WEST LAFAYETTE, Ind., March 20 -- Purdue University issued the following news release:
Brandon Johnson and his team study impact craters around the solar system for clues about planetary bodies' history and composition. (Purdue University photo/Rebecca Robinos)
WEST LAFAYETTE, Ind. - Sometimes planetary physics is like being in a snowball fight. Most people, if handed an already-formed snowball, can use their experience and the feel of the ball to guess what kind of snow it is comprised of: packable and fluffy, or wet and icy.
Using nearly the same principles, planetary scientists have been able to study the structure of Europa, Jupiter's icy moon.
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Europa is a rocky moon, home to saltwater oceans twice the volum...