Sciences

Europa is the sixth largest moon of Jupiter in our solar system. Europa has attracted attention because of a possible subsurface ocean...

Johannes Kepler (1571-1630), the German assistant and successor to Tycho Brahe, was a Copernican from his twenties on, and was destined to bring about acceptance of the heliocentric concept. That is, he believed the sun rather than the earth was the center of the planetary system. (CVC website)....

The best-selling book about American astronauts, The Right Stuff, describes the skills and the characters of the first Project Mercury team. It outlines men like Alan Sheppard, John Glenn, Scott Carpenter, Gordon Cooper, Wally Shirra, Deke Slayton, and Gus Grissom....