An M3-class solar flare that lasted about 3 hours created a massive coronal mass ejection. The Solar Dynamics Observatory (SDO) and the Solar and Heliospheric Observatory (SOHO) captured the fireworks ...

The Space Weather Prediction Center has issued a G4 (Severe) geomagnetic storm watch for June 2, which could result in ...

Forecasters of space weather keep an eye on the sun to stay ahead of eruptions of solar material that have the ability to shut down power grids on Earth, disrupt aircraft routes, global communications ...

NASA has revealed that astronauts, cosmonauts and tourists may not have left Earth's atmosphere, fueling conspiracies and ...

Discovered in late March 2025 through data from the SWAN instrument aboard NASA and ESA’s Solar and Heliospheric Observatory, this long-period comet is making its journey to the inner solar system ...

SOHO, the Solar and Heliospheric Observatory, carries a dozen detectors that record everything from high-speed solar-wind protons to low-speed solar oscillations. STEREO consists of a pair of ...