Seaswarm, an autonomous, solar-powered skimmer, may be the answer to less expensive and more efficient methods for cleaning up future oil spills. The robot prototype promises to absorb 20 times its weight in oil. Created by researchers at MIT’s Senseable City Lab, Seaswarm employs a conveyor belt of absorbent, nanowire mesh. The specially deigned mesh can suck up oil on the water’s surface and then process and dispose of the oil it’s collected. The Seaswarm can continue to absorb more of the spill while the robot autonomously navigates and cleans the ocean for weeks on end. Researchers claim that 5,000...