Daily Extra :
Astronomy & Space Word of The Day
stratosphere: The layer of the atmosphere above the troposphere and below the mesosphere where the temperature increases with height.
Today in History:
1971: Apollo 15 - USA Lunar Manned Lander (July 26 to August 7, 1971) Crew: David R. Scott, James B. Irwin, Alfred M. Worden. Scott and Irwin landed on the moon on July 30, 1971. The landing site was Hadley-Apennine at latitude 26°6' N and longitude 3°39' E. They collected samples amounting to 76.8 kilograms. A lunar Roving Vehicle was carried on this mission (and all subsequent ones) which allowed the astronauts to travel several kilometers from the landing site. The commander service module was the first to carry orbital sensors and to release a subsatellite into lunar orbit. Worden performed the first deep spacewalk to retrieve film from the service module.
