Spacecraft call signs are radio call signs used for communication in crewed spaceflight. These are not formalized or regulated to the same degree as other equivalent forms of transportation, like aircraft. The three nations currently launching crewed space missions use different methods to identify the ground and space radio stations; the United States uses either the names given to the space vehicles or else the project name and mission number. Russia traditionally assigns code names as call signs to individual cosmonauts, more in the manner of aviator call signs, rather than to the spacecraft.
Dragon is a family of spacecraft developed and produced by American private space transportation company SpaceX. The first family member, later named Dragon 1, flew 23 cargo missions to the ISS between 2010 and 2020 before retiring. This version, not designed to carry astronauts, was funded by NASA with $396 million awarded through the Commercial Orbital Transportation Services (COTS) program, with SpaceX announced as a winner of the first round of funding on August 18, 2006.
Kjell Norwood Lindgren is an American astronaut who was selected in June 2009 as a member of the NASA Astronaut Group 20. He launched to the International Space Station (ISS) as part of Expedition 44/45 on July 22, 2015.
Dragon 2 is a class of partially reusable spacecraft developed, manufactured, and operated by American space company SpaceX, primarily for flights to the International Space Station (ISS). SpaceX also launches private missions, such as Inspiration4 and Axiom Space Missions. There are two variants of the Dragon spacecraft: Crew Dragon, a spacecraft capable of ferrying four crewmembers, and Cargo Dragon, a replacement for the original Dragon 1 used to carry freight to and from space. The spacecraft consists of a reusable space capsule and an expendable trunk module. The spacecraft launches atop a Falcon 9 Block 5 rocket and the capsule returns to Earth through splashdown. It has proven to be the most cost effective spacecraft in history to be used by NASA.
Crew Dragon Demo-2 was the first crewed test flight of the Crew Dragon spacecraft. The spacecraft, named Endeavour, launched on 30 May 2020 on a Falcon 9 rocket, and carried NASA astronauts Douglas Hurley and Robert Behnken to the International Space Station in the first crewed orbital spaceflight launched from the United States since the final Space Shuttle mission in 2011, and the first ever operated by a commercial provider. Demo-2 was also the first two-person orbital spaceflight launched from the United States since STS-4 in 1982. Demo-2 completed the validation of crewed spaceflight operations using SpaceX hardware and received human-rating certification for the spacecraft, including astronaut testing of Crew Dragon capabilities on orbit.
Boeing Crew Flight Test (Boe-CFT) will be the first crewed mission of the Boeing Starliner and the third orbital flight test of the Starliner overall after the two uncrewed orbital flight tests, Boe-OFT and Boe-OFT 2 in 2019 and 2022. The flight was scheduled for liftoff at 2:34 on 7 May UTC, but was scrubbed about two hours before liftoff. The cause of the 6 May 2024 mission scrub was due to an oxygen valve problem on the United Launch Alliance's (ULA) Atlas V, and not due to any anomaly on the Starliner portion of the rocket. The launch is now scheduled to occur no earlier than 17 May at 22:16 UTC.
Axiom Space, Inc., also known as Axiom Space, is an American privately funded space infrastructure developer headquartered in Houston, Texas.
SpaceX Crew-1 was the first operational crewed flight of a Crew Dragon spacecraft, and the maiden flight of the Crew Dragon Resilience spacecraft. It was also the second crewed orbital flight launch by the United States since that of STS-135 in July 2011. Resilience launched on 16 November 2020 at 00:27:17 UTC on a Falcon 9 from Kennedy Space Center Launch Complex 39A (LC-39A), carrying NASA astronauts Michael Hopkins, Victor Glover and Shannon Walker along with JAXA astronaut Soichi Noguchi, all members of the Expedition 64 crew. The mission was the second overall crewed orbital flight of the Crew Dragon.
Axiom Mission 1 was a privately funded and operated crewed mission to the International Space Station (ISS). The mission was operated by Axiom Space out of Axiom's Mission Control Center MCC-A in Houston, Texas. The flight launched on 8 April 2022 from Kennedy Space Center in Florida. The spacecraft used was a SpaceX Crew Dragon. The crew consisted of Michael López-Alegría, an American born in Spain and a professionally trained astronaut hired by Axiom, Eytan Stibbe from Israel, Larry Connor from the United States, and Mark Pathy from Canada.
The Commercial Crew Program (CCP) provides commercially operated crew transportation service to and from the International Space Station (ISS) under contract to NASA, conducting crew rotations between the expeditions of the International Space Station program. American space manufacturer SpaceX began providing service in 2020, using the Crew Dragon spacecraft, and NASA plans to add Boeing when its Boeing Starliner spacecraft becomes operational no earlier than 2025. NASA has contracted for six operational missions from Boeing and fourteen from SpaceX, ensuring sufficient support for ISS through 2030.
