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Thursday, May 28, 2020

Explained: What is the SpaceX Demo-2 mission, set to launch next week?

The lift-off on May 27, with two NASA astronauts, is a flight test to certify if SpaceX’s transportation system can ferry crew to and from the International Space Station regularly.

By: Explained Desk | New Delhi | Updated: May 22, 2020 6:50:15 am
SpaceX’s Demo-2 mission, NASA, SpaceX, Robert Behnken and Douglas Hurley, Crew Dragon, Commercial Crew Program, Falcon 9, LC-39A, international space station, express explained, Indian express NASA astronauts Robert Behnken (left) and Douglas Hurley, who will be aboard SpaceX’s Crew Dragon spacecraft on May 27. (Photo: nasa.gov/multimedia/imagegallery/iotd.html)

On May 27, NASA’s SpaceX Demo-2 test flight will lift off for International Space Station (ISS), becoming the first crewed flight to launch from American soil since the conclusion of the space shuttle era in 2011.

What is the mission?

The Demo-2 mission is part of NASA’s Commercial Crew Program, and will see astronauts Robert Behnken and Douglas Hurley fly on SpaceX’s Crew Dragon spacecraft. The craft will lift off from a Falcon 9 rocket, from Florida.

NASA’s Commercial Crew Program has worked with several American aerospace industry companies to facilitate the development of US human spaceflight systems since 2010, with the aim of developing reliable and cost-effective access to and from the ISS.

Essentially, the lift-off on May 27 is a flight test to certify if SpaceX’s crew transportation system can be used to ferry crew to and from the space station regularly.

This is the final flight test for the system and intends to validate its different components, including the spacecraft (Crew Dragon), the launch vehicle (Falcon 9), the launch pad (LC-39A) and the operations capabilities.

After its launch, the Crew Dragon will perform a series of phasing manoeuvres to gradually approach and autonomously dock with the ISS on May 28. After docking, the two astronauts will go aboard the ISS. They will perform tests of the Crew Dragon and conduct research with Expedition 63, the space station crew currently in residence at ISS.

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The Crew Dragon spacecraft being used for this mission can stay in orbit for up to 110 days, though the specific duration is yet to be determined. If SpaceX spacecraft are used regularly, they will need to stay in orbit for a period of at least 210 days as per NASA’s requirements.

Once the mission is over, astronauts Behnken and Douglas will board the Crew Dragon, which will automatically undock, depart from the station and re-enter the Earth’s atmosphere.

The Commercial Crew Program

The main objective of this program is to make access to space easier in terms of its cost, so that cargo and crew can be easily transported to and from the ISS, enabling greater scientific research.

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Secondly, by encouraging private companies such as Boeing and SpaceX to provide crew transportation services to and from low-Earth orbit, NASA can focus on building spacecraft and rockets meant for deep space exploration missions.

Boeing and SpaceX were selected by NASA in September 2014 to develop transportation systems meant to transfer crew from the US to the ISS. “These integrated spacecraft, rockets and associated systems will carry up to four astronauts on NASA missions, maintaining a space station crew of seven to maximize time dedicated to scientific research on the orbiting laboratory,” the NASA website says.

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