Assertion: dawn spacecraft | /r/CapableOf | use the gravity of mars
Facets:
value: in 2009
type: TEMPORAL
value: to change direction
type: PURPOSE
value: to change velocity
type: PURPOSE
Source sentences:
text: The NASA Dawn spacecraft used the gravity of Mars in 2009 to change direction and velocity on its way to Vesta, and tested out Dawn's cameras and other instruments on Mars.