With an American TikTok ban threatening the app, users and creators reflect on what it did for internet culture – and what their online worlds might look like without it.

BBC environment journalists analyse the key events coming up in 2025 with game-changing potential for climate and nature.

From space junk gel to hologram surgery, the team had lots of intriguing predictions. Which, if any, came true?

The brain often blurs the senses – a fact that marketers often use in the design of food packaging. And AIs appear to do the same.

The Oregon Trail was once the most widely distributed software in US schools. It gripped a generation and changed gaming forever, but debates rage on about the history it depicts.

Equatic is among a wave of start-ups exploring how the ocean could be harnessed to capture and store carbon. But not everyone is sure it's such a good idea.

Apple's new artificial intelligence features falsely made it seem the BBC reported Luigi Mangione had shot himself.

StumbleUpon, a tool that led users to random websites, had a stranglehold on millennials in the 2010s. Its influence echoes through everything we do online.