The BIG Bang. Hubble Telescope This image is taken of galaxies that are billions of light-years away. Light takes a very long time to travel to Earth.
Matter Unit BIG BANG NOTES. The Big Bang Theory The violent expansion of an extremely small, hot, and dense body of matter between 12 and 18 bya (billion.
The Big Bang Theory. Galaxies: islands of stars making up the universe.
The Big Bang Theory
