Europa gravity

Europa is a large moon of the planet Jupiter. It is a little smaller than Earth's Moon and it is the sixth-largest moon in the Solar System.

Europa's diameter is about kilometers. It probably has an iron core, and a thin atmosphere of mostly oxygen. The surface is icy and very smooth. There are not a lot of craters, but there are some cracks and lines.

Scientists believe that there is a liquidocean under the surface, and that it is kept warm by tidal heating.^[7] In other words, heat from tidal flexing (Jupiter's strong gravitational pull on Europa) makes it warm. Europa certainly has a lot of water.^[8]

The moon Europa was found by Simon Marius in December Galileo Galilei first saw the moon in January (he did not know Marius had found it). Simon Marius was the one who had the idea of the name 'Europa'.

Europa is named after a princess from Greek mythology who became the first queen of Crete.

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