Template:Short description Template:For Template:Infobox spaceflight
Expedition 1 was the first long-duration expedition to the International Space Station (ISS). The three-person crew stayed aboard the station for 136 days, from 2 November 2000 to 19 March 2001. It was the beginning of an uninterrupted human presence on the station which continues as of 2025.
The official start of the expedition occurred when the crew docked to the station on 2 November 2000, aboard the Russian spacecraft Soyuz TM-31, which had launched on 31 October 2000 at the Baikonur Cosmodrome in Kazakhstan.<ref>Template:Cite news</ref><ref name="SPACE-Nov2">Template:Cite news</ref> During their mission, the Expedition 1 crew activated various systems on board the station, unpacked equipment that had been delivered, and hosted three visiting Space Shuttle crews and two uncrewed Russian Progress resupply vehicles. The crew was very busy throughout the mission,<ref name="SPACE-Jan24">Template:Cite news</ref> which was declared a success.
The three visiting Space Shuttles brought equipment, supplies, and key components of the space station. The first of these, STS-97, docked in early December 2000, and brought the first pair of large U.S. photovoltaic arrays, which increased the station's power capabilities fivefold.<ref name="HSF-STS97">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The second visiting shuttle mission was STS-98, which was docked in mid-February 2001 and delivered the US$1.4 billion research module Destiny, which increased the mass of the station beyond that of Mir for the first time.<ref name="HSF-STS98">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Mid-March 2001 saw the final shuttle visit of the expedition, STS-102, whose main purpose was to exchange the Expedition 1 crew with the next three-person long-duration crew, Expedition 2.<ref name="HSF-STS102">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The expedition ended when Discovery undocked from the station on 18 March 2001.
The Expedition 1 crew consisted of an American commander and two Russians. The commander, Bill Shepherd, had been in space three times before, all on shuttle missions which lasted at most a week. The Russians, Yuri Gidzenko and Sergei K. Krikalev, both had previous long-duration spaceflights on Mir, with Krikalev having spent over a full year in space.<ref name="NASAyuri">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="NASAsergei">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="TIME-Nov2">Template:Cite magazine</ref>
CrewEdit
The commander, Bill Shepherd, was a former Navy SEAL, whose only spaceflights were on shuttle missions, and at the beginning of the mission his total time in space was about two weeks.<ref name="NASA-Shep">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Questions had been raised by the Russian space agency about the choice of Shepherd as mission commander due to his lack of experience.<ref name="TIME-Nov2" /> Flight engineer Sergei Krikalev had spent over a year in orbit, mostly on Mir, and would become the first person to visit the ISS twice.<ref name="ISS-49">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> He had felt excitement to have been one of the first people to enter the Zarya module (the first component of the space station) in 1998, during STS-88, and was looking forward to returning.<ref name="Sergei-Int" /> Yuri Gidzenko was designated commander and pilot of the two-day Soyuz mission to the station, had one previous spaceflight, which was a 180-day stay aboard Mir.<ref name="NASAyuri" />
Shepherd was only the second U.S. astronaut to be launched in a Russian spacecraft, the first being Norman Thagard, who launched on Soyuz TM-21 to visit Mir in 1995.<ref name="NASApresskit" /> Shepherd expected one of the biggest challenges for the ISS would be the compatibility of technologies between Russian and U.S.<ref name="Shep-Inv">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
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BackgroundEdit
The first component of the International Space Station was the Zarya module, which was launched uncrewed on 20 November 1998.<ref name="NASAzarya">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Between this launch and the arrival of the first crew, five crewed Space Shuttle missions from the U.S. and two uncrewed Russian flights expanded the station and prepared it for human habitation.
