Io is an incredibly active and extreme place, with glistening lava lakes and volcanic eruptions shooting sulfur and magma to huge heights.

Jupiter’s skies can glow with lights more intense than anything on Earth. Its polar auroras shine when charged particles ...

Where does life lurk under the ice of Antarctica? The answers keep surprising us. In January, for example, researchers found ...

Mars and the moon will also be in conjunction tonight. If you're lucky enough to have clear skies tonight, you can catch a ...

Fluorescent cave minerals are helping scientists explore how life could survive in harsh places like Europa. Far beneath ...