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Originally posted by Simon666
The chance is smaller than a star coming close enough to the earth to change its orbit, swallow it or fry it. Space is so empty that the chance of stars coming close to each other - if not formed together at least - is very small.
Originally posted by TJ11240
Originally posted by Simon666
The chance is smaller than a star coming close enough to the earth to change its orbit, swallow it or fry it. Space is so empty that the chance of stars coming close to each other - if not formed together at least - is very small.
Agreed. The nearest star is 4.2 light years away. I think that we can all rest easy tonight.
Originally posted by inspiringyouth
I don’t think theres to much to worry about seeing how black hole don’t move because time stops inside blackholes which means that in order for something to move it needs time and distance… well seeing how time stops at the “event horizon” the blackhole no longer moves… www.madsci.org...
And seeing how the closest blackhole is 1,600 light years from earth, and the closest star exempting the sun is Alpha Centauri an its 4.336 light-years away and I don’t think it’s a “red giant” yet or expanded star then its not gonna explode anytime soon… Same with the earth… So Id be more worried about Mayan calendars and PY ( prophet Yaheysdasf or whatever) then a blackhole swallowing Earth…
Originally posted by inspiringyouth
I don’t think theres to much to worry about seeing how black hole don’t move because time stops inside blackholes which means that in order for something to move it needs time and distance… well seeing how time stops at the “event horizon” the blackhole no longer moves… www.madsci.org...
Originally posted by TJ11240
Two Questions:
How many Black Holes are in our Galaxy?
How does X-Ray and Gamma Radiation escape the event horizon? Are they that much more energized than visible light?
Black holes are usually thought of as objects with such strong gravity that nothing, not even light, can escape from them. However, Stephen Hawking has shown that black holes can radiate energy. The reason goes back to quantum mechanics and the uncertainty principle. For very brief periods of time, matter or energy can be created from empty space because no such thing as truly empty space exists. Hawking realized that if a particle/anti-particle pair came into existence near the event horizon of a black hole, one might fall into the hole before annihilating its anti-particle. The other particle could then escape the gravitational clutches of the black hole, appearing to an outside observer as radiation.