They are called Galilean moons in light of his discovery. Galileo realised that there are satellites which, like Earth's moon, orbit another planet in the Solar System. This strengthened his belief ...

But it won't be a star that will be keeping the moon company on this early winter's evening, but the largest planet in the ...

Firefly Aerospace's Blue Ghost lander is healthy on its way to the moon, and even witnessed a solar eclipse from space when ...

On January 18, the team at Firefly carried out Blue Ghost’s first engine burn, firing up the lander’s thrusters and main ...

Europa Clipper - one of the most advanced spacecraft ever sent to another planet - aims to explore Jupiter's icy moon ...

Loki Patera is 202 kilometres (126 mi) in diameter, covers 20,000 sq km (7,700 sq mi), and was the largest volcanic feature found on Io until these new observations revealed the hot spot in the south ...