Mercury takes only 88 Earth days to orbit the sun.

When I was a kid, there were nine planets. Now we know of thousands! But that includes exoplanets, alien worlds that orbit alien suns. Only eight planets call our solar system home. Or there might ...

But what’s it like on other planets? There are eight planets in our solar system. The closest one to the sun is Mercury, then it’s Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a great planetary alignment. The eight planets in our solar system orbit the sun in ...

You may be familiar with the notorious Mercury retrograde, but Mercury is not the only planet to go through this stress-inducing phase. In 2025, eight planets will retrograde at various times ...