SpaceX's Crew Dragon capsule completes acoustic testing in Florida ahead of its crewed flight to and from the International Space Station later this year. Officially known as SpaceX Demo-2, NASA astronauts Bob Behnken and Doug Hurley will launch aboard the first crewed test flight of the Crew Dragon spacecraft, in what is the first crewed spaceflight launched from U.S. soil since STS-135 in 2011. Photo by SpaceX/UPI