NASA explains how a 'ring of fire' annular solar eclipse occurs and how it differs from a total solar eclipse. WARNING: ...

Hubble’s high-resolution imagery allowed researchers to hone in on more of the Bullseye galaxy’s rings — and helped confirm ...

What if Earth had massive rings like Saturn? Would our skies look breathtaking, or would the rings cause chaos on our planet?

The largest solar storm in two decades hit Earth and triggered auroras in several parts of Earth including in India as wave after wave of high-energy charged particles from the Sun rocked the planet.

Auroras have long mystified humanity. Now that we know what they are and why they happen, we can better predict how best to ...

From the awe-inspiring Ilulissat Icefjord to the serene Northern Lights dancing over frozen tundras, here are the top 10 must ...