Shuttle Columbia and a crew of orbital mechanics rocketed off Friday on a complex mission to service and repair the Hubble Space Telescope, one that will involve five of the most challenging spacewalks ever staged by NASA.  Pixel Gallaxies Screensaver: Colorful colliding galaxies; gravitational model with optional trails and clear background. Beginning amateur? Experienced observer? This is the place for you. Let's talk about the stars, planets, telescopes and observing. Find people in your area who are into astromony, form star parties, share experiences and photos. If it is about astronomy, you will find it here. David or Jose, Managers
2005 Mars encounter.jpg
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