Do we need a new theory of evolution?

A new wave of scientists argues that mainstream evolutionary theory needs an urgent overhaul. Their opponents have dismissed them as misguided careerists – and the conflict may determine the future of biology.

5,000 exoplanets now confirmed to exist

Exoplanets, worlds orbiting distant stars, were once only theorized. And even then, astronomers thought only some stars had planets. Yet, on Monday, NASA announced that, to date, 5,000 exoplanets have been detected.