What are the main characteristics of Europa?

Answer 1

One of the natural satellites of Jupiter, Europa, has double ridges all over the surface. The cause of this is because the surface of Europa is ice and the planet turns from oval to circle. A squishing kind of thing. That causes the ice to crack and the water beneath comes up and freezes because the temperature is very very cold. This repeats over and over and that causes the double ridges on its surface.

It has dark regions and that may show the areas where Europa's water and ice has a higher mineral content.

Interesting celestial object. Probably has life on it.

Answer 2

It is entirely covered by a layer of water ice that is miles, possibly tens of miles deep. Some scientists believe there is an ocean beneath the ice that could harbor life. It's one of the four moons discovered by Galileo when he looked at Jupiter in the 1600s.