Greenland's mountains greatly affect local climate patterns.

NASA is launching an emergency return for an astronaut with a "serious medical condition" on the International Space Station.

A new study assesses the risk of space-based solar power satellites damaging nearby orbital space infrastructure with ...

Four astronauts are hours away from strapping into a spacecraft and departing the International Space Station about a month ...

NASA says it is “very unlikely” the agency will be able to recover a Mars spacecraft that has been out of contact for more ...