Over the course of nearly five months in 2022, NASA's Perseverance rover collected rock samples from Mars that could rewrite the history of water on the red planet and even contain evidence for past ...

Watch the Earth's tectonic plates grow, shrink, and jostle for position in this new model of the last billion years on the ...

Dear EarthTalk: Are any plants and animals evolving backward by incorporating traits that they lost long ago? -- Joseph R., ...

A new study shows cultural evolution helped humans expand across Earth far faster than genetic change alone could achieve.

Oxygen first accumulated in the Earth's atmosphere about 2.4 billion years ago, during the Great Oxidation Event. A long-standing puzzle has been that geologic clues suggest early bacteria were ...

Geodynamics : the unanswered questions / A.L. Hales -- A global geochemical model for the evolution of the mantle / D.L. Anderson -- Temperature profiles in the earth / O.L. Anderson -- The structure, ...