A newly discovered impact craters on Mars, captured in striking detail by NASA’s Mars Reconnaissance Orbiter. The image, ...

(CNN) — An unmanned NASA rocket exploded early Tuesday evening. According to NASA, the Orbital Sciences Corp.’s Antares rocket and Cygnus cargo spacecraft were set to launch at 6:22 p.m. ET. It was ...

In an effort to oust the Soviets in the space race, NASA’s Mariner I spacecraft was prepared to make history as the first spacecraft to complete a flyby survey of Venus. Then, on July 22, 1962, the ...