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Expedition 2 Mission insignia Call sign Expedition 2 Number of crew 3 Launch 8 March 2001 11:42:09 UTC Launch site Kennedy Space Center Launch craft Discovery STS-102 Start 10 March 2001 (docking) End 20 August 2001 (undocking) Landing 22 August 2001 18:23 UTC[1] Landing craft Discovery STS-105 Landing site Kennedy Space Center Duration 163 days, 8 hours, 13 minutes EVA duration 18 h 40 min Mission duration 167 days, 6 hours, 41 minutes[NASA 1] Number of orbits 2,635[1] Distance traveled ~111,152,720 kilometres (69,067,100 mi) Mass 104,018 kilograms (229,320 lb) L-R: James Voss, Yury Usachev, and Susan Helms Previous expedition Next expedition Expedition 1 Expedition 3 Expedition 2 (also called ISS EO-2[2]) was the second long-duration spaceflight aboard the International Space Station, immediately following Expedition 1. Its three person crew stayed aboard the station from March to August 2001. In addition to station maintenance, the crew assisted in several station assembly missions, welcomed the first space tourist Dennis Tito, and conducted some scientific experiments. The crew consisted of one Russian, Commander Yury Usachev, and two American flight engineers Susan Helms and James Voss. The three had been to the station briefly in the previous year, during the 10-day mission STS-101 in May 2000. The Expedition 2 crew was brought to the station aboard Space Shuttle Discovery during mission STS-102. The Expedition's increment began when Discovery undocked on 10 March 2001, bringing Expedition 1 to an end.[NASA 1] In addition to the Space Shuttle flights which brought the crew to and from the station, there were two visiting Space Shuttle missions and one Soyuz mission which docked with the ISS during Expedition Two. In August Discovery returned to rotate the long-duration crews again, bringing the crew of the next expedition. The Expedition 2 increment ended when Discovery undocked from the station on 20 August 2001.[NASA 1] Contents 1 Crew 2 Mission highlights 2.1 Launch and docking 2.2 STS-100 2.3 ISS EP-1 2.4 STS-104 2.5 Undocking and landing 3 Mission Patch 4 Science activities 5 References 5.1 NASA 6 External links Crew All three crew members had visited the International Space Station together in May 2000 aboard STS-101. In addition to this spaceflight, the Expedition 2 Commander Yuri Usachev also had two other spaceflights, both of which were long-duration missions aboard Mir (EO-15 and EO-21).[NASA 2] In addition to STS-101, flight engineer Susan Helms had three other spaceflights, all of which were Space Shuttle missions (STS-54, STS-64, STS-78).[NASA 3] James Voss also had three other spaceflights, all of which were Space Shuttle missions (STS-44, STS-53, STS-69).[NASA 4] Position Astronaut Commander Yury Usachev, RSA Fourth spaceflight Flight Engineer 1 Susan Helms, NASA Fifth spaceflight Flight Engineer 2 James Voss, NASA Fifth spaceflight Mission highlights James S. Voss, Expedition Two flight engineer, looks over an atlas in the Zvezda Service Module. (NASA) Expedition 2, the second long-term crew for the International Space Station arrived in March 2001. They returned to Earth on mission STS-105, 22 August 2001 after having spent 163 days aboard the station and 167 days in space. Only Voss performed a spacewalk on STS-101, along with Jeffrey Williams. During this expedition, research facilities launched to the Space Station included a Human Research Facility, two EXPRESS (Expedite the Processing of Experiments to the Space Station) Racks, one of which contains the Active Rack Isolation System and the Payload Equipment Restraint System. They also prepared the Destiny laboratory to enable upcoming experiments to be conducted.[1] A major focus was on gaining a better understanding of how to protect crew members from radiation while working and living in space. Radiation exposure in high doses over long periods of time can damage human cells and cause cancer or injury to the central nervous system.