The roots of many trees stretch out four to seven times farther than their leafy branches.
First direct evidence of a black hole
First direct evidence of a black hole The Hubble telescope has found what may be the
first direct evidence of a black hole after detecting two blobs of
gas being sucked into a massive, invisible object in space. A black
hole forms when a star collapses, and its gravitational pull is so
strong that not even light can escape. JANUARY 16, 2001
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