INIS
planets
100%
humans
23%
sun
19%
solar system
15%
stars
15%
size
11%
environment
11%
space
11%
tools
11%
orbits
11%
data
7%
distance
7%
inventions
7%
control
7%
economy
7%
zones
7%
venus planet
7%
jupiter planet
7%
mercury
7%
milky way
7%
pollution
3%
travel
3%
education
3%
communities
3%
fires
3%
people
3%
values
3%
efficiency
3%
internet
3%
wheels
3%
operation
3%
computers
3%
eyes
3%
food
3%
investigations
3%
telephones
3%
increasing
3%
resources
3%
psychology
3%
gravitation
3%
production
3%
reduction
3%
attitudes
3%
gases
3%
presses
3%
hydrology
3%
pluto planet
3%
asteroids
3%
neptune planet
3%
motion
3%
satellites
3%
uranus planet
3%
hurricanes
3%
probes
3%
saturn planet
3%
ice caps
3%
ethics
3%
productivity
3%
density
3%
moon
3%
fluorine 20
3%
mars planet
3%
seasons
3%
telescopes
3%
resolution
3%
exceptions
3%
barriers
3%
by-products
3%
volcanism
3%
hands
3%
tectonics
3%
Physics
Extrasolar Planet
100%
Planetary System
50%
Earth Environment
25%
Space Probes
25%
Technological Process
25%
Natural Satellite
25%
Flattening
25%
Trans-Neptunian Object
25%
Protoplanets
25%
Planetary Mass
25%
Keyphrases
In(III)
25%
Emissaries
25%