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Sep 25, 2015 03:51 PM ET // Ian O'Neill
These beautiful, shimmering tendrils of plasma are all that remain of an ancient massive star that, approximately 8,000 years ago, died and exploded as a supernova.
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.
Jun 25, 2015 05:47 PM ET // Irene Klotz
A planet about the size of Neptune but situated 33 times closer to its parent star than Earth orbits the sun is losing its atmosphere, forming a fat, comet-like tail in the process.
Jun 5, 2015 01:54 PM ET // Ian O'Neill
Three supernovae have been found erupting alone in the depths of 'intracluster' space -- a cosmic first.
Jun 4, 2015 01:08 PM ET // Ian O'Neill
On Wednesday, President Barack Obama mentioned something curious in a tweet -- it was a message about the cosmos.
Jun 3, 2015 02:01 PM ET // Irene Klotz
For the most part, Pluto’s four small moons appear to orbit harmoniously and precisely around the equatorial region of the dwarf planet, but appearances can be deceiving.
May 4, 2015 11:59 AM ET // Ian O'Neill
For the first time, astronomers have added a new 3-dimensional perspective to the Hubble Space Telescope's dazzling view of the Eagle Nebula's famous 'Pillars of Creation.'
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