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“galaxy”

May 22, 2015 01:28 PM ET // Mike Wall, Space.com
An ongoing act of cosmic cannibalism may be responsible for the strange appearance and unprecedented behavior of a gigantic star nicknamed Nasty 1.
May 14, 2015 07:00 AM ET // Charles Q. Choi, SPACE.com
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.
May 14, 2015 09:47 AM ET // Ian O'Neill
Astronomers studying the globular star clusters orbiting the giant elliptical galaxy Centaurus A (NGC 5128) have stumbled upon a fascinating discovery -- the clusters are too massive.
May 8, 2015 09:25 AM ET // Ian O'Neill
The Andromeda galaxy, the nearest spiral galaxy to our Milky Way, is sporting a massive halo of hot gas spanning a million light-years into intergalactic space.
Apr 28, 2015 02:07 PM ET // Ian O'Neill
By studying ancient molecular clouds in our galaxy, astronomers have revealed that the universe's reservoir of water likely appeared much earlier than thought -- only a billion years after the Big Bang.
Apr 23, 2015 10:03 AM ET // Irene Klotz
Hubble anniversary tributes kicked off on Thursday with the unveiling a spectacular new image taken by the telescope.
Apr 23, 2015 05:51 PM ET // Ian O'Neill
Astronomers have discovered 11 entire galaxies that have undergone some unpleasant gravitational turbulence and flung from their home clusters, marooned in intercluster space.
Apr 23, 2015 01:52 PM ET // Ian O'Neill
The Event Horizon Telescope (EHT) now spans the diameter of our planet and, when the vast project goes online, astronomers will get their first glimpse of the bright ring surrounding a supermassive black hole.
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