[NASA 5] Launch and docking Main article: STS-102 The three-member Expedition 2 crew successfully launched on 8 March 2001 on Space Shuttle Discovery during mission STS-102. They docked with the International Space Station on 10 March, but their the Expedition 2 increment didn't begin until the previous crew undocked from the station on 18 March. STS-100 Main article: STS-100 The first visitors to the station during Expedition 2 was the crew of STS-100, when they docked Space Shuttle Endeavour with the ISS on 21 April 2001. They spent eight days docked to the station. The primary objective of this mission was to deliver and install the Canadarm2 on the ISS, which is a robotic arm similar to the Canadarm which is used on some Space Shuttle flights.[NASA 6] A later mission in 2002, STS-111, would deliver a movable base platform which would allow the Canadarm2 to have a larger range. ISS EP-1 ISS EP-1 Mission insignia Number of crew 3 Launch 07:37:20, April 28, 2001 (UTC) (2001-04-28T07:37:20Z) Launch site Gagarin's Start Launch craft Soyuz TM-32 End 05:41:28, May 6, 2001 (UTC) (2001-05-06T05:41:28Z) Landing craft Soyuz TM-31 Mission duration 7d 22h 04m On the day after the Space Shuttle undocked, the Russian spacecraft Soyuz TM-32 docked to the station, carrying two cosmonauts with previous spaceflight experience, as well as Dennis Tito, the first ever space tourist. This 8 day mission is sometimes referred to as ISS EP-1,[3] ISS-2S,[4] Soyuz 2 Taxi Flight,[NASA 7] or simply by its launching spacecraft Soyuz TM-32. The Commander of this visiting mission was Kazakh cosmonaut Talgat Musabayev, who had previously been on two long-duration missions aboard the space station Mir in the 1990's. The other crew member of ISS EP-1 was Yuri Baturin, who had one other spaceflight, Mir EP-4, which was a visiting mission to Mir launched with the spacecraft Soyuz TM-28.[5] Baturin's first mission occurred during the long-duration mission Mir EO-25, so he and Musabayev had already been in space together prior to ISS EP-1; in fact both were landed with the spacecraft Soyuz TM-27 in August 1998. STS-104 Main article: STS-104 In July, Space Shuttle Atlantis docked with the station for an eight-day visit as a part of STS-104. The main objective of this mission was to install the Quest Joint Airlock onto the station. The STS-104 crew performed 3 spacewalks. First spacewalk; Joint Airlock Installation The first spacewalk occurred on July 15, and focused on installation of the Quest Joint Airlock. The spacewalkers helped as Susan Helms, using the station's robotic arm, lifted the new station airlock from Atlantis' payload bay and moved it to the station's Unity module. During much of the 5 hour, 59 minute spacewalk, Jim Reilly worked from a foot platform attached to the end of the shuttle's robotic arm, operated by Janet Kavandi. After the spacewalk, crew members inside the Station attached connections to the airlock to prevent thermal damage.[6][NASA 8][NASA 9] Second spacewalk The second spacewalk which happened on July 18, lasted 6 hours, 29 minutes. The internal hatches between the shuttle and station were closed at the end of Flight Day 6 so Atlantis' cabin pressure could be lowered in preparation for the second spacewalk. The major objective was to attach and connect an oxygen and a nitrogen tank. Susan Helms operated the station arm to lift the tanks from the shuttle's payload bay and maneuver them to the new airlock. At the airlock, Mike Gernhardt and Jim Reilly latched the tanks in place and connected cables and hoses. The spacewalkers were able to get ahead of schedule and also install another oxygen tank, leaving only one tank to be connected on the third spacewalk.[6][NASA 9][NASA 10] Third spacewalk The third spacewalk, which occurred on July 21, was the first spacewalk based out of the new Quest Joint Airlock, and lasted 4 hours, 2 minutes. Primary objective was to install the final nitrogen tank outside the airlock.[NASA 9][7][8] This spacewalk tested a new protocol developed by former commercial diver Mike Gernhardt: essentially exercising while breathing oxygen to purge nitrogen from the spacewalkers' bodies.