Kathryn boast gives a flash talk discussing what we already know about dark matter, and what we still have to find out about it. There is quite a lot of conclusive evidence for the existence of dark matter, but we still have very little idea of what it actually is. Kathryn Boast takes you on a guided tour through one of the biggest mysteries in physics, and shows how physicists are trying to shine a light on dark matter and show you some of the kits that she is helping to develop.