November 16, 2007

2.4 APOD

Cosmic Rays From Galactic Centers
The lavendar rays look like lightning from up high with little sparks coming out from its sides. I didn't know cosmic rays can be this color. Ultra high energy cosmic rays have sky directions that are consistent with nearby galactic nuclei. These galactic centers emits alot of light and are powered by black holes. This picture shows a cosmic ray striking Earth, causing a particle shower.

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