Stargazers will be treated to a dazzling six-planet "alignment" this January.

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

"Some of the extreme ultraviolet light above active regions flickers erratically for a few hours before a solar flare," ...

For decades, scientists have tried in vain to accurately predict solar flares—intense bursts of light on the sun that can ...

NASA's IMAP mission will delve into the mysteries of the heliosphere, mapping its boundaries and studying solar wind ...

NASA's Parker Solar Probe has beamed home its first detailed update eight days after making a record-breaking approach to the sun, the agency announced. The spacecraft confirmed its systems and ...

More than a month after a flooded data center at Stanford University knocked out data processing operations for two NASA sun-studying ... processing most near-real-time [Solar Dynamics Observatory ...

The two Voyager spacecraft continue to be incredibly useful to Nasa, and losing it might have meant losing some of our most important information about the very edges of our solar system.

The Dream Chaser, built by Sierra Space, undergoing testing at NASA’s Neil Armstrong Test ... and catalog asteroids and comets in our solar system, including those that could slam into Earth ...

A famous illustration of Saturn's moon Titan got it all wrong. Never mind -- what we imagine space to be, and what we know it is, can both evoke the sublime.