Daily Extra :
exponential notation: 1.23e4 means "1.23 times 10 to the fourth power" or 12,300; "5.67e -8" means "5.67 divided by 10 to the eighth power" or 0.0000000567.
Who Was Born Today?:
Who Died Today?:
Today in History:
Galileo - USA & Europe Jupiter Orbiter/Atmospheric Probe - 2,222 kg - (October 18, 1989) used gravity assist techniques to pick up speed by flying past Venus. Galileo was designed to study Jupiter's atmosphere, satellites and surrounding magnetosphere for 2 years. It then flew past the Earth & Moon on December 8, 1990 and then again on December 8, 1992. It has made encounters with asteroid 951 Gaspra on October 29, 1991, and asteroid 243 Ida on August 28, 1993.
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.
1997: Comet Shoemaker-Holt 2 Closest Approach to Earth (1.9245 AU)
1997: Soyuz TM-25 launches to the MIR
