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Hubble Observes Supermassive Black Holes Ejecting Dying Stars from Host Galaxies
A new analysis of 13 supernovae — including archived data from NASA’s Hubble Space Telescope — is helping astronomers explain how some young stars exploded sooner than expected, hurling them to a lonely place far from their host galaxies.
Astronomers hypothesize that a pair of supermassive black holes in the merging galaxies can provide the gravitational slingshot to rocket the binary stars into intergalactic space. Hubble observations reveal that nearly every galaxy has a massive black hole at its center.
According to astronomer Ryan Foley’s scenario, after two galaxies merge, their black holes migrate to the center of the new galaxy, each with a trailing a cluster of stars.
As the black holes dance around each other, slowly getting closer, one of the binary stars in the black holes’ entourage may wander too close to the other black hole. Many of these stars will be flung far away, and those ejected stars in surviving binary systems will orbit even closer after the encounter, which speeds up the merger.
Please join +Tony Darnell Dr.+Carol Christian and +Scott Lewis as they discuss these observations with lead investigator Dr. Ryan Foley of the University of Illinois. As always, we welcome your questions and comments.
Read more here:
http://hubblesite.org/newscenter/archive/releases/2015/28/
#Space #astronomy #blackholes #hubble #galaxies #cosmology
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15 Missing Planes That Were Never Found
From flight MH370 to disappearances linked to the Bermuda Triangle, we count 15 missing planes that were never found.
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LEGO DC Comics Super Heroes: Justice League: Attack of the Legion of Doom – “Welcome to Your Defeat”
One super-villain is bad enough, but things get far worse when the Justice League confronts an entire team of them in this clip from the newest LEGO DC Comics Super Heroes movie, Justice League: Attack of the Legion of Doom.
LEGO DC Comics Super Heroes: Justice League: Attack of the Legion of Doom is now available on Blu-Ray Combo Pack, DVD and Digital HD.
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Skating the Ancient Road to Kashgar – The Silky Way – Chapter 4
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The Silky Way wraps up in Kashgar, the oasis city on the western boarder of China, Tajikstan, and Kyrgyztan. The guys immediately go to a meat market and ride some camels before jumping on their boards. China’s plazas turn out to be staple spots at all the stops, and Daniel Pannemann lands the biggest backside 180 of the whole tour.
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IMPACT In 60: GFW Takeover?, Jeff Hardy Returns, New Dollhouse Member, More! (Aug 26, 2015)
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