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Space travel - Coggle Diagram
Space travel
Spirit of exploration
Romantic notions of discovery
Necessity to colonize other planets
Zero resources + climate change
= Earth life unsustainable
Colonizing Mars: Obstacles
b. Propulsion
B. Propulsion – reliable, safe, fast
Ion-propulsion engine
Charged gas/heated by nuclear reactor/fired from craft
high speeds
-slow to accelerate
nuclear thermal propulsion
Propellant/heated by nuclear reactor/basis from craft
craft gets moving
-heavy/nuclear disaster?
plasma propulsion
40 days to Mars
Magnets + gas = acceleration
-in development
c. Water, fuel, air, and food
C. Water, fuel, air, food
14 mos RT + 18 mos on = 3 years
Problem: min. weight v. needed cargo
a. Spacecraft design
A. Spacecraft design
Winged craft ( shuttle) – NO
– Martian atmosphere too thin
Unreliable
capsule
strong & safe (esp. 1st/last 100 mi.)
capsule – like vehicle in dev`t
Alternatives
Alternative: Manufacture on Mars
Water: detect & purify water -> drinking/bathing
Fuel: hydrogen & oxygen (water) -> propel ship
Air: oxygen: breathable atmosphere
Food: + sunlight
Agenda:
Dangerous (ex. Space Shuttle; Int`l Space Station)
Desire alive and well (ex. China, Japan, Europe)
Obstacles: political & bureaucratic & technical