This dreamy, gorgeous swimming hole may look like heaven on earth but it has a slightly ominous name that you wouldn't expect. Here's what you should know.

Yellowstone National Park geologists identified a new thermal feature in Norris Geyser Basin. It may have coincided with a ...

Wreck of the Delphis (Shipwreck)Wreck of the Euporia (Shipwreck)Shaitan's Grotto (Cavern)Sheol is one of the late-game ...

An expedition in the Red Sea found several brine pools that appear to be fed by underwater volcanoes, which may be home to ...