Observations Along with the Hubble House Telescope also suggest Europa features a tenuous atmosphere of oxygen. The mixture of drinking water, a warmth resource, and an atmosphere raises the possibility that Europa harbors life. Earth’s oceans, by comparison, only stretch down about 11 kilometers (under 7 miles) at their deepest. https://best-moons59370.mdkblog.com/40566521/new-step-by-step-map-for-moons