Life on our planet goes back at least 3.7 billion years, and much of it started small. Researchers have studied microbial life in ancient rocks, but it has remained hard to place microbes on an exact ...

Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed on the Red Planet.

Researchers find Mars may have supported life up to 3.9 billion years ago, challenging previous theories of early dynamo shutdown.

In a new study, a team of researchers suggests that 4 billion years ago, plate tectonics likely looked closer to what we experience today than previously thought. The team published its findings ...

At that time, during the Hadean (4.6 billion to 4 billion years ago), Earth was an inhospitable place, with hot oceans and very little atmospheric oxygen.

Oldest Crystals In The World Reveal Earth Had Rain And Oceans 4 Billion Years Ago The early Earth had both oceans and freshwater, new evidence reveals, offering two possibilities for life’s ...

The early dinosaurs got their start on Pangea probably a little over 230 million years ago, with bipedal carnivores like Herrerasaurus.

Welcome to the early solar system. Just after the planets formed more than 4.5 billion years ago, our cosmic neighborhood was a chaotic place. Waves of comets, asteroids and even proto-planets ...

Eukaryotes, on the other hand, diverged relatively late in Earth’s history, about 1.8 billion years ago. This finding is consistent with previous studies.

Early Earth may not have been so inhospitable after all The shared ancestor of every living organism on the planet lived at least 3.9 billion years ago – adding weight to theories that life ...