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The black holes have created endless stories, as they were
known to be enormous regions so powerful that nothing can ever escape them, not
even light. NASA scientists managed to find this time a “baby” hole, the
smallest discovered to date, lighter than other black wholes known so far. The announcement was made on March 31 by NASA’s Goddard Space Flight Center’s Nikolai
Shaposhnikov and Lev Titarchuck, who initially discovered it.
Its mass is approximately 3.8 times greater than our Sun's
(which is normally said to be able to contain a million Earths), and has a 15
miles diameter, which is pretty much the minimum size scientists predicted for
a black hole. “This black hole is really pushing the limits,” said
Shaposhnikov. “For many years astronomers have wanted to know the smallest
possible size of a black hole, and this little guy is a big step toward
answering that question.”
The black hole lies in the Milky Way Binary System known as
XTE J1650-500, scientists said, in the southern constellation Ara. Scientists found
out about the existence of the black hole years ago, but they were not able to
measure it until now. The lead scientists used the relationship between black
holes and the inner part of their surrounding disks to do that, a method detailed
in the Astrophysical Journal.
So far, researchers have assumed that the smallest black
hole that could possibly exist out there should be no smaller than three times
the weight of our Sun, otherwise it would run out of fuel and form what is
known as a neutron star. “This makes the black hole one of the smallest objects
ever discovered outside our solar system,” Shaposhnikov explained.
It may be small, but that doesn’t make it less dangerous for
any space object, scientists warned, as it is believed to have an even stronger
tidal force than larger ones found in the centers of galaxies. “if you ventured
too close to J1650’s black hole, its gravity would tidally stretch your body
into a strand of spaghetti,” Shaposhnikov warned future space adventurers.
Image Credit: http://www.nasa.gov/
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