An icy surface.
Scientists have recently discovered frozen water on the moon, and on Jupiter's moon of Europa
The scientists think that Europa can have the life on it.
Europa was discovered in 1610 by Galileo when he pointed a telescope at Jupiter.
I have read somewhere that scientists think that europa may have an underground ocean.
Icy Caps
Europa was discovered by Galileo Galilei in 1610.
The four largest moons of Jupiter discovered by Galileo are Io, Europa, Ganymede, and Callisto.
A thick layer of ice
Scientists believe that there is liquid water, under the crust of Europa.
Europa - a moon of Jupiter.
They were discovered by scientists
The hobo on your street corner discovered Earth's moon and the hobo on your best friend's street corner discovered Europa.