On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a ...

NASA invites the public to join the Space Umbrella project, analyzing MMS data to study magnetic reconnection and solar wind interactions affecting space weather and technology.

A vast, magnetically tangled sunspot has rotated into direct view of Earth, raising the prospect of powerful solar eruptions in the coming days. The active region is large enough to dwarf our planet ...

Astrophotographer Thierry Legault captured the International Space Station transit the Sun. The NASA astronauts were ...

A solar storm is a catchall term that describes any disturbance in the sun that involves the violent ejection of solar material into space. This can come in the form of coronal mass ejections, where ...

NASA has always made it a point to encourage us citizen scientists to lend them a hand. Right now, they could really use your help protecting Earth against waves of punishing, disruptive solar winds.

Why do some places wait 1,000 years to see a total solar eclipse while others get two in a decade? The surprising orbital ...

NASA’s Chandra X-ray Observatory captured a protective astrosphere around HD 61005, providing direct observation of a Sun-like star’s wind interacting with surrounding interstellar material ...

A Mars spacecraft launched from Cape Canaveral, Florida, has been AWOL. But NASA hasn't given up hope of restoring contact with the MAVEN orbiter.