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	Extra-vehicular activity - Wikipedia, the free encyclopedia
		The first EVA to perform an in-flight repair of the Space Shuttle was by American astronaut Steve Robinson on August 3, 2005, during "return to flight" mission STS-114.
		The primary one is collision with space debris.
		Another reason for danger is that external environments in space are harder to simulate before the mission and that space walks are avoided for routine tasks because of their danger.
	en.wikipedia.org /wiki/Space_walk (921 words)

	ESA - Human Spaceflight - ‘Space Walk’ opens at the Museum of Sciences “Príncipe Felipe”, Valencia
		The walk, an interactive simulation, is part of the museum’s new exhibition on space.
		The ‘Space Walk’ is the permanent centrepiece of the museum’s Space Gallery ‘Rumbo al Cosmos’ (‘Heading for the Cosmos’).
		The 'Space Walk' was created by British specialists Helifilms and Farmer by Studios who designed, developed, researched, wrote and produced the attraction with the support and assistance of ESA and NASA.
	www.esa.int /esaHS/ESAQ51OED2D_index_0.html (443 words)

	Time Line of Space Exploration
		The mission is dedicated to the study of the effects of weightlessness on the human neurological system, with the astronauts serving as both researchers and experimental subjects.
		They perform three space walks, installing six new gyroscopes, a new guidance sensor, a new computer, a voltage/temperature kit for the spacecraft's batteries, a new transmitter, a new solid state recorder, and thermal insulation blankets.
		July 12, 2001 - Space Shuttle Atlantis lifts off in the pre-dawn darkness for the ISS with the Joint Airlock which will enable space walks to be performed directly from the space station itself (I am there to watch the launch!).
	my.execpc.com /~culp/space/timeline.html (5900 words)

	NASAexplores 9-12 Article: A SAFER Way To Space Walk
		Space walks, or extravehicular activities (EVAs), are an important part of the assembly of the International Space Station (ISS).
		Walking on the Moon meant that astronauts had to be able to leave their craft, untethered, in self-contained space suits.
		The next extravehicular space walks were not until the Space Shuttle era began in the early 1980s.
	www.nasaexplores.com /show2_912a.php?id=03-050&gl=912 (954 words)

	STS-100 EVA: STS-100 Space Walks -- Installing a New Generation of Robotics (Site not responding. Last check: 2007-11-07)
		Next, the two space walkers will remove the UHF antenna from its launch restraints on the pallet, and Hadfield will hold it while Ashby maneuvers him to the position where the antenna will be installed on the station.
		During much of the second space walk, Parazynski will be working from a foot platform attached to the end of Endeavour's robotic arm, again controlled by Ashby, while Hadfield works either free-floating or from fixtures attached to the station's exterior.
		Their second space walk begins with Hadfield and Parazynski opening a panel on the lab's exterior and Parazynski then connecting power, computer and video cables for the Destiny lab fixture to which one end of the Canadarm2 will then be attached.
	www.shuttlepresskit.com /STS-100/eva14.htm (1338 words)

	Space Walk
		The term "space walk" is somewhat misleading because astronauts float in space.
		An astronaut who is preparing for a "space walk" must wear a pressure suit because there is virtually no air pressure at 200 miles altitude.
		The first woman to perform a space walk was Soviet cosmonaut Svetlana Savitskaya during the Soyuz T-12 mission in July 1984.
	www.vibrationdata.com /space/eva.htm (514 words)

	Russian and U.S. Astronauts Begin Space Walk
		The team's space walk was scheduled to last six hours -- enough time for the Mir to circle the Earth four times and for temperatures in space to soar to hundreds of degrees (when the Mir is in sunlight) and to plunge to minus 150 degrees (when the Mir passes into darkness).
		Greg Harbaugh, a NASA specialist on space walks, said that Foale's space walk would help the Americans learn about the Russian space suit, safety practices and the disorienting experience of conducting a space walk outside the space shuttle bay.
		The crew's allies in the Russian space program rushed to their defense and on Friday the crew -- Vasily Tsibliyev and Alexander Lazutkin -- were rewarded with plots of land, medals and free mobile telephones.
	partners.nytimes.com /library/national/science/090697sci-russia-mir.html (1062 words)

	CNN.com - Troubled space walk a success - Dec. 1, 2002
		The space railcar is moving again after a stowed UHF antenna was opened.
		Within an hour, the glitch had been discovered and the space walk continued with only minor revisions to the schedule.
		The early problems were fixed within an hour of the start of the space walk.
	edition.cnn.com /2002/TECH/space/11/30/space.station (336 words)

	Space Walk of Fame Museum - Titusville Florida
		Oral histories from space workers documenting their work experience and personal feelings about their jobs and the roles they played in the early days of space exploration will be available through video and audio tapes in the summer of 2002.
		The U.S. Space Walk of Fame Foundation (USSWOFF) is a non-profit organization comprised of community leaders, aerospace industry officials and current and retired space workers.
		Engravings are sold through the Foundation enabling space workers, or their families, to honor the space worker by having his/her name placed on the appropriate space program monument/exhibit for posterity.
	www.nbbd.com /godo/spacemuseum (533 words)

