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Post by leanne. on Feb 23, 2011 3:15:41 GMT 10
Baka daw hihigupin na ng black hole ang ating mundo- wakas na ba? Handa na ba tayo? ;D
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Post by dabeyonder on Mar 5, 2011 17:12:21 GMT 10
Matagal pa mangyayari iyon. Milyon-milyong taon pa iyon magaganap pero sa panahong Disyembre 2012 ay mahihilera ang ating mundo sa tinatawag na Galactic Equator at magaganap ang siyentipikong basehan na kung tawagin ay Galactic Alignment.
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Post by linsi on Jun 17, 2011 10:48:59 GMT 10
What makes this even stranger is that the black hole, located in the constellation Draco (The Dragon) about 4 billion light years, or 24 trillion miles (38.62 trillion km) from Earth,
was sitting quietly, not eating much, when a star about the mass of our Sun moved into range.
Black holes are invisible, but astronomers can infer their existence because the material they pull in lights up before it gets sucked in.
Black hole shreds star, sparking gamma ray flash
By Deborah Zabarenko – Thu Jun 16, 4:41 pm ET WASHINGTON (Reuters) – A monster black hole shredded a Sun-like star, producing a strangely long-lasting flash of gamma rays that probably won't be seen again in a million years, astronomers reported on Thursday.
That is definitely not the norm for gamma ray bursts, energetic blasts that typically flare up and end in a matter of seconds or milliseconds, often the sign of the death throes of a collapsing star.
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Post by linsi on Jun 17, 2011 10:49:42 GMT 10
Black holes are invisible, but astronomers can infer their existence because the material they pull in lights up before it gets sucked in. In this case, though, the black hole feasted on one star -- about the same mass as our Sun -- with such relish that it tore the star apart before gulping it down. As it did so, the black hole emitted powerful gamma ray jets from its center as bits of the dying star were turned into energy. The black hole's gravitational pull was so great that it exerted what's called a tidal disruption on the passing star. Astronomers could use this observation to help them learn more about how black holes grow, Bloom said.
"We still don't understand how black holes and the universe grow," he said. "We think most black holes start off as being no more than the mass of our Sun ... How they go from 10 solar masses to a billion solar masses is critical."
There is a strong connection between the mass of black holes and the mass of the galaxies that host them, with black holes feeding on gas and stars that come near.
news.yahoo.com/s/nm/us_space_blackhole
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