Physics & Astronomy
chondrule
100%
solar nebula
77%
protoplanetary disks
64%
ice
47%
planets
42%
shock
41%
Kuiper belt
37%
Charon
33%
dust
32%
meteorites
30%
solar system
30%
extrasolar planets
29%
Pluto (planet)
26%
water
25%
gases
22%
cooling
22%
oceans
21%
star formation
18%
supernovae
18%
ambipolar diffusion
17%
ejecta
17%
crusts
17%
exobiology
16%
comets
16%
Earth mantle
16%
radioactive isotopes
16%
bows
15%
rocks
14%
inclusions
14%
calcium
14%
magma
13%
asteroids
13%
molecular clouds
13%
Jupiter (planet)
12%
lightning
12%
histories
12%
water vapor
11%
embryos
11%
natural satellites
11%
chondrites
11%
protoplanets
11%
stellar systems
11%
stars
11%
impactors
11%
atmospheres
11%
magnetic fields
11%
dwarf planets
11%
geochemistry
10%
liquids
10%
snow
10%
Earth & Environmental Sciences
chondrule
77%
solar system
51%
planet
49%
ice
39%
gas
32%
Pluto
30%
dust
30%
radionuclide
26%
cooling
24%
meteorite
19%
accretion
19%
comet
19%
calcium
18%
aluminum
18%
ejecta
18%
Moon
16%
thermal evolution
16%
magnetic field
15%
material
15%
liquid
13%
water
13%
ionization
13%
chondrite
13%
particle
12%
ocean
12%
atmosphere
12%
impactor
12%
asteroid
12%
Jupiter
12%
temperature
11%
radiation
11%
crust
10%
rate
10%
effect
10%
rock
10%
water vapor
10%
silicate
10%
stoichiometry
9%
beryllium isotope
9%
mantle
9%
embryo
9%
geochemistry
9%
hydrogen
9%
angular momentum
9%
annealing
9%
Mars
8%
oxygen isotope
8%
albedo
8%
history
8%
distribution
7%