Jiashen February (seventh day), February 26, 2004, the United States and Russia SriLankan members have for the first time in the station unattended in state spacewalk.


2004 February 26, 2010, where the the Russian cosmonaut card column (lower left) outside the International Space Station to install the equipment.
2004 26 days on the International Space Station, two astronauts began extravehicular space walk at the same time. This is the first time since the International Space Station in November 2000 to live in for the first time, the astronauts in the station within the unattended state spacewalk.
Fu Alai and Russian cosmonaut card column this American astronaut spacewalks planned for about five and a half hours, the main task is to replace the space station some scientific laboratory equipment provided by Japan and Russia, and for the next year European unmanned cargo ship arrived at the space station to prepare. The astronauts will also install a Russian experimental setup similar to the human torso, the device contains a human tissue model, mainly used to study the impact of space radiation environment on the human body.
Earlier, the astronauts on the space station has been at least one person staying in the station spacewalk. But in February last year after the Columbia space shuttle, the United States remaining three space shuttles have been grounded, the space station is mainly dependent on Russian spacecraft to transport astronauts and cargo and supplies, the space station had to "lay off" long-lived The number of inhabitants reduced to 2 from 3. [L $ dj��.��r��]
the Russian side has been in favor of letting the astronauts in the space station unattended state spacewalk, NASA this not in favor of. Safety assessment after a few months, NASA on the 24th of this month, the final approval of the arrangement.