June 24, 1995
On your birthday, photons that left distant stars before humans walked the Earth finally completed their journey. You began yours.
Gamma Ray Crab, Geminga
Birthday · June 24, 1995
A little universe, just for you
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APOD published June 24, 1995. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.
The Crab Nebula and Geminga in Gamma Rays Picture Credit: NASA, Compton Gamma Ray Observatory Explanation: What if you could "see" in gamma-rays? If you could, these two spinning neutron stars or pulsars would be among the brightest objects in the sky. This computer processed image shows the Crab Nebula pulsar (below and right of center) and the Geminga pulsar (above and left of center) in the "light" of gamma-rays. Gamma-ray photons are more than 10,000 times more energetic than visible light photons and are blocked from the Earths's surface by the atmosphere. This image was produced by the high energy gamma-ray telescope "EGRET" on board NASA's orbiting Compton Observatory satellite. For more information see Compton Science Support Center release. We keep an archive of previous Astronomy Pictures of the Day. The sky is filled with breathtaking pictures, many of which are available on the World Wide Web. Each day we feature a different picture of some part of our fascinating universe, along with a brief explanation written by a professional astronomer. Astronomy Picture of the Day is brought to you by Robert Nemiroff and Jerry Bonnell . Original material on this page is copyrighted to Robert J. Nemiroff and Jerry T. Bonnell.