Europa: Ocean World

https://assets.science.nasa.gov/content/dam/science/missions/europa-clipper/videos/-home-www-videos-jupiter-europa-20141121b-europa20141121-1280.m4v

Scientists think there is an ocean within Jupiter’s moon Europa. NASA-JPL astrobiologist Kevin Hand explains why scientists are so excited about the potential of this ice-covered world to answer one of humanity’s most profound questions.