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International Space Station : Expedition Crews | EVA | Timelines | Science

Time in Orbit How do these work? Crew Information Pick A Kit --------------- Exp. 10/Present Exp. 9 (2.5 Mb) Exp. 8 (2.6 Mb) Exp. 7 (3.4 Mb) Exp. 6 (1.7 Mb) Exp. 5 (2.2 Mb) Exp. 4 (1.1 Mb) Exp. 3 (2 Mb) Exp. 2 (1.1 Mb) Exp. 1 (1.5 Mb) Pick A Crew ----------------- Soyuz 5 Soyuz 4 Soyuz 3 Soyuz 2 Exp. 1 Interactives � Interactives Station History Station Racks Integrated Truss 10 Years Reference Guide Mission Control Soyuz TMA Station Science ISS Attitudes Requires Flash Player ISS Science Space Station Science Related Links ISS Timelines Latest ISS Statistics Current ISS Status Reports ISS History Five Years of Human Occupancy on the ISS Four Shining Years of Humans in Space Holidays in Space Space Station Ham Radio ISS Video Tour Hosted by Astronaut Ken Bowersox Living in Space Personal Space Station Imagery Station Gallery ISS Artwork ISS Earth Observation Imagery Image Chronology of ISS Assembly Sequence Realtime Station Data Can I see the space station from my back yard? Where is the space station? Can I track the station?

Space station updates have moved. Please go to the Space Station page on the NASA Web for continuing international space station coverage. The Expedition 6 crew grew this plant in a greenhouse in the Zvezda Service Module. More plant growth images ISS Science Looks to Mars Can humans live on Mars? Is it safe? The Vision for Space Exploration opens the door for NASA to find out. Researchers on Earth are using several experiments aboard the international space station to study health and safety issues. Space travelers living on Mars for extended periods will need to grow plants, which provide food and generate oxygen. But the decreased gravity and low atmospheric pressure environment will stress the plants and make them hard to grow. Greenhouses in the Station's Destiny Laboratory and in the Zvezda Service Module grow plants in a controlled environment. Station crews tend the plants, photograph them and harvest samples for return to Earth. Researchers can use the resulting data to develop new techniques for successfully growing plants in space. NASA is also concerned about health hazards posed by space radiation. A spacecraft bound for Mars will be exposed to substantial amounts of radiation, and it will have to protect the humans inside from exposure. On the station, sensors inside the crew areas monitor radiation levels. NASA scientists, who have maintained radiation data since the beginning of human space flight, continue to learn about the dangers it poses. Researchers use the station to test materials that could be used for Mars-bound spacecraft. Will it ever be safe for humans to live on Mars? Researchers are learning more every day, thanks to the results of ISS experiments.

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