The planets offer exciting views in April for both night owls and early risers. Plus, the Lyrid meteor shower peaks in April's third week.

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

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.

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