The International Space Station
The International Space Station (ISS) is a habitable human-made satellite that orbits Earth at an altitude of between 205 miles and 270 miles. It comprises pressurized modules for astronauts to live in, external trusses for propulsion, solar arrays for power and many other amazing features.
The first part of the ISS sent to space was the module called Zarya. It was launched into space on a Russian Proton rocket on November 20th, 1998. Zarya provided propulsion, attitude control, communications and electrical power. Two weeks later, NASA launched a module called Unity aboard the Space Shuttle Endeavour, successfully attaching it to the Zarya module. The Unity module was equipped with all the requirements for long-term human living.
The ISS is now the largest artificial body in orbit. It is 357 feet in length, making the space station's area span about the size of an American football field. The space station weighs nearly 925,000 pounds! It has 2 bathrooms, a gym and more room than a six bed-room house...
Read more about The International Space Station in today’s Science Fun!
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