NASA's Cassini spacecraft has provided evidence on presence of hydrothermal activity on which Saturn's moon ?

Question

Name the founder and CEO of Facebook whose birthday was on 14th May when he was criticized for posting a controversial map of India on infographic?

Answer 1

Enceladus

NASA’s Cassini spacecraft has detected hydrothermal activity on the seafloor of Saturn’s icy moon Enceladus. The finding adds the tantalising possibility that the moon could contain environment suitable for living organisms.