Introduction
More than 350 people have travelled into space; 26 on missions to the moon and the rest in orbit around the earth. For journeying into space, astronauts must be physically and mentally fit. They mt also be trained to prepare them for living and working in the hostile environment of space.
Living In Space
Daily life for an astronaut includes all the usual things, such as breathing, eating, sleeping and going to the bathroom. The big difference, however, is living in weightless conditions. Sleeping astronauts float around spacecraft unless tethered down and using toilet has to be carefully controlled.
Spacesuit
When astronauts work outside the spacecraft, they need to wear a suit that keeps their body at the correct temperature and protect them from fast-moving micro-meteoroids. The suit must also provide oxygen to breath because there is no air or atmospheric pressure in space.
Working In Space
Each member of a space crew has specified tasks. These may include flying the craft, releasing a satellite into orbit, or testing new equipment. The weightless conditions of space mean that astronauts can also perform experiments not possible on Earth.
Space Toilets
Astronauts outside the spacecrafts "go to the toilet" in their spacesuit, when the waste materials are collected. Inside the craft, they use a space toilet, making sure they are firmly strapped to the seat. The waste is sucked away by the toilet and collected in a secure unit.
Space Food
Meals on the space shuttle are prepared from 70 different foods and 20 drinks. The meal tray is strapped down and the food eaten with the hand or culery. Liquids are sucked from catons or tubes
Some More You Must Know
1) Once a satellite is in space it is left to work on its own. But ocassionaly one needs repairing. The cargo bay of the space shuttle is equipped with a robotic-arm, which especially trained astronauts use to recover satellite. They can repair the satellite and release it back into the orbit.
2) Astronauts have carried out many experiments in space. These include observing how living things such as bees are affected by weightlessness.
3) Humans are not the only space travellers, early ones included dogs, rats, and mice. Animals are no longer sent into spacealone but flies, frogs, and tadpoles ocassionaly accompany human astronauts.
More than 350 people have travelled into space; 26 on missions to the moon and the rest in orbit around the earth. For journeying into space, astronauts must be physically and mentally fit. They mt also be trained to prepare them for living and working in the hostile environment of space.
Living In Space
Daily life for an astronaut includes all the usual things, such as breathing, eating, sleeping and going to the bathroom. The big difference, however, is living in weightless conditions. Sleeping astronauts float around spacecraft unless tethered down and using toilet has to be carefully controlled.
Spacesuit
When astronauts work outside the spacecraft, they need to wear a suit that keeps their body at the correct temperature and protect them from fast-moving micro-meteoroids. The suit must also provide oxygen to breath because there is no air or atmospheric pressure in space.
Working In Space
Each member of a space crew has specified tasks. These may include flying the craft, releasing a satellite into orbit, or testing new equipment. The weightless conditions of space mean that astronauts can also perform experiments not possible on Earth.
Space Toilets
Astronauts outside the spacecrafts "go to the toilet" in their spacesuit, when the waste materials are collected. Inside the craft, they use a space toilet, making sure they are firmly strapped to the seat. The waste is sucked away by the toilet and collected in a secure unit.
Space Food
Meals on the space shuttle are prepared from 70 different foods and 20 drinks. The meal tray is strapped down and the food eaten with the hand or culery. Liquids are sucked from catons or tubes
Some More You Must Know
1) Once a satellite is in space it is left to work on its own. But ocassionaly one needs repairing. The cargo bay of the space shuttle is equipped with a robotic-arm, which especially trained astronauts use to recover satellite. They can repair the satellite and release it back into the orbit.
2) Astronauts have carried out many experiments in space. These include observing how living things such as bees are affected by weightlessness.
3) Humans are not the only space travellers, early ones included dogs, rats, and mice. Animals are no longer sent into spacealone but flies, frogs, and tadpoles ocassionaly accompany human astronauts.
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