Quick game
True or false?
Eight real facts from our books and videos. Most people get about half. Can you beat Barry?
Read, play, colour
The books
Fact books for curious kids, quiz books that get the whole family arguing, and colouring books for every age. Tap a book to look inside.
Watch
Two-minute science
Hand-made cartoon Shorts about the hottest, fastest, oldest and furthest things there are. Press play right here, then see the facts and sources behind each one.
No made-up facts
How we check
The internet is full of “facts” that aren't. Here's what every number goes through before it goes in a book or a video.
Two sources
Every figure needs two independent sources, ideally the people who measured it: NASA, the Met Office, CERN, museums and journals.
A fact hunt
Each book and video then gets a separate audit whose only job is to find mistakes. It always finds some, and we fix them.
Honest labels
We say whether a number was measured, estimated or argued about, and we date records, because records get broken.
Spotted something wrong? Tell us in a comment on any video. We'll fix it and say so.
Keep exploring
Where we go to learn
Free, trustworthy places to keep finding things out, for curious kids and curious grown-ups.