Researchers unveiled evidence of hydrogen plumes on Saturn's moon Enceladus that are similar to deep sea hydrothermal vents on Earth that support primitive life. According to Linda Spilker, a Cassini Project scientist at NASA's Jet Propulsion Laboratory:
"The hydrogen is coming from a hydrothermal vent on the seafloor of Enceladus, the hydrogen could be a source of energy for microbes that might be in Enceladus' ocean."
Potential for life on Jupiter's moon Europa, too: Hubble Space Telescope discovered a water plume on the warmest part of Europa's surface.
Why it matters: The most likely locations for life beyond Earth in our solar system may be these two moons.