Four of the five Shuttle flights focused primarily on delivering and unpacking substantial cargo for future crews. STS-88 launched on 4 December 1998, delivered the Unity module, the first component of the US Orbital Segment (USOS) during the mission, the crew spent several hours unpacking and setting up both Unity and Zarya.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Krikalev, who would be a Flight Engineer on Expedition 1 flew on STS-88 and together with Shuttle Commander Robert D. Cabana became the first two people to jointly enter Unity and later Zarya.
STS-96, in May 1999, delivered Template:Convert of pressurized cargo, Template:Convert of water, and Template:Convert of unpressurized cargo that was attached during a nearly eight hour EVA.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Space Shuttle Atlantis visited the station during the STS-101 mission in May 2000. It delivered another Template:Convert of pressurized cargo, and performed station maintenance.<ref name="STS-101 Returns">Template:Cite news</ref> Near the end of the mission, they used Atlantis’ thrusters to boost the ISS by Template:Convert into a Template:Convert orbit.<ref name="STS-101 Launch">Template:Cite news</ref> Three of STS-101’s crew members — Yury V. Usachev, James S. Voss and Susan J. Helms — would visit the station the following year as the crew of Expedition 2.<ref name="STS-102 Lands">Template:Cite news</ref>
The Zvezda module, the crew's living quarters, launched on 12 July 2000 and autonomously docked on the 26th. It was followed by the unmanned Progress M1-3 cargo spacecraft which docked on 8 August. STS-106, in September 2000, connected Zvezda to Zarya, delivered Template:Convert of cargo including Template:Convert of water, a vacuum cleaner, office supplies, and all of the food for the Expedition 1 crew. In total, the crew spent nearly five and a half days inside the station unloading both the Shuttle and the Progress and setting everything up for the Expedition 1 crew.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
While not necessary to the mission of Expedition 1, the Space Shuttle did conduct one additional flight before the crew’s arrival, STS-92 in October 2000, which delivered and installed the first piece of the Integrated Truss Structure along with an additional Pressurized Mating Adapter. This mission would enable future expansion of the USOS.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Prior to Expedition 1, Krikalev expected the ISS to be very similar to his experience on Mir ten years previous, due to the physical similarities of the stations' components.<ref name="Sergei-Int">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
The launch of the Expedition 1 crew occurred a week before the United States presidential election, so it got little attention in the United States.<ref name="NYT-Nov1">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> At the time of the mission, the station was expected to be completed in 2006, and be continuously inhabited until at least 2015.<ref name="NYT-STS97" /> Due to several delays, including the fallout from the Space Shuttle Columbia disaster, the station was not completed until 2021, with the arrival of the Nauka laboratory.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }} Template:PD-notice</ref>
Mission highlightsEdit
The crew of three were on board the International Space Station for four and a half months, from early November 2000 to mid-March 2001. Major events during this time include the three-week-long Space Shuttle visits, which occurred in early December, mid-February, and at the end of the expedition in March.
Launch and dockingEdit
The three-member Expedition 1 crew successfully launched on 31 October 2000, at 07:52 UTC, atop a Soyuz-U rocket on Soyuz TM-31 from the Baikonur Cosmodrome in Kazakhstan; they used launch pad Gagarin's Start, from which the first human to fly in space, Yuri Gagarin, was launched in 1961.<ref name="CTV-Oct30">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="ABC-Nov6">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="NASApresskit" /> After 33 orbits of the Earth, and a series of rendezvous maneuvers performed by Gidzenko, they docked the Soyuz capsule to the aft port of the Zvezda Service Module on 2 November 2000, at 09:21 UTC.<ref name=time20001102>Template:Cite magazine</ref> Ninety minutes after docking, Shepherd opened the hatch to Zvezda and the crew members entered the complex.
