Europa - A World of Ice
Europa is a strange satellite. It is about the same size as Earth's moon, but it is very smooth. There are very few craters on its surface - something is removing them.
Europa is covered by a sheet of ice. Its thickness is not known. Like Io, Europa gets squished by Jupiter. Europa doesn't get squeezed as much as Io does, but it might heat up enough to melt some of the ice. There might be an ocean under the sheet of ice, but no one knows.
There are also strange, dark lines on Europa's surface. No one knows what they are or how they got there.
Keep these things in mind while you discuss your base.
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