Deep inside Earth, two massive hot rock structures have been quietly shaping the planet’s magnetic field for millions of ...

Hidden mega-structures deep inside Earth may have been quietly steering our planet’s magnetic field—and rewriting what we ...

Exploring Earth's deep interior is a far bigger challenge than exploring the solar system. While we have traveled 25 billion ...

Earth's magnetic field is generated by the churn of its liquid nickel-iron outer core, but it is not a constant feature.

Beginning two billion years of Earth’s history, the amount of oxygen was not sufficient, but the atmosphere was rich in ...

The Purple Earth Hypothesis has significant implications for the search for life on other planets.

An artist’s impression depicts Kryoryctes at Dinosaur Cove in Australia. New research supports the hypothesis that Kryoryctes is a common ancestor of both the platypus and echidna. - Peter Schouten ...

Comparison of planetary atmospheres : Mars, Venus, and Earth / Michael McElroy -- Cosmochemical evolution and the origins of life / Cyril Ponnamperuma -- Origin of life : polymers before monomers? / ...

The Gaia hypothesis / James E. Lovelock -- Comparison of planetary atmospheres : Mars, Venus, and Earth / Michael McElroy -- Chemical evolution in a hydrogen cyanide world / Clifford Mathews -- ...

We show how this "cosmic clock" uncovers the evolution of rivers, coasts and habitats.