How Supermassive Black Holes Bind into Pairs During Galaxy Mergers
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Picture the Milky Way galaxy -- a disk of stars and gas, a stellar spheroid and an enormous halo of dark matter. It spirals around a black hole that is supermassive-about three million solar masses.
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Two independent teams of astronomers are reporting that they might be zeroing in on the time that bright galaxies began to light up the primordial universe.
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Astronomers use the Hubble telescope to reveal the effects of unseen dark matter as it tugs on galaxies in a crowded supercluster.
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Evidence for an awesome upheaval in a massive galaxy cluster was discovered in an image made by NASA's Chandra X-ray Observatory.
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A powerful jet from a supermassive black hole is blasting a nearby galaxy and possibly causing profound problems for planets in the jet's path.
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Black holes are dark secrets, shrouded in churning spacetime and scrunched into points smaller than an atom. In recent years, astronomers have successfully penetrated some of their mysteries, but fundamental questions about what they are and how they work are still unanswered.
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Astronomers are watching a galaxy rip to shreds, a finding that could help reveal how galaxies go from stellar riches to rags.
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The largest explosion ever seen in space reveals black holes to be more influential    than expected, perhaps sometimes stifling star formation in a galaxy while    gobbling up trillions upon trillions of tons of gas.
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SAN DIEGO - For decades, astronomers have sought to pin down a source for ultra high-energy cosmic rays. The distant sources must be among the more powerful events in the universe, perhaps the creation of black holes or the mergers of galaxies.
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The center of our galaxy is approximately    27,000 light-years away in the direction of the constellation Sagittarius. At    its core, as scientist have known for some time, lies a supermassive black hole    surrounded by millions of stars, all huddled far more closely than in the galactic    outskirts where our Sun resides.
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True Identity of a Dwarf Galaxy RevealedNew data obtained on the apparent celestial couple, NGC 5011 B and C, taken with the 3.6-m ESO telescope, reveal that the two galaxies are not at the same distance, as was believed for the past 23 years.
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US scientists working with images from the Hubble Space Telescope have identified what may turn out to be some of the earliest star-forming galaxies.
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When it comes to matter, anyway Blackholes all gobble up matter in the same way, whatever their size, new research has found. UK astronomers say that the same processes are at work inside all black holes: the only difference is that of scale.â¦
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The world's biggest collider hopes to create a smorgasbord of exotic particles, from the so-called God particle to dark matter and maybe even miniature black holes. John Borland goes to the edge of theory.
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Hundreds of rogue black holes may be roaming around the Milky Way waiting to engulf stars and planets that cross their path, US astronomers said Wednesday.
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The Chandra telescope has seen huge gas clouds in space in the act of merging to form a massive galaxy cluster.
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Most unusual New images from the Japanese infrared space telescope AKARI have revealed giant star-forming regions on the edge of the spiral galaxy M101. The findings suggest M101 is something of a special case, since star formation more usually happens in the denser central part of spiral galaxies.â¦