AlphaEdit
At the end of the first day on the station, Shepherd requested the use of the radio call sign "Alpha", which he and Krikalev preferred to the more cumbersome "International Space Station".<ref name="TIME-Nov2" /> The name "Alpha" had previously been used for the station in the early 90s,<ref name="GAO">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> and following the request, its use was authorized for the whole of Expedition 1.<ref name="SPACE-Nov3">Template:Cite news</ref> Shepherd had been advocating the use of a new name to project managers for some time. Referencing a naval tradition in a pre-launch news conference he had said: "For thousands of years, humans have been going to sea in ships. People have designed and built these vessels, launched them with a good feeling that a name will bring good fortune to the crew and success to their voyage."<ref name="SPACE-Nov2-b">Template:Cite news</ref> Template:Ill, the President of Russian Space Corporation Energia at the time, disapproved of the name "Alpha"; he felt that Mir was the first space station, and so he would have preferred the names "Beta" or "Mir 2" for the ISS.<ref name="SPACE-Nov3" /><ref>Template:Cite news</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
First monthEdit
In their first weeks on board, the Expedition 1 crew members activated critical life support systems and computer control, as well as unpacked supplies left behind for them by previous supply missions. At this time the station did not have enough electricity to heat all three pressurized modules, so Unity was left unused and unheated.<ref name="SPACE-Jan7">Template:Cite news</ref> Unity had been used for the past two years to allow U.S. flight controllers to command ISS systems and read station system data.
The Russian uncrewed resupply spacecraft Progress M1-4 docked to the station on 18 November. The Progress spacecraft's automatic docking system failed, necessitating a manual docking controlled by Gidzenko using the TORU docking system.<ref name="SPACE-Nov18">Template:Cite news</ref> Although manual dockings are routine, they have caused some concern among flight controllers since an attempt in 1997 which resulted in the spacecraft colliding with Mir, causing significant damage.<ref name="Spaceflightnow-Dec21">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
The astronauts had a heavy workload in the first month, as Shepherd told reporters in a space-to-ground interview: "To me, the biggest challenge is trying to pack 30 hours into an 18-hour work day."<ref name="SPACE-Nov29">Template:Cite news</ref> Some of the early tasks took longer than scheduled. For example, the activation of a food warmer in Zvezda's galley was scheduled for 30 minutes, but it took the astronauts a day and a half to turn it on.<ref name="SPACE-NOV3" />
STS-97Edit
{{#invoke:Labelled list hatnote|labelledList|Main article|Main articles|Main page|Main pages}} Endeavour docked with the ISS on 2 December 2000, on mission STS-97, bringing four more Americans and a Canadian temporarily to the station.<ref name="Garneau lifts off on STS-97">Template:Cite news</ref> The shuttle also brought the first pair of U.S. provided photovoltaic arrays, which would provide crucial electricity for further development of the station.<ref name="Second Solar Attached">Template:Cite news</ref> In total, STS-97 brought 17 tons of equipment to the ISS, which also included expandable metal girders, batteries, electronics and cooling equipment.<ref name="NYT-STS97">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Three spacewalks were conducted by the crew of STS-97, all of which were completed prior to opening the hatch between shuttle and station. On 8 December, the hatch between the two was opened and the two crews greeted each other for the first time. It had remained closed to maintain their respective atmospheric pressures.<ref name="NASA-STS97">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The Expedition 1 crew took this opportunity to leave the station and tour the inside of the space shuttle, which was thought to be good for their psychological well-being.<ref name="SPACE-Jan7" />
Progress M1-4Edit
Prior to Endeavour docking, the Russian resupply spacecraft Progress M1-4, which came to the station in mid-November, was undocked to make room for the space shuttle.<ref name="NYT-Dec2">Template:Cite news</ref> This Progress spacecraft remained undocked for the duration of STS-97, parked in orbit about 2,500 kilometers behind the station. It docked manually again with the station on 26 December by Gidzenko, after Endeavour left. The automatic docking system for this Progress spacecraft had failed on the first docking in November.<ref name="DecLog">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The crew spent much of the following week unloading the Progress spacecraft.<ref name="ISS-63">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Christmas and New YearEdit
