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Becoming an Astronaut (pg. 2)

Different astronauts have different tasks during a space shuttle mission.
Walking On The Moon

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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JennyD

JennyD wrote:

x cool p
commented: Mon Sep 23, 2013

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"Holley12" wrote: "Charulata" wrote: My mom think that I'm too desperate because I tell my uncle that he's look like a dinosaur so he feel insulted and he left our home...my mom tell me " don't be over desperate ''...What do you think ? m desperate  or not? I don't really think the word would be desperate. In the situation with your uncle, I think you we're maybe being a tad bit rude. I think you're mom may have been addressing a different situation if she claimed you were being desperate. Unless, of course, you have something against your uncle and really wanted him to leave, I'm going to assume your not desperate. Holley's right though. It was a little inconsiderate to tell him those things. Maybe an apology would be nice. As for what your mom was saying, she most liking referring to a different situation or misusing the word -it can happen when your frustrated.  Hope this clears things up a bit (:
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I hate my school uniform! It's black and made of really thick material and the tie makes your neck all sweaty cos it's a dark red and ugh. You're not allowed coats either, not even in winter so it sucks when it's raining. 
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ours is annoying :/ Black and red stripe tie, black shoes, blazer jumper or cardigan, black trousers of skirt,white shirt not as bad as some of the ones ive seen but i find it annoying to put so much stuff on in the morning
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