Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised ...

Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.

Plus: A solar eclipse and an occultation of the Pleiades as our satellite skims through several constellations in the sky ...

The solar system is home to bizarre moons like Enceladus and Callisto, each unveiling nature’s wonders and some of science’s ...

Scientists estimate there are ~1 septillion (1 followed by 24 zeros) planets in the observable universe. This figure is based ...

NASA eyes a return to Saturn with a new probe, aiming to uncover gas giant mysteries. Missions to Enceladus, Io, and the Moon promise insights into life, volcanism, and space origins.

Plus: Observe two stunning spirals, see Venus reappear as a morning star, and enjoy the Last Quarter Moon in the sky this ...

A team of geologists at the Chinese Academy of Geological Sciences, the Institute of Space Sciences and the Shandong ...

But that hasn’t always been the case. Jupiter’s four largest moons—Io, Europa, Ganymede, and Callisto—were the first to be discovered orbiting another planet. Galileo Galilei spotted them ...

But it hasn’t always been this way. Show Full Article Jupiter’s four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet. They were spotted by ...