	STS-96 EVA: Space Walk to Install U.S., Russian Crane Systems
		Preparations for the space walk begin early in the mission, on flight day two, with the checkout of the space suits, also called extravehicular mobility units, or EMUs.
		This technique reduces the time required for the astronauts to "prebreathe" pure oxygen so that nitrogen may be cleansed from their bloodstream to prevent a condition commonly called the "bends." The astronauts will prepare their EVA tools and review procedures for their installation operation on the third day of the mission.
		Jernigan, designated "EV1" will exit the airlock first and, after configuring tethers for the start of the space walk, will be joined by Barry, designated "EV2." Jernigan will be visibly distinguished by a red stripe around the legs on her space suit.
	www.shuttlepresskit.com /STS-96/eva6.htm (777 words)

	CNN - First spacewalk to repair Hubble Telescope begins Wednesday - December 21, 1999
		SPACE CENTER, Houston (CNN) -- Space shuttle Discovery astronauts will begin three days of spacewalks Wednesday in an effort to repair the crippled Hubble Space Telescope so it can again focus on stars, galaxies and other celestial objects.
		The two-day space chase, 370 miles (595 km) above Earth, saw the orbiter and the telescope flying over the Gulf of Mexico off the coast of Texas, where they were visible from the ground Tuesday evening at the Johnson Space Center.
		The space agency spends $25 million to operate the telescope every month whether it works or not.
	www.cnn.com /1999/TECH/space/12/21/shuttle.03/index.html (562 words)

	A Walk in Space - Preparing to Leave the ISS
		The space walkers will be Culbertson and Dezhurov and the space walk is slated for November 12, 2001.
		The object of this space walk, as it was with the previous two space walks, is to make electrical connections between Pirs and the Zvezda Service Module and to install equipment outside of the station.
		The object of this space walk, as it was with the previous two space walks, is to make electrical connections between Pirs and the Zvezda Service Module.
	www.windows.ucar.edu /headline_universe/walk_iss.html.backup_add_sun (736 words)

	Space Station Astronauts Walk in Space - Elites TV - Your Elite News Source
		American astronaut Leroy Chiao and Russian cosmonaut Salizhan Sharipov completed a successful walk in space Monday and installed equipment that will enable a European cargo craft to dock at the International Space Station to resupply the station.
		The space walk was supposed to take six hours but the mission was completed in only four-and-a-half hours.
		They have been on the space station for six months during which they have suffered problems with power and supplies.
	www.elitestv.com /pub/2005/Mar/EEN424819a107bc3.html (245 words)

	Station spacewalk will be far from routine - Space News - MSNBC.com
		Furthermore, over the more than three years since the international space station became permanently inhabited in November 2000, it was left unoccupied for several hours on four occasions when the crew flew their Soyuz transport spacecraft from one docking port to another.
		But since the grounding of the space shuttle fleet a year ago, the normal three-person station crew has been reduced to two in order to conserve supplies — and for a two-person spacewalk, simple arithmetic says there's nobody left to stay inside.
		Cosmonaut Alexander Kaleri's feet and backpack can be seen on the near side of a hatch leading from the Pirs docking module to the Soyuz escape capsule, during a spacewalk training session in November.
	www.msnbc.msn.com /id/4353884 (1347 words)

	Space
		This event triggers the space race between the United States and the Soviet Union.
		In 1998, at age seventy-seven, John Glenn becomes the oldest person to fly in space, as part of the STS-95 space shuttle crew.
		On June 3, 1965, Edward White II is the first American to walk in space on Gemini 4.
	teacher.scholastic.com /space/space_firsts (348 words)

	ESA Portal - ISS space walk number three a success
		The third and last space walk of the Endeavour STS-97 mission to the International Space Station (ISS) ended successfully on Thursday at 21.23 (UT).
		This last of the three space walks for the STS-97 mission lasted exactly five hours and 10 minutes, bringing the total space-walk time on this mission to 19 hours and 10 minutes.
		During this last walk, astronauts tensioned a solar blanket on the ISS starboard solar array and installed probes to measure the electrical potential of plasma around the station.
	www.esa.int /export/esaCP/GGGUVERZ0GC_index_0.html (219 words)

	Spacesuit Rain Dampens Space Walk
		During a space walk outside the International Space Station, Russian cosmonaut, Alexander Kaleri, reported that his spacesuit was warm and that it was raining inside is helmet.
		After slowing down and letting Foale do the work for a while, the space walk was ended after 3 hours and 55 minutes.
		It rained in a cosmonaut's spacesuit and there was a temperature problem that cut short a space walk on February 26th, for Political Babylon.
	www.biblenews1.com /history4/20040226.htm (876 words)

