Topic 4.0: Society And The Environment Are Affected By Space Exploration Flashcards

1
Q

Dangers when launching a spacecraft

A

Risks that could occur when being trapped in a small cockpit above lots of highly explosive fuel
Poor weather conditions, malfunctioning equipment and even the presence of birds can interfere with launching rockets

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2
Q

Dangers once launched into space

A

Floating debris, meteoroids and harmful doses of radiation must be faced
Outside of earths atmosphere the effects of solar and cosmic radiation are magnified because there is no protection
They can burn the electronic circuits in a satellite and tue can also kill cells in vital organs and damages the bone marrow in humans. Polyethylene shielding can absorb the radiation

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3
Q

Dangers of the entry into earths atmosphere

A

The path of the spacecrafts re-entry into earths atmosphere must be perfect
If it is too shallow of an angle the craft will bounce off the atmosphere and back into space
If it is too steep of an angle the craft can move to quickly through the atmosphere and burn up

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4
Q

Space junk

A

Refers to all the pieces of debris that have fallen off of rockets, satellites, space shuttles and space stations and Eemian floating in space
The debris includes bits as small as flecks of paint or a bolt and large items such as dead satellites.
If the space garbage is just above the outer reaches of earths atmosphere, it can stay in orbit for thousands of years

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5
Q

The hazards on earth

Space junk

A

Some space junk posed a risk to earth as well
There is a possibility that prices of satellites can make their way to earths surface
They can shower radioactive debris when returning into earths atmosphere
The re-entry does not tend to take the lives of people, but the clean up takes a long time and costs a lot of money

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6
Q

The hazards in space (space junk)

A

Most of it will burn up if it passes through earths atmosphere, but until it does, it will remain a very real threat to anyone or anything travelling in space
The debris can bombard the hull of a spacecraft and cause catastrophic damage! They are known as micrometeorites and they also can damage other space tech
The affects of the smallest piece of debris can be devastating because of its very fast speed

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7
Q

Canadarm

A

It is a rebotic arm that was debuted in 1981 on a U.S space shuttle. It is proven to be one of the most versatile pieces of tech ever designed for the space shuttle program
It is manipulated by reintegration control and has launched/retrieved satellites, helped fix optical apparatus on the Hubble Space telescope and put together modules of the International space station

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8
Q

Alouette 1

A

Canada in 1962 and the country became among the first nations in the world to use a satellite for non-military purposes.

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9
Q

Annick 1

A

Launched in 1972 in Florida by Canada

That satellite gave the whole country telecommunications coverage for the first time.

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10
Q

Canadarm 2

A

The arm can bend around corners and grasp objects with its computer controlled fingers, it can also move itself around the outside of the international space station, crawling and making every part of the space station accessible

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11
Q

First Canadian in space

A

Marc Garneau, who participated in the space shuttle mission in 1984

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12
Q

Canada provided tech for the Mars Pathfinder mission…

A

It was a Canadian designed map that the Sojourner rover rolls down in 1997

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13
Q

First Canadian to walk in space

A

Chris Hadfield walked in space when he helped deliver Canadarm 2 to the international space station in 2001

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14
Q

First Canadian female astronaut

A

Roberta Bondar, she flew on a shuttle mission in 1992

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15
Q

Potential value of spaces resources (Asteroids/sun energy)

A

The energy needs on earth would be satisfied for a long time
Scientists are looking for ways of capturing solar energy in space and beaming it to earth. Space has a lot of mineral resources, such as the astroid belt that has much rocky chunks floating in space. Asteroids have been found to contain iron, as well as gold and platinum group metals that can be worth lots of money and be good mineral sources

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16
Q

Potential value of spaces resources (cost)

A

The cost of space travel could be cut substantially. It cost a lot of money to transport fuel and materials from earth into space. If materials for the construction of space vehicles, supplies and feel can be found where they are to be located in space, cost would be reduced.

17
Q

Potential value of spaces resources (moon)

A

Our moon also provides resources such as hydrogen and oxygen that could be processed from its rock. The hydrogen could then be used as fuel for a lunar bases and space travel. The oxygen could be used for life support and you could combine the chew for an available supply of water.

18
Q

Examples of political, ethical and environmental issues with space (questions)

A

Political: who owns space?Who will determine how space will be used?
Ethical: is it right to spend money on space exploration rather then on solving problems on earth? How can we ensure that space resources will be good for humans? Do we have the right to alter materials in space for our needs?
Environmental: who is responsible for protecting space environments from alteration? who is responsible for cleaning up space junk and who should we pay for doing it?

19
Q

Earth and its moon: what are the characteristics of earth and what planet is most like it’s moon?

A

It is the only planet where what exists in 3 phases, it is appropriate distance form the sun to support life, the atmosphere protects us from cosmic rays and radiation, 70% of its surface is water and it is one of the few that have active volcanism
Mercury is the planet that is most close to the moon… They both have no atmosphere, therefor there is no protection from meteoroids, asteroids and comets