WGravity assist
WDynamical friction
WEinstein ring
WFrame-dragging
WGravitational lens
WGravitational lensing formalism
WGravitational microlensing
WGravitational redshift
WGravitational wave
WGravitational wave background
WGravitoelectromagnetism
WHigh-G training
WOrbital decay
WKelvin–Helmholtz mechanism
WMass segregation (astronomy)
WOrbital decay
WOrogeny
WSpaghettification