SpaceX says it will fly two people to the moon next year...

Global warming could mean that mountain snow melts at a slower pace _ a peculiar finding that might be bad news for the West and other regions that depend on snow for water...

NASA is weighing the risk of adding astronauts to the first flight of its new megarocket...

NASA's Jupiter-circling spacecraft is stuck making long laps because of sticky valves...

For the first time, astronomers have discovered seven Earth-size planets orbiting a single nearby star _ and these new worlds could hold life...

Cool facts about 7 Earth-size planets in constellation Aquarius that might hold life...

John Glenn continues to be an inspiration 55 years after becoming the first American to orbit the Earth...

SpaceX has launched its first rocket from NASA's historic moon pad...

The Traveling Telescope project visits some of Kenya's most remote areas, showing students the night sky and the science of astronomy with telescopes and virtual reality goggles...

The launch pad used to send Americans to the moon and shuttle astronauts into orbit is roaring back into action...