If you didn't know, Jupiter has no solid ground – no surface, like the grass or dirt you tread here on Earth. Let's explain ...

The movements of the planets in the Solar System are pretty difficult to get your head around, even before we get started on ...

The closest are the four rocky planets, the remaining gas planets inhabit deeper space. The solar system is also home ... Don't forget to label it and add any facts that you know!

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

A solar wind event squashed the protective bubble around Uranus just before Voyager 2 flew by the planet in 1986, shifting ...

It is a world of extremes. Explore facts about our solar system's fastest planet. Mercury is slightly larger than our Moon - 15,329 kilometres around its equator. Its radius, the distance from the ...

We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

We’re showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

In fact, every planet—and every moon—in the solar system will be in the sky during the eclipse. However, that doesn’t mean you’ll see them all. Contrary to what you might have read ...

“I think not even knowing the number of planets in our own solar system is very humbling.” That means that even the facts that many people learned from textbooks as children can ...