have moved far from their stellar birthplace.
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