On Christmas Day, the Expedition 1 crew were given the day off work. They opened presents delivered by Endeavour and the Progress supply ship.<ref name="BBC-Dec25">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> They also each took turns speaking to their families. In the following days they did several video downlinks, some with Russian TV stations.<ref name="DecLog" /> The crew had a quiet New Year. Citing a Naval tradition, for the New Year's entry of the station's log, Shepherd provided a poem on behalf of the crew.<ref name="ISS-64">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
STS-98Edit
{{#invoke:Labelled list hatnote|labelledList|Main article|Main articles|Main page|Main pages}} On 9 February 2001, Space Shuttle Atlantis docked to the ISS, bringing the five American crew members of STS-98 temporarily to the station. The mission was originally planned for mid-January, but was delayed due to NASA's concerns about some cables on the shuttles.<ref name="BBC-Feb7">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> This mission brought the U.S. built Destiny laboratory, which has a mass of 16 short tons. It was installed with the use of the shuttle's robotic Canadarm, controlled by Marsha Ivins. Astronauts Thomas D. Jones and Robert L. Curbeam helped with the installation during a spacewalk. The Destiny module had a cost of US$1.4 billion, and would be used primarily for scientific research.<ref name="NASA-STS98">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="BBC-STS98">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> During the spacewalk an ammonia coolant leak created a contamination scare, which happened when Curbeam was hooking up coolant lines to Destiny.<ref name="SPACE-Feb10">Template:Cite news</ref> The other two spacewalks went ahead without any problems. While the Shuttle was docked, the control of the station's orientation was switched from propellants to electrically powered gyroscopes, which had been installed in September 2000. The gyroscopes had not been used earlier due to the lack of key navigational electronics.<ref name="NASA-STS97-7">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
By the end of STS-98, the crew of Expedition 1 had been on the station for over three months, and Shepherd stated that he was "ready to come home".<ref name="SPACE-Feb20">Template:Cite news</ref> NASA used several techniques to prevent the three crew members from suffering the effects of the "three-month wall" psychological barrier, which had caused depression in previous astronauts. For example, they allowed more time for the crew to speak to their families via videophone, and they also encouraged them to watch movies and listen to music they like.<ref name="SPACE-Jan7" />
Progress M-44Edit
On 28 February the third Progress spacecraft to visit the ISS, Progress M-44, docked to the Zvezda module. It brought air, food, rocket fuel and other equipment.<ref name="BBC-Feb26">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> It remained docked until Expedition 2, when it was intentionally burnt up during atmospheric reentry, like all Progress spacecraft.
STS-102Edit
{{#invoke:Labelled list hatnote|labelledList|Main article|Main articles|Main page|Main pages}} Space Shuttle Discovery docked on 10 March 2001, bringing to the ISS the new long-duration three-person crew of Expedition 2, as well as four short-term crew members of STS-102. A few hours after docking, the hatch opened, and all ten astronauts greeted each other, setting a new record for the number of people simultaneously in the ISS.<ref name="NASA-STS102">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The day after docking, American astronauts Jim Voss and Susan Helms began a spacewalk which ended up being nearly nine hours long, and still holds the record for the longest spacewalk ever performed, as of August 2010. The length of the spacewalk was partially due to some mistakes, including Voss accidentally releasing a small tool. Unable to retrieve it, NASA engineers tracked the tool, and decided to use DiscoveryTemplate:'s thrusters on 14 March to boost the station four kilometers higher, to ensure the ISS would not collide with the piece of space debris.<ref name="BBC-Mar15" />
Transferring expedition crewsEdit
By 14 March, the expedition crews had completed the change over, but until the shuttle undocked, Shepherd officially remained commander of the station.<ref name="BBC-Mar14">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The morning of the 14th the astronauts' wake-up call was the song "Should I Stay or Should I Go" by The Clash, at the request of Shepherd's wife.<ref name="BBC-Mar15">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Shepherd, a former Navy SEAL, said during the change over ceremony: "May the good will, spirit and sense of mission we had enjoyed on board endure. Sail her well."<ref name="SPACE-Mar18">Template:Cite news</ref> The commander of Discovery, Jim Wetherbee, said "For Captain Shepherd and his crew, we hold you in admiration as we prepare to bring you home. This has been an arduous duty for you. This ship was not built in a safe harbor. It was built on the high seas."<ref name="SPACE-Mar18" />
