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

For much of January and February, you have the chance to see six planets in our solar system after dark, although two — Uranus and Neptune — will be hard to see without a telescope or high-powered ...

More than a month after a flooded data center at Stanford University knocked out data processing operations for two NASA sun-studying spacecraft, solar scientists are starting to regain access to ...

Get Instant Summarized Text (Gist) NASA's Solar Dynamics Observatory has identified flickering coronal loops in the sun's atmosphere that precede large solar flares. These variations in extreme ...