Launch America is a public–private partnership between the United States and multiple space companies, closely related to NASA's Commercial Crew Program. The term "Launch America" was used as early as May 2016. The initiative aims to end NASA's reliance on Roscosmos by developing launch systems that can carry crews to space from American soil.
Crew Dragon Resilience is a Crew Dragon spacecraft manufactured by SpaceX and built under NASA's Commercial Crew Program. In November 2020, it was launched into orbit to the International Space Station as part of the Crew-1 mission. With crew prompting, Resilience docked autonomously to the station at 04:01 UTC on 17 November 2020, or Day 2 of the mission, marking the first operational docking of a Crew Dragon and the first operational docking of the Commercial Crew Program. The mission carried four additional members of Expedition 64 to the three already on station.
Crew Dragon Endeavour is a Crew Dragon space capsule manufactured and operated by SpaceX and used by NASA's Commercial Crew Program. As of 2024 it has successfully completed four crewed missions to the International Space Station (ISS), and is currently conducting a fifth. It was first launched into orbit atop a Falcon 9 rocket on 30 May 2020 and successfully docked to the International Space Station (ISS) as part of the Crew Dragon Demo-2 mission. This was the first crewed flight test of a Dragon capsule, carrying Doug Hurley and Bob Behnken on first crewed orbital spaceflight from the United States since STS-135 in July 2011 and the first crewed orbital spaceflight by a private company. On 2 August 2020 it returned to Earth. The spacecraft was named by Hurley and Behnken after the Space ShuttleEndeavour, aboard which they first flew into space during the STS-127 and STS-123 missions, respectively. The name Endeavour is also shared by the command module of Apollo 15. The spacecraft's second mission, Crew-2, ended 8 November 2021 after having spent almost 200 days in orbit. Crew Dragon Endeavour set the record for the longest spaceflight by a U.S. crew vehicle previously set by her sibling Crew Dragon Resilience on 2 May 2021. Collectively, Endeavour has spent over 450 days in orbit, the most time in orbit by a crewed spacecraft, surpassing Space Shuttle Discovery.
SpaceX Crew-2 was the second operational flight of a Crew Dragon spacecraft, and the third overall crewed orbital flight of the Commercial Crew Program. The mission was launched on 23 April 2021 at 09:49:02 UTC, and docked to the International Space Station on 24 April at 09:08 UTC.
SpaceX Crew-3 was the Crew Dragon's third NASA Commercial Crew operational flight, and its fifth overall crewed orbital flight. The mission successfully launched on 11 November 2021 at 02:03:31 UTC to the International Space Station. It was the maiden flight of Crew Dragon Endurance.
SpaceX Crew-4 was the Crew Dragon's fourth NASA Commercial Crew operational flight, and its seventh overall crewed orbital flight. The mission launched on 27 April 2022 at 07:52 UTC before docking with the International Space Station (ISS) at 23:37 UTC. It followed shortly after the private Axiom 1 mission to the ISS earlier in the month utilizing SpaceX hardware. Three American (NASA) astronauts and one European (ESA) astronaut were on board the mission.
Axiom Mission 2 was a private crewed spaceflight operated by Axiom Space. Ax-2 was launched on 21 May 2023 on a SpaceX Falcon 9, successfully docking with the International Space Station (ISS)on 22 May. After eight days docked to the ISS, the Dragon crew capsule Freedom undocked and returned to Earth twelve hours later.
SpaceX Crew-5 was the fifth operational NASA Commercial Crew Program flight of a Crew Dragon spacecraft, and the eighth overall crewed orbital flight. The mission was successfully launched on 5 October 2022 with the aim of transporting four crew members to the International Space Station (ISS). The Crew Dragon spacecraft docked at the ISS on 6 October 2022 at 21:01 UTC.
SpaceX Crew-6 was the sixth crewed operational NASA Commercial Crew flight of a Crew Dragon spacecraft, and the ninth overall crewed orbital flight. The mission launched on 2 March 2023 at 05:34:14 UTC, and it successfully docked to the International Space Station (ISS) on 3 March 2023 at 06:40 UTC. The Crew-6 mission transported four crew members to the International Space Station (ISS). Two NASA astronauts, a United Arab Emirates astronaut, and a Russian cosmonaut were assigned to the mission. The two NASA astronauts are Stephen Bowen and Warren Hoburg. The cosmonaut, Andrey Fedyaev, was reassigned from Soyuz MS-23. Sultan Al Neyadi was the commander of the United Arab Emirates' mission on the flight.
