Written by the former chief historian of NASA, the book examines the evolution of our cosmic understanding—from early civilizations to the present day ...

A "bus-sized" asteroid being tracked by NASA will zoom safely past the Earth on Wednesday as both celestial objects make a close approach while orbiting around the sun. The space rock, known as ...

By Eric Lipton First Images of the Sun’s Flares Released From a New Space Telescope NASA and the U.S. Poet ... who are already in orbit. During an equinox, places around the globe experience ...