A large subsurface ocean, spanning approximately 20 million km 3, has commonly been thought to be the primary source of ...

Learn more about this new hydrothermal feature that could be connected to one from Yellowstone’s past.

In 2005, NASA's Cassini spacecraft first discovered towering plumes of water vapor erupting from the moon's frozen surface, for instance, and it was later theorized that these geysers come from a ...