Join the scientists from the MISSION project, who will demonstrate, how light can be used to help detect disease, identify chemicals and the greenhouse gases in our oceans. You will meet Mar the fish who is feeling poorly. Together we will run some tests and find out what made Mar ill. You will learn to be a light detective using our interactive and hands-on activities, and discover how we use lasers, silicon chips and light to find the evidence. You will be able to bend light around your fingers, learning how the internet comes to your home, make rainbows and how we can make this all smaller than one of the hairs from your head to launch into the oceans on the miniature submarine "Boaty McBoatface".