Are black holes black stars or holes?

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Offline thedoc

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Are black holes black stars or holes?
« on: 02/07/2014 18:30:01 »
JORDI BELMONTE asked the Naked Scientists:
A question, black holes are black stars or holes?

By the way, about time travel to the past,i am tired of listening or see documentaries about how can we travel to the past,well bad news,if you can CONTRACT the universe,of course you can't, even if you for example go back 100 years,well i don't now when you appear, for sure is not in this planet,maybe in the middle of the space who knows. I think there is only one time line,and doesn't go back only forward. Is the most stupid thing i ever heard. hey i am no one i only college graduate. sorry if i am condescending. i hope someone answer or say something.bye.

by the way if i didn't wrote well is because i am Spanish,sorry.

What do you think?
« Last Edit: 02/07/2014 18:30:01 by _system »