For now, the tiny new moon has a clunky name, but if it passes peer review, they might call it something better.

A rare celestial event is about to unfold in Earth’s night skies on August 19, 2025, when Saturn and its largest moon, Titan, ...

Jupiter's four Galilean moons will line up in front of Jupiter in the early morning sky on Aug. 8. The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up ...

Phases of ice that exist naturally only on frozen moons could be detected using infrared spectroscopy, according to new ...

The ocean on Ganymede may have more water than all the water on Earth. In this artist’s concept, the moon Ganymede orbits the giant planet Jupiter. NASA’s Hubble Space Telescope observed ...

This rare planetary alignment will be visible from August 10 but will be best viewed later in the month. Here’s everything you need to know to see it at its best.