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Becoming an Astronaut (pg. 2)

Astronauts - The Payload Commander

A Payload Commander is responsible for the coordination of any experiments that are carried out during a space mission. For example, over 80 experiments were performed during the 16-day, STS-107 Columbia mission. One study involved the growth of prostate cancer tissue, while another showed that carpenter ants don't seem to notice weightlessness. A Payload Commander is always a NASA astronaut.

Astronauts - The Payload Specialist

A Payload Specialist is someone other than a NASA astronaut, who is assigned to a space mission by either a corporation or another country to oversee and help with a certain mission experiment. Payload Specialists can come from universities, research centers, government agencies, businesses or other nations that use the space shuttle. Usually a Payload Specialist will work on one specific experiment, but if it looks like a crew has too much work to handle on their own, the Payload Specialist will often lend a hand.

Astronauts - The Mission Specialist

There are usually three Mission Specialists aboard a space shuttle. They must have knowledge of all the experiments taking place on board, unless a Payload Specialist is in charge of the experiment and will not require help with it. A Mission Specialist also must know about safety procedures, shuttle operations, crew activity planning and the usage of consumables (food) on board the shuttle. In order to become a Mission Specialist astronaut, you have to pass a NASA Class II space physical to make sure you are in top physical condition.

  • Click here to read more about the types of astronauts that NASA sends into space.
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Would You Like to Travel to Outer Space?

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iiDeadxInside
My friends told the teachers at school that I self harm.
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XxRuby_PhoenixxX
Thank you. I don't think it's puberty, though; there are reasons for this depression that I know of, but it won't be that simple to treat. One, my crush probably doesn't like me back, most definitely, my mom is screaming more often, and I have a lot of stress. 
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QueenAmazing37
QueenAmazing37 posted in Style:
Dulce Candy is my Favorite. Look her up... get the information needed.
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QueenAmazing37
Sure you may be going through something but see first how positive your life really is, then see the negative.
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QueenAmazing37
QueenAmazing37 posted in Friends:
If you are getting bullied say something and/or kill them with kindness. Of course, if they throw a punch,.. show em who's boss.
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