1. Unit E – Space Exploration
Lesson 4-8 – Chapter 4 topics
4.1 - The Risks & Dangers of Space Exploration
4.2 - Canadian Contributions to Space Exploration & Observation
4.3 - Issues Related to Space Exploration

2. A. Accidents 1967 – fire broke out during training on Apollo 1, 3 died
1986 –
space shuttle Challenger exploded on lift off, 7 died
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3. space shuttle Columbia exploded on re-entry, 7 died
2003 –
space shuttle Columbia exploded on re-entry, 7 died
both Russians and Americans lost, losing
Mars probes
huge amounts of money and years of work
slide 2 of 5

4. B. Dangers of Space Travel
risk of
being hit by debris
risk of exposure to radiation in space
re-entry is very dangerous and must be perfect
too shallow an angle and the shuttle bounces off the atmosphere
too steep an angle and the shuttle burns up
slide 3 of 5

5. C. Space Junk
large and small debris can fall off spacecraft or be left behind
eg) dead satellites, paint
junk and micrometeoroids might be small but are traveling at enormous speeds (20,000 km/h) and can have disastrous effects on a space shuttle or satellite
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6. most space junk burns up if it re-enters Earth’s atmosphere
some old satellites can re-enter and the pieces fall to Earth posing a risk
slide 5 of 5

7. Canadian Contributions to Space Exploration & Observation
4.2
Canadian Contributions to Space Exploration & Observation

8. A. Technology
Canada developed and built robotic arms for the space shuttle
called Canadarm 1 and Canadarm 2
controlled by remote control
slide 1 of 3

9. Canadarm 2 has computer-controlled fingers
used to launch and retrieve satellites, fix the Hubble Space Telescope and put together modules of the International Space Station
Canadarm 2 has computer-controlled fingers
provided technology for the Mars Pathfinder mission
slide 2 of 3

10. B. Canadians in Space Marc Garneau – 1st Canadian in space in 1984
Roberta Bondar – 1st Canadian woman in space in 1992
Chris Hadfield – 1st Canadian to walk in space in 2001
slide 3 of 3

11. Issues Related to Space Exploration
4.3
Issues Related to Space Exploration

12. A. Should Space be Explored?
con – there are lots of issues on Earth that haven’t been resolved
eg) poverty, hunger, pollution, disease
pro – space may offer some solutions to our problems
slide 1 of 4

13. B. Resources in Space
there is a great demand for natural resources on Earth
resources in space may help us satisfy our energy needs
asteroids contain mineral resources
eg) Fe, Au, Pt
slide 2 of 4

14. moon could provide materials for fuel
obtaining construction materials for space exploration from space would dramatically reduce the price
moon could provide materials for fuel
maybe could colonize other areas of the solar system, like Mars
slide 3 of 4

15. C. Issues political issues refer to ownership, rights and laws
ethical issues refer to fairness, right vs wrong, determining the beneficial uses
environmental issues refer to protection and conservation of space and Earth
slide 4 of 4

16. Assignment
Worksheet 9