At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

New method reveals chemical signs of early microbial life in ancient Earth rocks, showing photosynthesis evolved much earlier ...

Ocean temperatures well below freezing in Earth’s deep-past glacial phases imply some very salty waters. At the height of a ...

Stare out into the grand expense of the ocean, and it can truly seem endless. Although oceans appear vast and uniform, ...

Evidence found that the end of the last ice age saw a massive warming from the emergence of salty water trapped in the deep ...

Scientists working in Ethiopia's Afar Region have made discoveries that rewrite our understanding of early human history. For ...