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MCC Answers: STS-111

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1. In-Kyung Lee, of Austin, Texas, asks the question:

How do scientists conduct controlled experiments in space? What do scientists hope to learn about life in space?
ANSWER

2. Elaine, of Savannah, Ga., asks the question:
When I see the space station pass over my city as a bright light, what is the light that I see? Is it reflected light from light panels?
ANSWER
3. Angel Oliveira, of Madrid, Spain, asks the question:
How does the shuttle, Solid Rocket Boosters and External Tank do the roll, pitch and yaw maneuver after launch, and which aerosurfaces make it possible?
ANSWER
4. Richard White II, of Reading, Pa., asks the question:
Gene Kranz's book, "Failure is not an Option", mentions that during the Gemini/Apollo era of MCC, each flight controller picked a color to identify his (or her) team by. Gene's color was white. Is this still common practice? Is there a complete list of all the colors that are in use or retired, and by whom? Are retired colors reused, such as white? Thanks!
ANSWER
5. Duane Takahashi, of Los Altos, Calif., asks the question:

Why are there built-in holds during a countdown? Does it give the ground crew time to repair or recalibrate the system?
ANSWER

6. Edwin Proctor, of McFarland, Wis., asks the question:
On launch, I hear the calls "Press to MECO." I understand MECO is Main Engine Cut Off. I have looked in the file and can not find "PRESS." What does "PRESS" (PRS, PRSS or whatever) stand for? Thanks.
ANSWER
7. Bob Baggs, of Ottawa, Ontario, asks the question:

How come at certain times of the orbit there is a communications blackout or LOS?
ANSWER

8. Ron Rogers, of Kansas City, asks the question:
There are three orbit-boost procedures planned for this mission - why not do them all at once, in one big boost?
ANSWER
9. Nicole, of Santa Barbara, Calif., asks the question:
How long does it take for the space station to circle the Earth?
ANSWER
10. Terry Callaghan, of Geelong, Australia, asks the question:
I was wondering how well sealed the payload bay is? And how the air inside is released as the shuttle heads into space, and how it refills during de-orbit?
ANSWER
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Curator: Kim Dismukes | Responsible NASA Official: John Ira Petty | Updated: 10/01/2002
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