Jupiter’s volcanic moon, Io, is exhibiting geothermal activity far beyond what scientists had anticipated, with heat levels ...

Enceladus may be leaking heat from both poles—raising hopes that its hidden ocean could stay stable enough to support life.

A 2025 satellite photo captures the stark contrast between the barren Poás volcano and the surrounding Costa Rican jungle.

Jupiter’s volcanic moon has always felt like a place that tests your sense of what a world can be. Its surface glows with ...

NASA’s Cassini mission has revealed surprising heat flow at Enceladus’ north pole, showing the moon releases energy from both ...

A gibbous moon, like the one captured here, refers to a phase in which the moon is more than half illuminated but not yet ...

Jupiter's moon Io stands alone among the solar system's moons. It has more than 400 active volcanoes, and its surface is home ...

Trapped in a gravitational push and pull between Jupiter and other Jovian moons, Io is constantly being stretched and ...

New research on the Uranian moon Ariel suggests the icy world may be hiding a deep secret. Credit: NASA / JPL Scientists think one of Uranus' moons may once have had an ocean roughly 100 miles deep — ...

The first of the year’s only three supermoons rose Monday night with the full moon coming just before midnight and lit up an overnight launch of a SpaceX rocket. The near side of the moon had 100% ...

Sept. 30 (UPI) --A new study published Tuesday suggested that the moon's far side of the moon may be colder than the near side. The study, published in the journal Nature Geoscience, found that rock ...