Brighter Than The Sun: Gamma Ray Moon

If you could see gamma rays - photons with a million or more times the energy of visible light, the Moon would appear brighter than the Sun according to NASA astronomers, as shown by this image of the Moon from the Energetic Gamma Ray Experiment Telescope (EGRET) in orbit on NASA's Compton Gamma Ray Observatory from April 1991 to June 2000. 

High energy charged particles, known as cosmic rays, constantly bombard the unprotected lunar surface generating gamma-ray photons. EGRET's gamma-ray vision was not sharp enough to resolve a lunar disk or any surface features, but its sensitivity reveals the induced gamma-ray moonglow.

NASA APOD

Comments

[EvilCosmicMonkeyfrom Knoxville]

This is COOL ! It would be great to see more detail of the lunar surface, though.

[bitirim]

thank you

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