Assertion: spacecraft's mission | /r/CapableOf | demonstrate the use of solar pressure
Facets:
value: as a method of attitude control
type: PURPOSE
value: in order to conserve attitude-control propellant
type: PURPOSE
Source sentences:
text: Both the Mariner 10 mission, which flew by the planets Mercury and Venus, and the MESSENGER mission to Mercury demonstrated the use of solar pressure as a method of attitude control in order to conserve attitude-control propellant.