Living in Space- Space Talks# 1

Astronauts must adapt to a zero-gravity environment when weightlessly can be fun, it can also cause medical problems.
Space stations are cramped places with few luxuries. Astronauts eat ready-made meals that are either freeze-dried or served in pouches.
All water is recycled, including the water vapour from human breath.
Astronauts clean themselves with special shampoos and soaps that don't need water, and they use space toilets that suck away waste rather than flushing with water.

Effects on the Body:-

Spaceman

When the human body spends a long time in space, it changes. Without gravity pulling on the spine, the body gets about 5 cm ( 2 in ) taller. Body fluids that flow downwards on Earth build up in the head. This gives astronauts swollen faces and blocked noses, making food seem tasteless. When astronauts come back to Earth, the return of full gravity can make them feel extremely weak.

Space stations:-  

A space station is a crewed satellite - a kind of orbiting laboratory in which astronauts and scientists live and work. The USSR launched the first station, Salyut 1, in 1971.

Salyut 1 (USSR)

  The USA soon followed with Skylab, in 1973. Russia's Mir, in use from 1986 to 2001, was the most successful station until the USA, Russia, and more than 10 other countries joined forces to build the International Space Station, in orbit since 1998. China's own space station prototype, Tiangong-1, was launched in 2011.

Skylab (USA)

Mir (USSR)

Tiangong -1 (China)

 

International Space Station