Oil spills do untold damage to eco-systems. A new material can absorb up to 90 times its own weight in spilled oil and then be squeezed out like a sponge and reused, raising hopes for easier clean-up of oil spill sites. The challenge for the students: A group of marine scientists have asked you to develop an algorithm that could be used on a boat drone to drag around a sheet of this smart material to clean up an oil spill.