44
mars
× 2 |
9
waste
× 2 |
8
space-dust
|
0
impact
|
44
magnetic-field
|
9
debris
× 2 |
8
asteroid-belt
|
0
orbital-mechanics
|
44
terraforming
|
8
radiation
× 2 |
5
the-moon
|
0
dragon
|
15
interstellar-travel
|
8
shielding
× 2 |
5
dust
|
0
spacex
|
15
propulsion
|
8
asteroid
|
5
planetary-science
|
0
communication
|
10
materials
|
8
spacesuits
|
2
colonization
× 4 |
0
plants
|
10
construction
|
8
protection
|
2
planet
|
0
sustainability
|
10
outgassing
|
8
eva
|
0
safety
× 2 |
0
crewed-spaceflight
|
9
iss
× 3 |
8
solar-system
|
0
rockets
|
0
health
|
9
gravity
× 2 |
8
meteorites
|
0
food
|