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On This Date in History - February 16

by Nick Greene
for About.com

Ray Structure - Halley's Comet

Ray Structure - Halley's Comet

NASA/JPL

Daily Extra :

Astronomy & Space Fact

Hurricane names are chosen from a list selected by the World Meteorological Organization. Each name on the list starts with a different letter; for example, the name of the first hurricane of the season starts with A, the next starts with B, and so on. The letters Q, U, X, Y and Z are not used.

Who Was Born Today?:

1514: Rhaticus, [Rheticus], Austrian astronomer/mathematician
1937: Valentin Vasilyevich Bondarenko, cosmonaut

Who Died Today?:

Today in History:

374: 9th recorded perihelion passage of Halley's Comet

1961: U.S. satellite Explorer 9 is launched

1965: Pegasus 1 launched to detect micro-meteors

1982: Assembled STS-3 vehicle moves from Vandenberg AFB to launch pad

1994: Clementine - USA Lunar Orbiter - (launched January 25, 1994) spent 70 days (between February 6 and May 5, 1994) in 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. 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.

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