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Black Holes May Get Supermassive by Eating Stars

The supermassive black holes thought to lurk at the heart of most galaxies attained their enormous sizes by eating stars, a new study suggests.Some theories hold that these galactic black holes  — which seem to contain millions to billions of times the mass of our sun — get so hefty by consuming huge quantities of gas or merging with other black holes; others suggest the objects were simply born large. But the new study reports that they likely get supermassive mainly by ripping apart double-star systems and devouring one of the stars."I believe this has got to be the dominant method for growing supermassive black holes ," lead author Benjamin Bromley of the University of Utah said in a statement.The team's work follows up on the 2005 discovery of hypervelocity stars, which were flung out of our Milky Way's center by gravitational forces and are traveling at speeds of 1.5 million mph (2.4 million kph) or more — fast enough to escape the galaxy and go zooming off into the depths of spac...

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  1. NASA's Black Hole -Hunting Space Telescope to Begin Science Mission

    A NASA space telescope designed to hunt for black holes and other mysteries of the universe passed a key test in orbit last week, setting the stage for the X-ray obs...

  2. Black Hole 'Bonanza': Millions Found by NASA Space Telescope

    A jackpot of previously unknown black holes across the universe has been discovered by the infrared eyes of a prolific NASA sky-mapping telescope.The cosmic find com...

  3. Monster Black Hole Caught Swallowing Unlucky Star

    Call it a Cosmic Scene Investigation: For the first time, scientists have identified a stellar victim of a giant black hole — an unlucky star whose death may ultimat...

  4. NASA Launches Space Telescope to Hunt Black Holes

    This story was updated at 12:31 p.m. EDT.NASA's newest space telescope, an ambitious X-ray observatory, launched into orbit today (June 13) on a mission to peer deep...

  5. Cosmic Surprise: Black Holes Older Than Galaxies

    When galaxies initially formed, they weren't the first in the cosmic neighborhood.The supermassive black holes, which reside at the center of galaxies, probably move...

  6. Galaxy's Giant Black Hole Jet a Cosmic Afterburner

    A humongous jet of material ejected from the center of a distant galaxy looks strikingly similar to the afterburner flow of a fighter jet, and scientists say it may ...

  7. Black Holes Spew Out Surprise

    Black holes come in a variety of sizes, ranging from 10 times the mass of the sun to a billion times as massive. But new research shows that black holes of completel...

  8. Early Black Holes Grew Fast, Merged Quickly

    Our Milky Way galaxy contains a supermassive black hole at its core, as do most if not all other large galaxies in the modern universe. These gravity wells can have ...

  9. Monster Galaxy's Core Is Biggest Ever Seen

    A faraway galaxy's core is the largest ever seen, and it may have been puffed up by the merger of two black holes, a new study reports.The core of the elliptical gal...

  10. Multi-Telescope View of Giant Black Hole Is 2 Million Times Sharper than Human Eye

    Scientists using three telescopes spaced thousands of miles apart have caught the best look ever of the center of a distant quasar, an ultra-bright galaxy with a gia...

  11. Milky Way's Giant Black Hole to Eat Space Cloud in 2013

    The colossal black hole at the center of our Milky Way galaxy will soon to get a big, tasty meal, astronomers say.A humongous gas cloud is on a collision course for ...

  12. Cosmic hurricane: black hole has 20 million MPH winds

    Scientists have measured the fastest winds yet observed from a stellar-mass black hole, shedding light on the behavior of these curious cosmic objects.The winds, clo...

  1. Surprising 'mini' supermassive black hole found in unlikely home

    Using NASA's Chandra X-Ray space telescope, astronomers have discovered one of the smallest supermassive black holes in middle of an unlikely host galaxy.The little ...

  2. Surprising 'Mini' Supermassive Black Hole Found in Unlikely Home

    Using NASA's Chandra X-Ray space telescope, astronomers have discovered one of the smallest supermassive black holes in middle of an unlikely host galaxy.The little ...

  3. Gigantic Black Holes Just Got Even Bigger

    A number of the largest black holes in the universe may be even bigger than previously thought, researchers say."Ultramassive black holes — that is, black holes with...

  4. Black -hole bonanza discovered near Earth

    Astronomers have discovered 26 new likely black holes in the neighboring Andromeda galaxy — the largest haul of black hole candidates ever found in a galaxy apart fr...

  5. Most Distant Black Hole X-Ray Blast Discovered

    The most distant black hole X-ray jet ever observed has been discovered some 12.4 billion light-years from Earth, giving astronomers a peek at the life of giant blac...

  6. Giant Black Hole Likely Booted from Home Galaxy

    A supermassive black hole is apparently being ejected from its host galaxy at a fantastic speed, suggesting that such light-gobbling monsters may roam freely through...

  7. Monster Black Holes Stifle Star Birth

    The intense energy and winds from gigantic black holes can block the birth of stars as scientists have long suspected, a new analysis of distant galaxies reveals.Mos...

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