There are about 400 subglacial lakes around the world, but these are the first scientists believe to be salty.
"I think that in this century we are going to be finding life beyond Earth," said Jill Tarter, a scientist at the SETI Institute research center in California.
"We have no idea what's behind these weird incidents because we're not investigating," Christopher Mellon said.
Enceladus is a "hot spot" in the search for extraterrestrial life.
(Methane + carbon dioxide) - carbon monoxide = aliens?
The new results explain how two planets in this distant solar system may be positioned just right to create life-friendly conditions.
There is indeed evidence of an ancient ocean on Mars, but seashells and a sphinx? Not so much.
An atmosphere is basically a giant blanket that can protect a planet from a star's barrage of dangerous radiation.
One theory suggests that aliens are purposely leaving us be to evolve on our own.
A white Christmas on Enceladus is pretty much a given every single year.
The new land mass may be similar to Mars.
The device will search for the origins of the universe.
The finding means we may need to add places like Pluto and Eris to our list of potentially habitable destinations.