Harvesting solar energy in orbit and beaming it down to Earth is a decades-old idea. Now, a raft of companies say they could make it a reality.

Hundreds of people filled Caltech's Beckman Auditorium on Monday evening for the West Coast premiere of "Bright Harvest: Powering Earth From Space," a

The risk of a cosmic body striking Earth—or exploding in the sky—may be higher in 2032 and 2036, researchers have cautioned.

Evidence suggesting that some type of intelligence was observing the Earth from space long before humans launched their first satellite has baffled the scientific community.A recently

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three dimensions.

As part of the ongoing effort, a NASA-supported team recently published one of the most detailed maps yet of the seafloor.

Those space tornadoes can still harm Earth’s electrical grids and digital systems. Recently, researchers including UM climate and space scientist Chip Manchester designed a completely new simulation system to account for the smaller,

A 2023 astronaut photo shows off an unusual cranium-like structure appearing to stare up into space from the floor of a large volcanic caldera in Chad.

SpaceX launched more than two dozen Starlink satellites into low Earth orbit on Wednesday as part of Elon Musk's bid to expand global Internet access.