Life made the modern Earth as much as the Earth made life, a new book by a philosopher of consciousness argues. That dynamic leaves humans with a unique set of moral questions, Peter Godfrey-Smith of ...

Drabon is an early-Earth geologist intrigued by understanding what the planet was like before the first continents formed and how violent meteoritic impacts affected the evolution of life.

Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...

Maybe the first life on Earth was part of an 'RNA world ... This possibility would mean that viruses may have appeared before bacteria. But because viruses don’t leave fossils behind, there ...

Finding evidence for the first life ever to emerge on planet earth is a long, tough slog. But oddly enough, real answers may ultimately come from Mars.

When it hit Earth, it blew a Maryland-sized ... resilient to this sort of shock than current life would be today. If you flew over our planet just before the S2 impact more than three billion ...