Black Holes
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Scientists from China have built a device that can trap and absorb microwaves coming from all directions with a 99% absorption rate - a property that makes the device simulate, to some extent, an astrophysical black hole.
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A new computer model shows conclusively for the first time that a particle collision really can make a black hole, though the researchers are quick to point out that the experiment assumed energies a quintillion times higher than existing colliders (ex. the Large Hadron Collider).
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Researchers are cautiously optimistic that experiments at the Large Hadron Collider could produce tiny black holes -- not large enough to threaten the earth -- but sufficient to test theories on how black holes could be used for energy production or even starships.
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Researchers in China have successfully demonstrated a theory proposed earlier this year by creating an artificial black hole using metamaterials.
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Researchers at the Israel Institute of Technology, in Haifa, say that they've created the sonic equivalent of a black hole in a Bose-Einstein Condensate which should allow the eventual discovery of Hawking radiation.
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As if forecasting whether asteroids will hit the Earth wasn't hard enough, it now seems that primordial black holes could surprise us by nudging a rock or two our way.
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An artificial black hole has been simulated in a laboratory by scientists using lasers at St Andrews University.
Intense light pulses were used to create an artificial event horizon - the defining feature of a black hole known as the "point of no return".
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An exotic theory, which attempts to unify the laws of physics by proposing the existence of an extra fourth spatial dimension, could be tested using a satellite to be launched in 2007. Such theories are notoriously difficult to test. But a new study suggests that such hidden dimensions could give rise to thousands of mini-black holes within our own solar system – and the theory could be tested within Pluto’s orbit in just a few years.
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Nearly all of the information that falls into a black hole escapes back out, a controversial new study argues. The work suggests that black holes could one day be used as incredibly accurate quantum computers -- if enormous theoretical and practical hurdles can first be overcome.
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Black holes are staples of science fiction and many think astronomers have observed them indirectly. But according to a physicist at the Lawrence Livermore National Laboratory in California, these awesome breaches in space-time do not and indeed cannot exist.
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