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Once they are on their way, coming home will not be easy or quick – the astronauts are now committed to their long journey around the Moon and back. <\/p>\n
During this time, the crew will continue to evaluate the spacecraft systems, but the astronauts themselves will also be evaluated and monitored. <\/p>\n
It is an opportunity to use the crew as guinea pigs – experiments on board will reveal how their bodies are affected this far out in space. <\/p>\n
Radiation is a key concern, as the Sun can hurl out damaging, high-energy particles. <\/p>\n
The astronauts will carry a device called a dosimeter to see how much radiation they are exposed to. They will also practise using their radiation shelter, which is under the floor of the spacecraft. <\/p>\n
The crew need to know how to get into it quickly if a solar storm is detected. <\/p>\n
Another practice session to help prepare for the unexpected will involve the astronauts climbing into their bright orange spacesuits, called the Orion Crew Survival System (OCSS). <\/p>\n
These suits are worn to protect the crew during launch and re-entry, and also act as vital protection if there is a problem with the capsule. <\/p>\n
The suit is like a mini-wearable spacecraft, pressurised with inbuilt life-support systems.<\/p>\n<\/p><\/div>\n