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black holes are invisible because its gravitational pull is so strong even light cant escape from it. so what scientists do is they look at things around the black hole. if there is a black hold near a planet or star that objects orbit will be altered and it will be heating up from the friction of going into the hole.
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∙ 12y ago
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How do you know black hole exists?
They know because the effect the black hole has on other matter.
Is a black hole know as a singularity?
No the singularity is at the core of the black hole.
How many stars did this black hole eat?
Don't know which black hole.
How do scientist know were a black hole is?
Because there is usually nothing around the spot where the black hole is because the black hole "ate" everything.
Can you make a black hole inside a black hole?
We know nothing about the conditions within a black hole, but it seems unlikely that a black hole could exist within a black hole, or even if this concept would have any meaning at all.
How soon will humans know if the earth is in a black hole?
Never, because if we can thrive in it than we are not in a black hole
How do astronomers know the black hole exist?
Astronomers know because they have studied star patterns and placements and know when there has been a change between where there is a black hole and where there isn't one.
What is the name of a distant galaxy with a black hole?
As far as we know, most, if not all galaxies have a massive black hole at their centre.
What impact did Stephen hawking's black hole theory have on people's lives?
people now know more about the black hole.
Will the galaxy ever get sucked in to a black hole?
no the galaxy is way to big for a black hole to do much in fact we now know that there is a supermassive black hole in the center of our galaxy right now.
Who been into the black hole in space?
No one we know about
What planet was sucked into a black hole?
None that we know of.
