Topic
Mission design
4 questions tagged Mission design — spanning every one of the seven Ws.
how
How do spacecraft use the Sun and planets to save fuel?
They use gravity assists, flying past a planet to steal a tiny bit of its orbital momentum. This can change speed and direction without burning much fuel.
AstronomyMission design
when
When was the first successful use of a gravity assist to explore outer planets achieved?
The first famous gravity-assist mission was Pioneer 10’s Jupiter flyby in 1973, which used Jupiter’s gravity to redirect the spacecraft outward.
Space ExplorationMission Design
when
When did the first successful use of a gravity assist to explore outer planets happen?
Voyager 1 used Jupiter’s gravity assist in 1979 to swing on toward Saturn, a landmark in outer-planet exploration.
SpaceMission design
how
How do scientists send a spacecraft to a specific planet at the right time?
They launch during a planetary alignment called a launch window, when the orbital paths make the trip efficient.
SpaceMission design