Sixty years ago next month, four U.S. Navy divers—the first American aquanauts—swam into a seafloor shelter dubbed Sealab I, stationed 59m/193 ft deep, 42 km/25 mi...
Sixty years ago next month, four U.S. Navy divers—the first American aquanauts—swam into a seafloor shelter dubbed Sealab I, stationed 59m/193 ft deep, 42 km/25 mi...
