Facts:
- Heavy objects warp the fabric of space itself.
- In a black hole, space becomes infinitely curved: As you go deeper into the black hole, space becomes ever more curvy until, at the centre, it becomes infinitely curved. This is the singularity.
- The boundary of a black hole might be a blazing firewall.
- Once you fall in, there's no coming out.
- Nobody is sure what lies inside a black hole.
- Black holes distort passing light rays, causing "lensing".
- Black holes can pull material away from nearby stars.
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| Images and site from BBC-Earth: The strange fate of a person falling into a black hole |
- Entanglement: Widely-separated particles can be spookily "entangled". Two sets of particles that are separated in space are mysteriously "entangled". They are part of a single, indivisible whole, so that the information needed to describe them can't be found in either set alone, but in the spooky links between them.
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