On Monday, NASA Administrator Charles Bolden gave an exciting update on the state of America's space agency, detailing the Obama Administration’s proposal to give NASA $18.5 billion for the 2016 fiscal year. Embedded in that budget is a small—yet significant—detail: About $30 million will be allocated to fund a robotic mission to Jupiter’s moon Europa.

For the scientific community, that’s huge news, as Europa is probably the top candidate for finding potential life elsewhere in our solar system. Scientists theorize (well, they’re pretty damn sure) that underneath Europa’s icy surface, there lies a vast salty ocean, holding more than twice the amount of water as all the oceans of Earth. And if that ocean does exist, its conditions may be just right for it to be home to an entire ecosystem.

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