The Red Planet is rocky, much like Earth. The inside structure of Mars is also similar to Earth's, NASA rovers have revealed. Mars' outer crust is 6 to 30 miles (10 to 50 km) thick and is composed ...

A day on the moon is around 27.3 Earth days long Here’s another interesting ... while the planets farther away experience ...

That’s because these planets are primarily made from gas and have no solid surface. This group of planets is also known as the ‘Jovian Planets’ after the Roman god Jupiter. Jupiter is ...