Recent scientific discoveries reveal two extraordinary phenomena that could change our understanding of Earth's hydrology.

Dozens of companies and academic groups are pitching the same theory: that sinking rocks, nutrients, crop waste or seaweed in ...

The San Andreas fault line caused destruction and distinction in California. Ray Isle offers an itinerary to explore the ...

An ocean may in time develop from a rift in the Afar Triangle, in the Horn of Africa which will be close to America.

You don't have to travel far to see some of the world's most stunning natural wonders. From shimmering turquoise lakes to majestic mountaintops, these are the places in each state that are sure to ...