Europa’s ocean ‘quiet and lifeless,’ new research suggests

View larger. | Jupiter’s ocean moon Europa is one of the most promising places to search for alien life in our solar system. Now, a new study suggests that Europa’s ocean might not be habitable after all, if there isn’t enough geologic activity on the seafloor. This artist illustration depicts NASA’s Europa Clipper, which will arrive at the moon in 2030. Image via NASA/ JPL.

• Jupiter’s moon Europa has a global water ocean beneath its icy surface. Could there be life there?
• The seafloor...