News tagged with big bang

What are white holes?

Black holes are created when stars die catastrophically in a supernova. So what in the universe is a white hole?

dateOct 09, 2015 in Astronomy
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Why is space three-dimensional?

(Phys.org)—The question of why space is three-dimensional (3D) and not some other number of dimensions has puzzled philosophers and scientists since ancient Greece. Space-time overall is four-dimensional, or (3 + 1)-dimensional, ...

dateMay 03, 2016 in General Physics feature
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