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%
night
4%
sinks
4%
humidity
4%
metal surfaces
4%
stations
4%
spacecraft
4%
temperature
3%
textures
3%
evaporation
3%
thermodynamics
3%
kinetics
2%
air
2%
estimates
2%
interactions
1%
simulation
1%
Medicine & Life Sciences
Water Cycle
100%
Mars
80%
Water
35%
Salts
19%
brine
11%
Atmosphere
8%
Temperature
7%
Spacecraft
5%
Environmental Monitoring
5%
Thermodynamics
4%
Humidity
4%
Cold Temperature
3%
Metals
3%
Air
2%
Kinetics
2%
Engineering & Materials Science
Water
29%
Salts
21%
Liquids
12%
Water content
12%
Brines
9%
Hydrates
8%
Experiments
5%
Scavenging
5%
Temperature
4%
Interchanges
4%
Evaporation
3%
Atmospheric humidity
3%
Spacecraft
3%
Thermodynamics
3%
Earth (planet)
3%
Textures
3%
Metals
2%
Monitoring
2%
Air
2%
Chemical Compounds
Triple Point
19%
Surface
17%
Hydrate
12%
Purity
10%
Hygroscopy
8%
Nonequilibrium
7%
Crystalline Texture
6%
Humidity
6%
Evaporation
5%
Mixture
5%
Simulation
4%
Thermodynamics
4%
Volume
3%
Environment
3%
Liquid
3%
Reduction
3%
Metal
3%
Application
2%