At about 01:30Template:NbspUTC, one hour before his departure, Expedition 1 Commander Bill Shepherd held a "change of command ceremony" to transfer control of the station to Expedition 2 Commander Yury Usachev.<ref name="STS-102 Status Report 23" />
Undocking and landingEdit
The crew's four and a half-month tour aboard the ISS officially ended on 19 March 2001, when the hatch between Discovery and the ISS was closed at 02:32Template:NbspUTC.<ref name="STS-102 Status Report 23" /> At 04:32Template:NbspUTC, Mission Specialist Andy Thomas sent a command that released the docking mechanism and springs within the mechanism gently pushed the shuttle away from the station. During the initial separation, steering jets on both the shuttle and station were disabled to avoid any inadvertent firings. Once Discovery was about Template:Convert away from the station, shuttle pilot James Kelly, standing at the aft flight deck controls turned the steering jets back on and fired them to begin slowly moving away.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
The Expedition 1 crew returned home to Earth on STS-102, landing on 21 March 2001, on a rare night landing at 2:30 am local time.<ref name="BBC-Mar21">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Two days after the landing, coincidentally, Mir was intentionally burned up during atmospheric reentry, ending its 15 years in orbit.
Daily activitiesEdit
In a typical day, each crew member divided his time between physical exercise, station assembly and maintenance, experiments, communications with ground personnel, personal time, and bio-needs activities (such as rest and eating).<ref name="ISSpaper">Template:Cite journal</ref> The crew's daily schedule usually operated on UTC; for example, a typical morning had been scheduled to begin with an electronic wake-up tone at about 05:00 UTC.<ref name="NASApresskit">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> But during the expedition, a more typical wake-up time was actually between 06:00 and 07:00 UTC.<ref name="DecLog" /><ref name="JanLog" /> The crew's sleep habits were sometimes shifted to accommodate the schedules of visiting shuttles or resupply vehicles.<ref name="ISSreportNov9">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Following the wake-up call, the crew was given some time to clean up, have breakfast, and read e-mail which had been uplinked to them from flight controllers.<ref name="NASApresskit" /> Their work day included a lunch break at midday (UTC), and ended with a mid-afternoon planning session with flight controllers, regarding the next day's activities.<ref name="NASApresskit" /><ref name="SPACE-NOV3">Template:Cite news</ref> Most days ended with some entertainment, with the crew watching all or part of a movie; this was thought to be good for crew bonding as well as their psychological well-being.<ref name="SPACE-Jan7" /> After watching 2010, the sequel to 2001: A Space Odyssey, Shepherd commented, "[There is] something strange about watching a movie about a space expedition when you're actually on a space expedition".<ref name="JanLog">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
An important part of the crew's schedule was regular exercise. They had three pieces of equipment for this: a stationary bicycle, a treadmill (TVIS), and a resistance device (IRED) for weight-lifting. The bicycle malfunctioned in mid-December 2000, and wasn't fixed until March.<ref name="DecLog" /><ref name="FebMarLog">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The treadmill, which used bungee cords to keep the crew member in place, was designed to reduce the vibrations caused by running. A normal treadmill would have produced enough vibrations to shake the station, and potentially affect the sensitive science experiments on board. The treadmill malfunctioned near the end of February, but some in-flight maintenance fixed the problem within a week.<ref name="FebMarLog" />
Ground communicationsEdit
Until the Unity module was available for use a month into the mission, the astronauts used the Russian VHF communications gear (also called the "Regul radio link") in Zvezda and the Zarya module to communicate with the Russian Mission Control Center (known as "TsUP") in Korolev, outside Moscow.<ref name="TIME-Nov2" /><ref name="RuSpaceComm">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="FloridaToday">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The Russian technology didn't have the use of satellites, so they were restricted to ground passes (called a "comm pass") which lasted for only 10–20 minutes. With the arrival of the solar arrays on STS-97, they activated the S-band Early Communication gear in the Unity Module, allowing for more continuous communication with Mission Control in Houston via NASA's network of Tracking and Data Relay Satellites.
