Enceladus (Saturn’s moon
“This object should be ice,” Green said, explaining that it’s outside of the traditional habitable zone.
But surprisingly, it’s blasting sheets of water out into the solar system. Silicon particles have also been found.
“Where does the Silica come from? It must come from the ocean floor,” he said. “The tidal energy created by Saturn is pulling and squeezing this moon, melting that ice and creating an ocean. But it’s also doing that to the core. The only thing we can think of that does that here on Earth as an analogy are hydrothermal vents.”
On earth, these hydrothermal vents are teeming with life.
“We believe because it has water and has had it for a significant period of time and because it has hydrothermal vents with the right organic material, it could be a place where life exists—and not just microbiol—because it has had time to evolve,” Green said.