<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>Researchers using NASA’s Hubble Space Telescope and Chandra X-ray Observatory have uncovered young, massive, compact galaxies whose raucous star-making parties are ending early. The firestorm of star birth has blasted
<p style="text-align:center"></p> <p>Astronomers have found an unlikely object in an improbable place: a monster black hole lurking inside one of the tiniest galaxies known.</p> <p>Though the black hole is five times the
<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 style="text-align: center;"></p> <p>Galaxies are social beasts that are mostly found in groups or clusters – large assemblies of galaxies that are permeated by even larger amounts of diffuse gas. With
<p style="text-align:center"></p> <p>Astronomers using NASA’s Hubble Space Telescope and Chandra X-ray Observatory and telescopes on the ground may have found the most crowded galaxy in our part of the universe.</p> <p>The ultra-compact
<p style="text-align:center" class="small"></p> <p>A massive and rare merging of two galaxies has been spotted in images taken by the Herschel space observatory, a European Space Agency mission with important NASA participation.</p> <p>Follow-up
<p>The universe is eerie enough without giving us an apparition of a 1980s video game alien attacker. This oddball-looking object is really a mirage created by the gravitational field of
<p>Astronomers have found an extraordinary galaxy cluster, one of the largest objects in the universe, that is breaking several important cosmic records. Observations of the Phoenix cluster with NASA’s Chandra
<p>While some galaxies are rotund and others are slender disks like our spiral Milky Way, new observations from NASA’s Spitzer Space Telescope show that the Sombrero galaxy is both. The