Daily Extra :
Astronomy & Space Word of The Day
subduction zone: A place on the surface of the Earth where two plates move toward each other, and the oceanic plate plunges beneath the other tectonic plate.
Today in History:
1972: Apollo 16 - USA Manned Lunar Lander (April 16-27, 1972) Crew: John W. Young, Charles M. Duke, Jr., Thomas K. Mattingly II. Young and Duke landed on April 21, 1972, at the Descartes crater located at latitude 9°00' N and longitude 15°31' E. They deployed instruments, drove the lunar rover, and collected 94.7 kilograms of samples during a 71-hour surface stay.