20
technology
× 5 |
3
airships
|
2
technological-development
|
0
hard-science
|
11
satellites
|
3
macroengineering
|
1
psychology
|
0
spaceships
|
6
science-based
× 5 |
3
physics
|
1
reality-check
|
0
space-travel
|
5
science-fiction
× 2 |
2
energy
× 2 |
1
teleportation
|
0
sunlight
|
4
planets
× 3 |
2
aliens
|
1
military
|
-1
electricity
|
3
space
× 2 |
2
mathematics
|
0
magic
|
-1
mars
|
3
biology
× 2 |
2
health
|
0
law-enforcement
|
|
3
geology
× 2 |
2
humans
|
0
earth
|
|
3
aircraft
|
2
interstellar-travel
|
0
faster-than-light
|