New ‘Clipper’ mission proposed to study Europa’s ocean

Jupiter’s moon Europa, an ice-covered waterworld. Could life exist there?
Credit: NASA / JPL / Ted Stryk.

Jupiter’s moon Europa is often referred to as a “waterworld,” and for good reason: a global ocean almost definitely exists below its outer icy crust, making it a primary focus of interest in the search for life elsewhere in the solar system. So far, most of the information we have about this fascinating moon has come from flybys of the Galileo and Voyager spacecraft; these missions have been invaluable, of course, although limited. If we want to learn more about what is going on below in the Europan ocean, it will require new spacecraft with the necessary instruments to carry out long-term studies. Budgets are tight for an orbiter or lander, but a newly proposed “clipper” mission may just fit the bill.

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