by Hilary Brueck, Business Insider Australia
Diving to the bottom of the ocean is arguably harder than rocketing into space.
Hundreds of astronauts have left Earth, but you can count the people who’ve visited the very bottom of the ocean on one hand: James Cameron, Jacques Piccard, and Don Walsh.
Continue reading NASA is testing a new submarine that will hunt for undiscovered sea life — and scientists eventually want it to look for aliens on Europa
by Kelsey D. Atherton, Popular Science
Thanks to a gas bubble and a liquid lubricant
The submarine of the future may come to America in a super fast bubble, traveling under water. Researchers at China’s Harbin Institute of Technology developed a new concept for submarine “supercavitation,” where an underwater vessel creates a pocket of air around itself. Inside this bubble, the submarine can travel much faster without friction of water creating drag and slowing it down. Theoretically, a supercavitated vessel using rocket engines could travel inside that air pocket at almost the speed of sound. Continue reading China’s Future Submarine could go the Speed of Sound