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Researchers are watching the first scenes of a cosmic show that’s
expected to heat up over the next year as a giant gas cloud approaches
the supermassive black hole at the center of our galaxy.By mid-2013, the cloud is expected to pass in the
vicinity of the black hole, known as Sagittarius A*, at a distance of 36
light-hours, or less than 25 billion miles (40 billion kilometers).
Black holes are gravitational singularities so dense that nothing,
not even light, can escape their grip. They can only be detected by
their gravitational influence on their surroundings, or by the blazing
swirl of material being sucked down into their maw.Read More