Title: SpaceX Dragon 2 Content: SpaceX Dragon 2 is a class of reusable spacecraft created by American aerospace manufacturer SpaceX as the replacement to the Dragon 1 cargo spacecraft. The spacecraft launches atop a Falcon 9 Block 5 rocket and returns to Earth via an ocean splashdown. The spacecraft can dock itself to the International Space Station (ISS) instead of being berthed. It has two versions; Crew Dragon, a human-rated capsule capable of carrying up to seven astronauts, and Cargo Dragon, an updated replacement for the original Dragon spacecraft.Audit of Commercial Resupply Services to the International Space Station. NASA. April 26, 2018. Report No. IG-18-016. Quote: "For SpaceX, certification of the company's unproven cargo version of its Dragon 2 spacecraft for CRS-2 missions carries risk while the company works to resolve ongoing concerns related to software traceability and systems engineering processes". Crew Dragon is equipped with an integrated launch escape system in a set of four side thruster pods with two SuperDraco engines each. The spacecraft features redesigned solar arrays. SpaceX plans to replace Dragon 2 with Starship. == List of flights == Launch dates are listed in UTC. === Crew Dragon flights ===  ==== Later flights ==== *From 16 November 2020 to 2 May 2021, the Crew-1 mission happened. The successful mission used the space capsule Resilience and the crew was ** *23 April 2021 to 9 November 2021: the Crew-2 mission used space capsule Endeavour. The flight was a success. The crew was ** *16 September 2021 to 18 September 2021: Inspiration4 mission used space capsule Resilience. The flight was a success. The crew was ** *11 November 2021 to 6 May 2022: Crew-3 mission used space capsule Endurance. The flight was a success. The crew was ** * 8 April 2022 to 25 April 2022: Axiom-1 mission used space capsule Resilience. The crew was ** *27 April 2022 to 14 October 2022: Crew-4 mission used the space capsule Freedom. The crew was ** Kjell Lindgren Bob Hines Samantha Cristoforetti Jessica Watkins *As of 2023's first quarter, SpaceX has four crew members at ISS ** The mission is Crew-5. *In February 2023, the Crew-6 flight is supposed to start. *In March 2023, the Polaris Dawn flight is supposed to happen. The flight is supposed to be part of the three flights of the Polaris program; The two first flights are supposed to use Crew Dragons. ===Cargo Dragon flights=== *During 6 December 2020 and 14 January 2021, the first flight of Cargo Dragon 2, to ISS happened. The Nanoracks Bishop Airlock module was taken to the ISS along with of cargo. The successful mission (CRS-21) used space capsule C208. *3 June 2021 to 10 July 2021, had a flight to the ISS: CRS-22. The solar arrays iROSA 1 and iROSA 2, were taken there. The successful mission used space capsule C209. *29 August 2021 to 1 October 2021, was a flight to the ISS. The successful mission (CRS-23) used space capsule C208. * 21 December 2021 to 24 January 2022, was a flight to the ISS. The successful mission (CRS-24) used space capsule C209. *15 July 2022 to 20 August 2022, the fifth Cargo Dragon 2 flight to the ISS: CRS-25. The successful mission used space capsule C208. *On November 26, 2022 the sixth Cargo Dragon 2 flight to the ISS, started: CRS-26. It is docked to the ISS, as of 2022's fourth quarter. ==Design== Crew Dragon has eight SuperDraco engines, with each engine able to produce of thrust to be used for launch aborts (or giving up a a launch - after it has already started). Each pod also contains four Draco thrusters that can be used for attitude control and orbital maneuvers (or using engines while already in an orbit). The SuperDraco engine combustion chamber is printed of Inconel, an alloy of nickel and iron, using a process of direct metal laser sintering.