Daily Extra :
Astronomy & Space Word of The Day
solar wind: The wind from the Sun. More specifically, particles, usually electrons and protons, continually streaming away from the corona of the Sun. The solar wind is extremely sparse, containing only a few fast moving particles per cubic centimeter at the Earth.
Today in History:
1903: First sustained powered airplane flight, by Orville Wright at Kitty Hawk, North Carolina.
1972: Apollo 17 - USA Manned Lunar Lander (December 7-19, 1972) Crew: Eugene A. Cernan, Harrison H. Schmitt, and Ronald B. Evans. Cernan and Schmitt landed on the moon on December 12, 1972. The landing site was Taurus-Littrow at latitude 20°10' N and longitude 30°46' E. They returned 110.5 kg of rock and soil samples. The astronauts covered 30.5 kilometers in the lunar rover during a 75-hour stay.