Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a ...

France and the United States are planning a second joint mission of coordinated satellite maneuvers in orbit, part of a ...

Solar storms —giant bursts of energy from the Sun that disturb the Earth’s magnetic field—may play a role in triggering heart ...

A cluster of space weather satellites has blasted off to cast fresh eyes on solar storms. The three satellites belonging to ...

From Earth, the International Space Station will look like bright, fast moving, dot in the sky. The International Space ...

The James Webb Space Telescope has, for the first time, measured the carbon-rich concoction that forms a moon-forming disk of ...

A SpaceX rocket lifted off Wednesday from the Kennedy Space Center in Cape Canaveral, carrying NASA's Interstellar Mapping ...

IMAP (short for "Interstellar Mapping and Acceleration Probe") is the primary payload on today's flight. The roughly $600 ...

A 2017 satellite photo shows the stark contrast along the boundary between a giant field of golden "star dunes" and a barren ...