- It we were to create a black hole with the mass of our earth, it would be just a mm across
* Are believed to be at the center of every galaxy
A black hole has only a "center" and a "surface"
- The black hole is surrounded by an event horizon - Which is the point from Which light cannot escape
- The center of the black hole is called a singularity
event
horison
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Singularity
-Big Bang Theory
- The big bang Theory is the dominant model for the origin of the universe
- The universe began as a wiolent expansion
- All matter and space were created from a single point of pure energy in aninstant
- The expension happened - 13.7 billion years ago and began as the size of a single atom
- The Big Bang Theory
- Energy from the intiol expansion was transformed into matter
- E=mc2