It’s a robot, a little bigger than a refrigerator. A 12-hour dive with the new ROV costs about a tenth of Alvin’s price. That’s because scientists don’t go underwater. They stay up above the waves in ...

a top-of-the-line underwater ROV (remotely operated vehicle). The company is now offering a much smaller, less pricey yet still very capable model, however, called the Photon. Designed primarily ...