Physics & Astronomy
hydrological cycle
97%
mars
63%
water
30%
regolith
25%
salts
24%
moisture content
14%
frost
12%
brines
12%
liquids
11%
hydrates
10%
saturation
9%
in situ resource utilization
8%
habitability
6%
atmospheres
6%
environmental monitoring
6%
scavenging
5%
mixing ratios
5%
craters
5%
Medicine & Life Sciences
Water Cycle
100%
Mars
80%
Water
35%
Salts
19%
brine
11%
Atmosphere
8%
Temperature
7%
Spacecraft
5%
Environmental Monitoring
5%
Chemical Compounds
Surface
17%
Hydrate
12%
Purity
10%
Hygroscopy
8%
Nonequilibrium
7%
Crystalline Texture
6%
Humidity
6%
Evaporation
5%
Mixture
5%
Engineering & Materials Science
Water
29%
Salts
21%
Liquids
12%
Brines
9%
Experiments
5%