	Russian Space Agency (Site not responding. Last check: 2007-11-07)
		The Russian Space Agency (RKA) was formed after the breakup of the former Soviet Union and the dissolution of the Soviet space program.
		The Soviet space program was also the first nation to launch a satellite into orbit (Sputnik I) and competed against the United States in the race to the moon.
		The prime contractor used by the RKA is the Energiya Rocket and Space Complex, which owns and operates the Mission Control Center in Kaliningrad and operates the Mir space station.
	liftoff.msfc.nasa.gov /rsa/rsa.html (291 words)

	cooltech.iafrica.com \| space Today's ISS space walk could be last this year
		Today could be the last space walk this year from the International Space Station (ISS), as two US astronauts will venture outside the orbitting platform to make urgent repairs.
		Russian space sources told the news agency that the spacewalk "will probably be the last this year at the International Space Station." Russia had warned that it would have to reduce its participation in the 16-nation project if its cash-strapped space program did not receive additional external funding.
		Bowersox, Pettit and Budarin were due to return to earth in March, but their mission was extended following the uncertainty triggered by the Columbia disaster in which the seven astronauts aboard the US shuttle died as it disintegrated upon re-entry.
	cooltech.iafrica.com /space/226938.htm (437 words)

	BBC News \| SCI/TECH \| Spacewalkers fit power system
		The mast with solar-panelled wings weighs 17 tonnes and is the largest space station segment ever to be transported on a space shuttle.
		Two astronauts walking in space, and a third operating a robotic arm from inside the orbiter Endeavour, attached the mast to the space station.
		A pin holding one of the wings in its folded position has failed to unlatch properly, and an astronaut has been trying to fix the problem, which is believed to be a minor one.
	news.bbc.co.uk /hi/english/sci/tech/newsid_1052000/1052663.stm (456 words)

	Science and Technology/Space Exploration/Longest Space Walk (Site not responding. Last check: 2007-11-07)
		Their job was to make room on the International Space Station for the Italian cargo module Leonardo, which was carried into space by the space shuttle Discovery.
		During the walk, he made observations, took pictures, and practised freefalling while tethered by a cord to the spaceship.
		The device drifted off into space, but would have burned up as soon as it re-entered the Earth's atmosphere.
	www.guinnessworldrecords.com /gwr5/content_pages/record.asp?recordid=46910&Reg=1 (300 words)

	CNN - Astronaut savors first walk in space - Feb. 15, 1997
		The satellite's foil "skin" is torn and peeling away in some parts, and the 40-foot-long (12 meters) electricity-generating solar panels have taken a number of debris hits.
		Surprised by the extent of the damage, NASA mission managers were meeting Saturday to discuss options for repairing the insulation foil, which protects the satellite from the harsh temperatures of space.
		Mission managers declared the pair's walk "100 percent successful," and on Saturday said the new equipment appeared to be working properly.
	www.cnn.com /TECH/9702/15/hubble.am (745 words)

	APOD: August 1, 1999 - Walking in Space (Site not responding. Last check: 2007-11-07)
		APOD: August 1, 1999 - Walking in Space
		astronauts do not actually walk - they float - usually without their feet touching anything solid.
		free-fall of space since there is nothing (besides the spacecraft) to push off of to guide movements.
	antwrp.gsfc.nasa.gov /apod/ap990801.html (86 words)

	SPACE.com -- Alpha Crew Breezes Through First Ever ISS Spacewalk
		The spacewalk was the first to be staged by a resident crew of the 17-story station.
		Working within a section the size of a walk-in closet, Usachev removed a submarine-like hatch from a port facing the Earth, and Voss took time to look out the open door.
		Astrosociology is the study of astrosocial phenomena (social/cultural patterns related to space), a multidisciplinary field open to all scientists and engineers interested in "space and society" issues.
	www.space.com /missionlaunches/missions/iss_spacewalk_010608.html (610 words)

	CNN.com - Cosmonauts complete space walk for repairs - December 3, 2001
		The 30th space walk ended at 11:06 a.m.
		Space agency officials had correctly theorized that an obstruction was preventing hooks and latches from fully engaging to fasten the supply ship Progress to its docking port.
		EST Tuesday, since it appears the space walkers succeeded on their makeshift repair job.
	archives.cnn.com /2001/TECH/space/12/03/spacewalk (331 words)

	BBC News \| Sci/Tech \| Indoor space walk
		The crew had to put on their protective space suits and go into an airlock chamber before opening the hatch leading to the module.
		But in fact it was a difficult and risky operation, as astronauts in bulky space suits worked in tight quarters with sharp objects nearby.
		The 12-year-old space station, by far the longest serving spacecraft, is planned to be burned in Earth's atmosphere in June next year.
	news.bbc.co.uk /hi/english/sci/tech/newsid_172000/172460.stm (354 words)

	Russian and Frenchman perform space walk
		The third crew member, cosmonaut Sergei Avdeyev, was monitoring his crewmates from inside the orbiting space station.
		Then, a container of glue failed to open in space, apparently because of a faulty valve, jumbling an experiment to test equipment for patching holes in spaceships, Medvedkova said.
		They attached various organic substances in special casings to the outside of the ship to see what happens to living matter in space, and retrieved a French-made "meteorite trap" that was installed earlier this year to catch microscopic debris when Mir passed through a meteor shower.
	www.chron.com /content/interactive/space/missions/mir/news/1999/04/990416.html (539 words)

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