Future of ISS
|Automatic translation||Updated June 01, 2013|
The International Space Station (ISS) is placed in low Earth orbit at 340 km altitude, it goes around the Earth in 90 minutes at the speed of 27 700 km / h or 7.7 km/s. This station is occupied continuously since the 2000s, an international crew that is dedicated to scientific research in the space environment where it sees about 16 sunrises and sunsets every day.
The United States planned to implement a new manned vehicle, called Orion, cheaper and more reliable than their current shuttle. This vehicle will probably not be ready until 2015.
Image: which owns the space?
Largest space structure ever realised
ISS, the ISS (International Space Station), allows to perform experiments in many scientific fields. The program cost was estimated at 70 billion euros (15 cents per day and by Europeans throughout the program), probably 100 to 115 billion today. Contributors (U.S., Russia, Canada, Japan, Europe). The dimensions of this experimental station, are equivalent to those of a football field. It is also a viewing platform on Earth and the Universe. Since the first launch in 1998, 2 or 3 astronauts permanently occupy the station to see the Earth from above. The elements of the station are sent one by one into space and assembled automatically or by astronauts. This structure is exposed to space debris created by man. Explosive debris, remnants of engines, paint chips, coolant and other items lost during the work, moving about 20 km/s. There are millions of micrometeorites that circulate naturally around the Earth on every orbit.
The space station is in an orbit where.
Image: The International Space Station, is the largest structure ever created by man in space. It orbits 340 kilometers above sea level and is the subject of 2 debris alerts per day.
Anguish of the lonely man
An astronaut moves in free flight, about 100 meters from the cargo bay of the Space Shuttle Challenger. Bruce McCandless became the first man to go so far from home space. Guided by a manned maneuvering unit (MMU), astronaut McCandless, pictured here, has floated freely in space, unattached.
Image: The first free flight in space of a man with a maneuvering unit (MMU) in 1984.
ISS and the shuttles
The shuttles have contributed greatly to building the International Space Station, during the decade 2000-2010.
Image: Image of Space Shuttle Endeavour docked with the international space station. The space shuttle was finally laid in May 2011 on the runway at Cape Canaveral in Florida. During his 16-day mission, it made one last visit to the International Space Station. Since its commissioning in 1992, space shuttle Endeavour has completed 25 flights, from a total of 299 days in space.
Movie night around the Earth from the sky
Every 90 minutes, the astronauts aboard the International Space Station live this extraordinary experience. They travel to low Earth orbit at 415 km altitude and travel the beautiful land areas that place under the station at a speed of 27 700 km/h or 7.7 km/s. In 2011, members of the crew took a series of videos of their journey around the Earth, looking "down" at night. These videos were merged to produce the accelerated video below cons, 5 minutes. This wonderful view of the Earth and the sky is 18 sequences, 18 "half" turns away in the night, away from direct sunlight.
Image: These video clips were taken by the expedition 28 and 29 of the International Space Station, from August to October 2011. Image Credit: NASA Johnson Space Center.
Space station is easily identifiable
The International Space Station photographed in perspective, before the Moon, January 4, 2012 from Houston. ISS running on a low orbit, between 330 and 420 km altitude around the Earth, passes sometimes in front of the moon which is between 363,300 km and 405,500 km from Earth. The International Space Station is recognizable in the night sky, easily, because it reflects the intense rays of the Sun, with a surface area of 2500 m2 of solar panels, which provide 110 kilowatts of electricity it needs to operate.
The controlled station deorbiting is the responsibility of of NASA. It is envisaged that the cargo ship back into the lower layers of the atmosphere so that it disintegrates into small pieces and falls on Earth.
Image:The International Space Station photographed in perspective, before the Moon image taken on January 4, 2012 by NASA, from Houston © NASA