SOLAR SYSTEM

Detailed explanation-1: -The ISS is an orbital laboratory and has hosted more than 250 people since 1998.

Detailed explanation-2: -The International Space Station is a large spacecraft in orbit around Earth. It serves as a home where crews of astronauts and cosmonauts live. The space station is also a unique science laboratory.

Detailed explanation-3: -On April 19, 1971, the Soviet Union placed into orbit Salyut, the world’s first space station. Designed for a 6-month on orbit operational lifetime, Salyut hosted the crew of Georgi T.

Detailed explanation-4: -A space station is a spacecraft capable of supporting a human crew in orbit for an extended period of time and is therefore a type of space habitat. It lacks major propulsion or landing systems.

Detailed explanation-5: -The International Space Station is a platform for scientific research that requires one or more of the unusual conditions present in low Earth orbit (for example microgravity, (cosmic)-radiation and extreme temperatures).

Detailed explanation-6: -In 1986, the Russians launched the Mir space station, which was intended to be a permanent home in space. The first crew, cosmonauts Leonid Kizim and Vladymir Solovyov, shuttled between the retiring Salyut 7 and Mir. They spent 75 days aboard Mir.

Detailed explanation-7: -The station travels from west to east on an orbital inclination of 51.6 degrees. Each orbit takes 90-93 minutes, depending on the exact altitude of the ISS. During that time, part of the Earth is viewed under darkness and part under daylight.