NASA is planning to send a robotic mission by 2025 to Jupiter’s watery moon Europa, one of the most likely place for alien life beyond Earth in our solar system. Europa is one of the solar system’s most mysterious moons. There may be a vast ocean beneath Europa’s icy crust, with more water in it than exists on all of Earth.
A little bit of that water may be erupting from geysers near the Europa’s south pole, sending plumes 200 kilometers into the air, a recent study has found. Scientists can send a spacecraft flying through these jets in order to sample their composition.
The American space agency has set aside $15 million in its 2015 budget proposal to start planning a mission to Europa. NASA will look at many competing ideas for a Europa mission, so the agency does not yet know how big or how much it will cost.