Today the Nobel Prize committee announced the Nobel in chemistry would go to a group of US and Japanese researchers who discovered the green fluorescent protein (GFP) in jellyfish and transformed it into one of the most powerful research tools in genomics. Although GFP can make glowing kitties (above), glowing bunnies, glowing monkeys and mice (below), it has far more important applications for medical research. The eye-catching protein is used as a visual tag, linked to other genes or cells that scientists are tinkering with. As a result, scientists can literally see the results of their experiments. Now you can too.