Earth & Environmental Sciences
Mars
54%
planet
52%
impactor
51%
planetary surface
47%
crater
33%
resetting
30%
energy
28%
energetics
21%
melt
17%
angular momentum
14%
ejecta
13%
half space
13%
solar system
12%
accretion
10%
curvature
10%
simulation
10%
cavity
10%
penetration
9%
probe
9%
hydrodynamics
9%
melting
8%
gravity
8%
erosion
8%
removal
6%
particle
5%
material
4%
distribution
4%
Physics & Astronomy
Mars (planet)
100%
impactors
22%
planetary surfaces
19%
craters
14%
mars
9%
impact velocity
9%
planetary structure
8%
planets
7%
energy
6%
orbital velocity
6%
escape velocity
5%
scars
5%
rims
4%
ejecta
4%
half spaces
4%
solar system
4%
low speed
4%
erosion
4%
bombardment
3%
angular momentum
3%
penetration
3%
melting
3%
simulation
3%
hydrodynamics
3%
curvature
3%
gravitation
3%
cavities
2%
probes
2%