M3+-+4

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 * Category 4 – Space Station **
 * Skylab missions || NASA Past ||
 * Mir || NASA Past ||
 * International Space Station || NASA Current ||
 * International Space Station || NASA Current ||

NASA PAST Missions http://www.nasa.gov/missions/past/index.html NASA CURRENT Missions http://www.nasa.gov/missions/current/index.html __**Skylab**__
 * Skylab, the first US space station
 * Launched into orbit on May 14, 1973
 * This 91 metric ton structure was 36 meters (four stories) high, 6.7 meters in diameter and flew at an altitude of 435 km (270 miles).
 * Charles Conrad, Joseph Kerwin, and Paul Weitz from May 25 to June 21, 1973; Alan Bean, Owen Garriott, and Jack Lousma from July 28 to September 24, 1973; and Gerald Carr, Edward Gibson, and William Pogue from November 16, 1973 to February 8, 1974.
 * two X-ray telescopes (S-054
 * an ultraviolet spectroheliometer
 * an extreme ultraviolet spectroheliograph
 * __M.I.R__**

http://www.russianspaceweb.com/mir.html

__**International Space Station**__
 * With Expedition 17 officially in command of the International Space Station, Expedition 16 is packed up and ready to return to Earth. Outgoing commander Peggy Whitson handed over controls of the orbiting complex to new commander Sergei Volkov Thursday afternoon.
 * Going home with Whitson is Flight Engineer Yuri Malenchenko and South Korean spaceflight participant So-yeon Yi. They will undock Saturday at 1:06 a.m. EDT in their Soyuz TMA-11 and land in the steppes of Kazakhstan at 4:30 a.m.