An octopus uses jet propulsion to make a quick getaway at Juan de Fuca Ridge, depth 2660m. Octopuses generally crawl along the sea floor, but when they feel the need for speed, cephalopods can move very fast; they draw water into a cavity in their muscular mantle (body), then forcefully squeeze the water out of a small hole called a siphon. This works in the same way that a rocket ship is propelled in the opposite direction of the exploding fuel roaring out of its engine. The structure in the vi

537K views · 10K reactions | For the first time, SpaceX successfully...

We're building the first rocket to ever launch from another planet. 🚀 Over the past week, we've been awarded three contracts by NASA for critical elements of the Mars Sample Return mission, including... ☑️ The Mars Ascent Vehicle (MAV), a.k.a. Mars rocket ☑️ The cruise stage to power and steer the Mars sample retrieval lander through space ☑️ The Earth Entry System which will bring those first Martian samples safely back to Earth in a protective case. Learn more: https://lmt.co/34Nb9j3 | Lockhe