A study suggests that icy moons can still harbor oceans after catastrophic collisions, a finding that could help guide the search for life beyond Earth.
Many moons orbiting Saturn, Uranus, and Neptune are thought to conceal liquid water beneath miles of icy shell. These buried oceans hold a basic ingredient for life as we know it, making them promising places to search for extraterrestrial organisms in a region shaped by violent collisions.
Scientists suspect some of today’s moons are reassembled remnants that were repeatedly shattered by space debris and pulled back together. This cosmic demolition derby raises a critical question for astrobiologists: Do massive collisions destroy a moon’s ocean and extinguish any chance for life?









