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.

Edward O. Wilson, leading U.S. biologist, dies at 92

Edward O. Wilson, the sometimes-controversial U.S. biologist, professor, and author known as “Darwin’s natural heir”, who studied insects and human behaviour, has died at the age of 92, his foundation said Monday.