Friday, September 7, 2007

APOD 1.1

TIME TUNNEL
This photograph is really amazing. It's interesting because it allows you to see both stars and galaxies. The closest stars are the skipey looking ones, while the galaxies are the fuzzy looking objects. It's impressive that it was taken by an amature astronomer. There is even a quasar in the photo that is 12.7 billion light years away. Quasars are among the most distant mesuarble objects. They are interesting because they emit huge amounts of energy but it's debated where the energy comes from. Some astronomers believe that the energy comes from a giant black hole that feeds on gas, dust, and other stars.

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