Elon Musk, the billionaire inventor and SpaceX founder, tweeted videos of his rescue submarine that can be used to extract a soccer team trapped inside a Thailand cave. The picture shows the tiny kid-sized submarine simulating maneuvering through a narrow passage. (Photo/Agencies)
A diver tests the tiny kid-sized submarine in a pool in Los Angeles. Musk said the construction will be "complete in about 8 hours, then 17-hour flight to Thailand." (Photo/Agencies)
The production of tiny kid-sized submarine. Musk said the construction will be "complete in about 8 hours, then 17-hour flight to Thailand." (Photo/Agencies)