Quiz 9.3 Costs and Hazards of Space Research and Exploration
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Which is the best example of an ethical issue concerning the use and responsibility for space? (Consider the options carefully, there is some potential overlap between ethical, political and environmental issues.)
Do we have the right to alter objects and materials in space to suit our own needs?
Who owns space and its potential resources?
Who will determine how space will be used?
Who should pay for space junk cleanup?
The Indian Space Research Organization launched Chandrayaan-1 in 2008 to map minerals and water on the Moon. Imagine that this spacecraft discovers a large and easily mined deposit of titanium there. Which potential concern is the best example of an environmental issue?
Titanium mining may create pollution
Titanium is a very valuable resource on Earth
India may claim the titanium deposit as its own
Titanium is used in many medical devices
This is astronaut Stephen Robinson riding the Canadarm2 (attached to the International Space Station) as he prepares to perform an in-flight repair on the Space Shuttle Discovery.
What is not a potential hazard that he faced during this space walk?
Weightlessness
Collision with space debris
Meteoroids
Solar radiation
This is what happens to long hair when you are in the International Space Station, as demonstrated by astronaut Marsha Ivins.
What is not a potential negative effect of long-term microgravity on the human body?
The heart must pump harder to circulate blood
Bones under reduced pressure lose minerals
Red blood cell production declines
Muscles weaken because they are not used as much
This is an artist's conception of what the first lunar outpost might look like.
What is a problem with setting up a permanent Moon base, to which there is no solution so far?
We don't know if there is water on the Moon and water is too heavy to launch from Earth
Special space suits will have to be made with protection from space radiation
Building materials will have to be made from minerals in lunar soil
People will need to exercise regularly in order to counter the effects of microgravity
What is one problem Mars space suit design will not have to overcome?
Extreme air pressure
Solar radiation
Bulkiness
Whipping sand and debris
What is not a characteristic of space debris that makes it such a serious problem?
The reflectivity of most debris
The high velocities of some debris
The huge number of individual bits of debris
The large range over which the debris occurs
Which of the following is an image of space debris?
Which is not a good pseudonym (alternative word or words) for microgravity?
Pressure-free
Weightlessness
Free fall
Zero-G
What is something that the Moon itself will likely be able to supply the first human inhabitants?