and Galileo realised that Jupiter had moons. Besides Earth's moon, these were the first natural satellites anyone had ever seen in the solar system. TikTok Officially Goes Dark Just Hours Before ...

Using his celestial observations, including the discovery of Jupiter’s satellites, Galileo came up with a book titled Siderius Nuncius (The Starry Messenger) in March 1610. In this work ...

The Galileo probe expanded on our knowledge of Jupiter's moon, Io, showing us just how hot and hellish the Jovian satellite could be.

Venus and the planet Jupiter in quick succession. 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 ...

Among them was the discovery of four moons orbiting Jupiter. To Galileo, the moons proved that not everything in space circled the Earth, and therefore our planet was not the absolute center of ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...

Funding for the UK's own satellite navigation system to rival the European Union's Galileo project is expected to be announced. It comes after the UK was told it would not be able to access the EU ...

On this date, Jan. 17, 2002, the Galileo probe made it’s 33 rd pass of Jupiter’s moon, Io. After Voyager 1’s pass in 1979, Io was dubbed the most volcanically active place in the solar system.