NASA explains how a safely view a 'ring of fire' annular solar eclipse. WARNING: People should always use protective solar ...

The Sun’s influence extends far beyond its blazing surface. The solar wind, a torrent of charged particles, streams through the solar system, shaping planetary atmospheres and space weather. Despite ...

A value called Bz indicates how far south the solar wind's magnetic field is pointing, which can predict how likely the northern lights are to occur.

Columnist Llewellyn King writes that an electricity shortage is bearing down on the US and there are no easy fixes. It could ...

That ordinary smartphone in your pocket could be a powerful tool for investigating outer space. In a new study, researchers ...

Encounter Blew Away Most of Smaller Galaxy's Gaseous Halo In a dramatic tale of survival captured by the Hubble Space ...