This 25-million-year-old lake holds one-fifth of all the planet’s fresh surface water.

This 25-million-year-old lake holds one-fifth of all the planet’s fresh surface water.
The high salt concentration in the Dead Sea drives the warming and shrinking of the lake, and something…
We now have a clearer picture of what happened in the decades following the asteroid impact that led…
The geographic poles can shift at surprisingly high rates Planet Observer/Universal Images Group via Getty Images The Earth’s…
Expedition member Chris Blakeley in the entrance to the world’s northernmost known cave, found on the Wulff Land…