This was an epoch between 14,500 and 5,000 years ago when the Sahara Desert was transformed into a lush green savanna with ...

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

Researchers studied the DNA of two 7,000-year-old naturally mummified individuals excavated in the Takarkori rock shelter in ...

An international team has sequenced the first ancient genomes from the so-called Green Sahara, a period when the largest desert in the world temporarily turned into a humid savanna-like environment.