[9] Undocking and landing Main article: STS-105 In August, Space Shuttle Discovery returned to the station during the mission STS-105, which carried the three Expedition 2 crew members back down to Earth. They undocked from the station on 20 August 2001, marking the end of the Expedition 2 increment. Mission Patch The International Space Station Expedition Two patch depicts the Space Station as it appeared during the time the second crew was on board. The Station flying over the Earth represents the overall reason for having a space station: to benefit the world through scientific research and international cooperation in space. The number 2 is for the second expedition and is enclosed in the Cyrillic MKS and Latin ISS which are the respective Russian and English abbreviations for the International Space Station. The United States and Russian flags show the nationalities of the crew indicating the joint nature of the program. When asked about the stars in the background, a crew spokesperson said they "...represent the thousands of space workers throughout the ISS partnership who have contributed to the successful construction of our International Space Station."[NASA 11] Science activities An early image in Experiment of Physics of Colloids in Space (EXPPCS), taken during Expedition 2. It shows the diffraction pattern of a colloidal crystal made from polymethyl methacrylate spheres index matched to the solvent Two science racks, known as EXPRESS Racks No. 1 and 2, were delivered to the station in April aboard STS-100. One of the experiments on EXPRESS Rank No. 2 was the Experiment of Physics of Colloids in Space.[NASA 12] Several different colloid mixtures were studied, and the analysis is still underway.[NASA 13] References ^ a b c "ISS: Expedition 2". Retrieved January 3, 2011.  ^ "ISS EO-2". Encyclopedia Astronautica. Retrieved January 3, 2011.  ^ "ISS EP-1". Encyclopedia Astronautica. Retrieved 5 January 2011.  ^ "Mission ISS-2S". Retrieved January 5, 2011.  ^ "Mir EP-4". Encyclopedia Astronautica.  ^ a b Jim Banke (2001). "First spacewalk concludes". Retrieved October 21, 2008.  ^ Todd Halvorson (2001). "Quest Airlock Makes Orbital Debut as Astronauts Wrap Up Station Construction Work". Retrieved October 21, 2008.  ^ Jim Banke (2001). "Historic milestone at Alpha". Retrieved October 21, 2008.  ^ "Third spacewalk on schedule".  NASA ^ a b c "ISS Expedition Two Crew". NASA. Retrieved 3 January 2011.  ^ "Cosmonaut Bio: Yury Vladimirovich Usachev". NASA. August 2001.  ^ "Astronaut Bio: Susan J. Helms". NASA. May 2007.  ^ "Astronaut Bio: James S. Voss". NASA. Retrieved January 3, 2011.  ^ "International Space Station Expedition Two: Science Operations Overview". NASA. March 2001.  ^ "HSF - STS-100 Shuttle Archives". NASA. Retrieved 5 January 2011.  ^ "Soyuz 2 Taxi Flight Crew". NASA. Retrieved January 5, 2011.  ^ Boeing/NASA/United Space Alliance (2001). "STS-104 Spacewalks: Installing a Spacewalking Portal". Shuttle Press Kits. Retrieved October 21, 2008.  ^ a b c NASA (2001). "STS-104 Extravehicular Activities". NASA. Retrieved October 21, 2008.  ^ NASA (2001). "STS-104". NASA. Retrieved October 21, 2008.  ^ "International Space Station Imagery (Expedition 2 patch)". NASA.  ^ "Experiment of Physics of Colloids in Space (EXPPCS)". Glenn Research Center. Retrieved 29 October 2010.  ^ "EXPRESS Physics of Colloids in Space (EXPPCS)". NASA. 19 October 2010. Retrieved 29 October 2010.  External links Expedition 2 Photography v · d · eExpeditions to the International Space Station Current Expedition 28 Planned Expedition 29 • Expedition 30 • Expedition 31 • Expedition 32 • Expedition 33 • Expedition 34 • Expedition 35 • Expedition 36 • Expedition 37 • Expedition 38 • Expedition 39 Completed Expedition 1 • Expedition 2 • Expedition 3 • Expedition 4 • Expedition 5 • Expedition 6 • Expedition 7 • Expedition 8 • Expedition 9 • Expedition 10 • Expedition 11 • Expedition 12 • Expedition 13 • Expedition 14 • Expedition 15 • Expedition 16 • Expedition 17 • Expedition 18 • Expedition 19 • Expedition 20 • Expedition 21 • Expedition 22 • Expedition 23 • Expedition 24 • Expedition 25 • Expedition 26 • Expedition 27 Book:Expeditions to the ISS  · Category:Expeditions to the ISS  · Portal:Spaceflight