Black holes: to the event horizon and beyond
NOVA Presents
00:00
The Shape of Space Time
To wrap our heads around black holes, we first need to talk about space time. The idea of space time is part of Albert Einstein's theory of special relativity. In this theory, space and time are woven together into a four dimensional fabric called space time with three dimensions of space and one dimension of time. That fabric is flexible like a trampoline or the skin of a drum, capable of being stretched or bent by objects with mass or energy. It requires incredible concentrations of mass and energy to notice that things are deforming space and time. We have 26,000 light years to travel, we've got a few minutes.
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