Has humanity reached ‘peak intelligence’?

Are our IQs set to increase forever, or are we on the cusp of decline? David Robson explores the past, present and future of intelligence. Since the intelligence test was invented more than 100 years ago, our IQ scores have been steadily increasing. Even the average person today would have...

Apollo in 50 numbers: Oddities

Apollo spacecraft names The second American in space, Gus Grissom, named his Mercury capsule Liberty Bell 7 – representing a patriotic symbol of American independence and Nasa’s first seven astronauts. Grissom’s 15-minute sub-orbital flight in July 1961 went perfectly but, shortly after splashdown, explosive bolts on the hatch blew prematurely. As...

How weird could life on Earth get?

From walking trees to floating toads, the far future of nature on our planet could be like nothing we’ve seen before. In the early 1980s, the author Dougal Dixon published a cult book called After Man: A Zoology of the Future, which imagined what life would look like millions of...