<p><a rel="nofollow" href="http://imgsrc.hubblesite.org/hu/db/images/hs-2015-15-a-web_print.jpg" target="_blank"></a></p> <p>Scientists using NASA’s Hubble Space Telescope have discovered that the immense halo of gas enveloping the Andromeda galaxy, our nearest massive galactic neighbor, is about six times
<p></p> <p>NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and ESA’s (European Space Agency) XMM-Newton telescope are showing that fierce winds from a supermassive black hole blow outward in all directions — a
<p style="text-align:center"></p> <p>New data from NASA’s Chandra X-ray Observatory offer a glimpse into the environment of a star before it exploded earlier this year, and insight into what triggered one of
<p style="text-align: center;"></p> <p>Astronomers using NASA’s Hubble Space Telescope for the first time have spotted a star system that later produced an unusual supernova explosion of a white dwarf, the stripped-down
<p style="text-align:center"></p> <p>Astronomers have used NASA’s Chandra X-ray Observatory and the European Space Agency’s (ESA’s) XMM-Newton to show a supermassive black hole six billion light years from Earth is spinning extremely
<p><a href="http://www.jpl.nasa.gov/spaceimages/images/mediumsize/PIA17847_ip.jpg" target="_blank"></a></p> <p>The closest supernova of its kind to be observed in the last few decades has sparked a global observing campaign involving legions of instruments on the ground and
<p style="text-align:center"><a href="http://hubblesite.org/newscenter/archive/releases/2014/13/image/a/format/web_print/" target="_blank"></a></p> <p>This is a Hubble Space Telescope composite image of a supernova explosion designated SN 2014J in the galaxy M82. At a distance of approximately 11.5 million light-years
<p>NASA’s Hubble Space Telescope has found the farthest supernova so far of the type used to measure cosmic distances. Supernova UDS10Wil, nicknamed SN Wilson after American President Woodrow Wilson, exploded
<p>Two X-ray space observatories, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) and the European Space Agency’s XMM-Newton, have teamed up to measure definitively, for the first time, the spin rate of
<p>Astronomers have found strong evidence that a massive black hole is being ejected from its host galaxy at a speed of several million miles per hour. New observations from NASA’s