induce dangerous currents in power grids and increase the radiation exposure of astronauts. NASA’s Solar Dynamics Observatory captured this image of coronal loops above an active region on the ...

Images captured by NASA's Solar Dynamics Observatory have revealed that "coronal loops" give off subtle flashes of ...

A NASA satellite that suddenly reappeared after going silent gets credit for the remarkable discovery—a pair of temporary ...

Intense solar flares—sudden bursts of electromagnetic radiation from the Sun—can shoot out hazardous levels of energy strong enough to reach Earth’s atmosphere. Predicting solar flares, ...

MAVEN "observes radiation, solar particles and more from high above ... a process that could affect whether signs of ancient microbial life are preserved there," said a NASA statement.