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It is impossible to see a black hole, it would be like looking for a needle in a hay stack. Astronomers use clues to find back holes without actually seeing them. They see how a black hole may affect a nearby star or gas cloud.
The "first" discovery of a black hole was made by a satellite searching for x-rays in space. The satellite was looking in the constellation of Cygnus the Swan when it found x-rays coming from a star. This was weird because most stars are not hot enough to give off large amounts of x-rays.

Black holes do give off x-rays. As matter from a nearby star falls into a black hole, it is changed into energy, in the form of high temperatures. This energy is released from the black hole as x-rays. The x-rays found by the satellite were shown to have been coming from a point very close to the star. This made a strong case for a black hole.

2007-03-24 09:38:13 · answer #1 · answered by Anonymous · 0 0

Well, black holes are collapsed stars. Its complicated but when a star dies, sometimes it falls on itself. Its hard to study because satelites, probes and other electronic explorers would fall in. A few things about them are the fact that they have such a strong suction that even light can't escape it, hence its name.

2007-03-24 09:41:30 · answer #2 · answered by ? 2 · 0 0

You do not find a Black Hole by looking at one or looking for one. They are found by the influence they have on the space around them.

2007-03-24 10:29:33 · answer #3 · answered by Anonymous · 0 0

Black holes are a theory only. Read anything by Stephen Hawking.

2007-03-24 09:38:04 · answer #4 · answered by Moon Man 5 · 0 1

black holes can only be seen when they're attracting matter into them or when they're distorting light from another star.

2007-03-25 09:49:33 · answer #5 · answered by neutron 3 · 0 0

in pittsburgh, they're found on liberty avenue. common features are short skirts , high boots, and a wig.

2007-03-24 09:40:03 · answer #6 · answered by pinhed_1976 6 · 0 1

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