An unmanned Atlas 5 rocket blasted off from Cape Canaveral Air Force Station on Friday carrying the first satellite in a new military network designed to give cellphone-like 3G communications to tr

A nuclear-powered rover as big as a compact car is set to begin a nine-month journey to Mars this weekend to learn if the planet is or ever was suitable for life.

NASA unveiled plans on Wednesday for a mammoth deep-space rocket to carry astronauts to the moon, Mars and other destinations beyond the International Space Station.