Can AI help us talk to whales and other animals?

Speaking to animals has long been a fantasy. But now a dizzyingly ambitious project is harnessing all the power of modern science in an attempt to understand what whales say – and then hold conversations with them.

How many people can Earth handle?

Towards the end of 2022, the human population on Earth is expected to reach eight billion. To mark the occasion, BBC Future takes a look at one of the most controversial issues of our time. Are there too many of us? Or is this the wrong question?

The UFO sightings that swept the US

Seventy-five years on from the first mysterious sightings in the US, Nicholas Barber looks back at one of the most haunting objects in popular culture.