During STS-106 in September 2000, the equipment for a ham radio was delivered to the station. The first 'ham' contact with the ground by the Expedition 1 crew was on 13 November 2000 on a pass over Moscow, shortly followed by contact with Goddard Space Flight Center in Greenbelt, Maryland.<ref name="NovLog">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="HFRadio">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The crew reported that "Voice quality of ham radio continues to be well above any of our other links."<ref name="NovLog" />
The Amateur Radio on the International Space Station project had the crew of the station to make brief windows to radio contact with schools and clubs on the ground. The first school to be contacted by the ISS was Luther Burbank School in southwest Chicago. The contact had been planned for 19 December 2000, but due to technical problems, it was delayed to 21 December 2000.<ref name="Jan30-school">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Due to the speed of the space station, the window of radio contact only lasted for 5–10 minutes, which was usually enough for 10 to 20 questions.<ref name="ARISS">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Science activitiesEdit
{{#invoke:Labelled list hatnote|labelledList|Main article|Main articles|Main page|Main pages}} Unlike subsequent expeditions, the crew of Expedition 1 had a somewhat modest amount of science experiments to conduct, due to the priority placed on station construction.<ref name="NASApresskit" /> The plasma crystal experiment, known as PKE-Nefedov, was one of the first natural science experiments conducted on the space station. It was a collaboration between the Max Planck Institute for Extraterrestrial Physics in Germany, and the Institute for High Energy Densities (part of the Russian Academy of Sciences).<ref name="MPG">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="MPG2">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Like previous missions, the astronauts took many photos of Earth from the station, over 700 in total, which have been made freely available.<ref name="Photos">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> These Crew Earth Observations, are intended to record dynamic events on the Earth's surface such as storms, fires, or volcanoes.<ref name="NASAceo">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> For example, a photo of 1 January 2001 shows Mount Cleveland, Alaska, with a plume of smoke, prior to its eruption the following month.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> On 23 January 2001, the crew observed a unique perspective of a plume of volcanic ash coming from Popocatépetl, an active volcano 70 kilometres southeast of Mexico City.<ref name="MexicoVolcano">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
An example of a low-maintenance experiment was the protein crystal growth experiment, which had also been flown on previous shuttle missions.<ref name="NASApcg">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The goal was to produce better protein crystallizations than those produced on the Earth, and hence allowing for a more accurate model of protein structures. Of the 23 proteins and viruses attempted during Expedition 1, only four resulted in successful crystallizations, which was a lower success rate than predicted.<ref name="NASApcg" /> Of those successful was the low-calorie sweetener Thaumatin, whose crystals diffracted at a higher resolution than Earth-grown crystal, which resulted in a more accurate protein structure model.<ref name="NASApcg" />
Another research activity was measuring the crew's heart rates and the station's carbon dioxide levels to determine the effect of exercise on the station.<ref name="NASApresskit" />
IMAX filmingEdit
Throughout the mission the Expedition 1 crew filmed footage for use in the IMAX documentary film, Space Station 3D.<ref name="IMAX">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Highlights of the footage include the first entry into the Destiny module, during STS-98; the Expedition 1 crew showering and shaving in zero gravity; and the docking of STS-102, followed by the change over to the Expedition 2 crew.<ref name="IMAX" />
ReferencesEdit
NASAEdit
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External linksEdit
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