Sources and Outside Material General Sources: - NASA - Europa Hompage - NASA - Europa Clipper Homepage - ESA - JUICE Homepage Publications:  - Europa's Ocean - the Case Strengthens (David Stenvensen, Science, 2000) - Galileo Magnetometer Measurements: A Stronger Case for a Subsurface Ocean at Europa (Margaret G. Kivelson; et al, Science, 2000) - Europa Study 2012 Report (NASA, 2012) - Extreme Shrimp May Hold Clues to Alien Life (NASA 2014) - Hubble Space Telescope Sees Evidence of Water Vapor Venting off Jupiter Moon (NASA, 2013) - Scientists Find Evidence of 'Diving' Tectonic Plates on Europa (NASA 2014)