Two videos posted on Twitter by SpaceX (we've combined them into the one you see above) show the 16th test of the Crew Dragon's parachute system. During the test, SpaceX released an uncrewed Dragon prototype from a helicopter at a low altitude. The space capsule deployed a series of drogue parachutes to slow down the spacecraft as it fell toward the ground. Its four main parachutes then unfurled, slowing down the spacecraft as it swayed gently below. [SpaceX's Crew Dragon Spaceship Explained (Infographic)]
"At Naval Air Facility El Centro in Southern California, SpaceX recently completed its 16th test of Crew Dragon's parachute system — verifying the system's ability to slow Crew Dragon and ensure a safe landing in the unlikely event of a low altitude abort," SpaceX wrote in a tweet with one of the videos on June 26. SpaceX released few other details about the test, such as at what altitude the spacecraft was released and how fast the spacecraft fell during its descent.
SpaceX's Crew Dragon is the crewed version of the Dragon cargo ship that sends supplies and equipment to the International Space Station (ISS). In 2014, after several selection rounds, NASA chose SpaceX and Boeing (which is developing the CST-100 Starliner) to send crews to the ISS.
Each spacecraft type can send up to seven astronauts aloft at a time. The Crew Dragon will fly aboard SpaceX's Falcon 9 rockets, and Starliner will go to space aboard Atlas V rockets built by United Launch Alliance.
NASA has said the first test flights for both spacecraft are currently scheduled to lift off in August from separate launchpads at Cape Canaveral Air Force Station in Florida. If these flights meet expectations, Boeing is expected to fly its first crewed launch in November, and Crew Dragon could send a crew into space in December, NASA officials have said.
NASA currently uses Russian Soyuz rockets and spaceships to get its U.S. astronauts to the ISS. The space agency used to do this on its own, but it has been without an active crewed spacecraft since the space shuttle fleet was retired in 2011.