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On This Date in History - May 5


Daily Extra :

Astronomy & Space Word of The Day

saturation: Condition in which a surface becomes completely covered with craters, such that the addition of new craters does not increase the overall crater density.

Today in History:

1994: Clementine, USA Lunar Orbiter (launched January 25, 1994)left Lunar orbit. The official name for Clementine is 'Deep Space Probe Science Experiment' (DSPSE). It was a Department of Defense program used to test new space technology. Clementine was a new design using lightweight structure and propellant systems. It spent 70 days (between February 6 and May 5, 1994) in lunar orbit. Its four cameras mapped the surface of the Moon at 125-250 meters/pixel resolution. Clementine also used a laser to gather altimeter data which will make it possible to generate the first lunar topographic map.

Featured Astronomy Image of the Week

Check out the former Astronomy Picture of the Day. See what surprises await you this week.

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