New research suggests there may be a narrow window of possibility for life to persist on the icy moons of the outer solar ...

In approximately 4.5 billion years, as the sun transforms into a red giant and engulfs Earth, Jupiter's moon Europa may offer ...

NASA's tritium betavoltaic devices offer a compact, efficient power solution for autonomous sensors, enhancing capabilities ...

The latest Mount Etna eruption triggered an avalanche of volcanic material and sent ash miles into the air. Spectacular photos and videos capture the eruption of Europe's largest active volcano.