
Four billion years ago there was no life on Earth. Then there was. Something in the chemistry of the early planet crossed a threshold — and a new 2026 discovery in Cambridge may finally show us what that something was: a single RNA molecule that figured out how to copy itself, without any biological help… Read more

Two billion years before the first animal drew breath, a microscopic organism was quietly dismantling the world. The Great Oxidation Event explained is one of Earth’s most dramatic untold stories — how cyanobacteria accidentally poisoned an entire planet, froze it solid, and in doing so, made all complex life possible. This is that story. Read more