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On This Date in History - February 15


Galileo Galilei

Galileo Galilei

Public Domain

Daily Extra :

Astronomy & Space Word of The Day

shooting star: A meteor.

Who Was Born Today?:

1564: Galileo Galilei was born in Pisa (now in Italy)., Pisa Italy, astronomer/physicist
1858: William Pickering, Boston, astronomer, 9th and 10th moons of Saturn
1935: Roger B Chaffee, Grand Rapids Michigan, Lt Cmdr USN/astronaut
1944: Aleksandr A. Serebrov, U.S.S.R., cosmonaut, Soyuz T-7, T-8, TM-8, TM-17
1950: Nikolai Sergeivich Grekov, Russia, cosmonaut

Who Died Today?:

Today in History:

1973: U.S.S.R. launches Prognoz 3 to study sun (589/200,300 km)

1985: STS 51-E vehicle moves 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.

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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