Physics & Astronomy
mars
100%
economy
53%
robotics
50%
water
48%
mass drivers
41%
resources
31%
space exploration
28%
robots
26%
moon
25%
energy
21%
escape
20%
in situ resource utilization
19%
attitude control
15%
escape velocity
15%
regolith
14%
renewable energy
14%
turbogenerators
13%
radiation protection
12%
automation
12%
sustaining
12%
hydrates
12%
propulsion
11%
concentrators
11%
energy sources
11%
caps
11%
electrodynamics
10%
printing
10%
ice
10%
deposits
9%
trajectories
8%
gravitation
7%
Earth & Environmental Sciences
Mars
78%
robotics
48%
energy
36%
economy
33%
water
25%
Moon
20%
resource
17%
transport cost
14%
thermal power
13%
radiation protection
13%
electrodynamics
13%
protection system
13%
ice cap
12%
resource utilization
12%
renewable energy source
12%
process water
12%
regolith
11%
food production
11%
automation
10%
material
8%
raw material
8%
trajectory
8%
infrastructure
7%
fold
7%
gravity
7%
in situ
6%
world
6%
need
5%
Engineering & Materials Science
Water
45%
Robotics
32%
Moon
24%
Rail guns
15%
Radiation protection
14%
Sols
14%
Electrodynamics
13%
Robots
13%
Hydrates
11%
Attitude control
11%
Ice
10%
3D printers
10%
Deposits
10%
Hot Temperature
10%
Raw materials
9%
Propulsion
9%
Gravitation
9%
Earth (planet)
8%
Renewable energy resources
8%
Automation
8%
Trajectories
7%
Costs
4%