Studying the mystery of Uranus's curiously weak radiation belts

When the Voyager 2 spacecraft visited Uranus almost 50 years ago, it discovered a magnetic mystery. Unlike on most planets, the ice giant's magnetic field is tilted roughly 60° away from its spin axis, creating an asymmetric ...

Image: Crater 'tree rings' on Mars

This feature could easily be mistaken for a tree stump with characteristic concentric rings. It's actually an impressive birds-eye view into an ice-rich impact crater on Mars. Tree rings provide snapshots of Earth's past ...

Surprise! TESS shows Alpha Draconis undergoes eclipses

Astronomers using data from NASA's Transiting Exoplanet Survey Satellite (TESS) have shown that Alpha Draconis, a well-studied star visible to the naked eye, and its fainter companion star regularly eclipse each other. While ...

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