No, because there is no such ting as a planet with zero gravity.
The mass of the planet creates a force=mg on the probe and f=ma occurs and the probe is accelerated by this force, thus changing its path.
As space probe is carried into space using rockets and afterward can maneuver using thrusters, sometimes gaining speed using the gravity of a planet. Once a space probe has been set on the right trajectory it does not have to do much; there is no air resistance to slow it down and gravity from the sun and planets is already taken into account.
Voyager II is the first successful space probe that reached the outer planets or Jovian Planets. It is in the rule of probes that they should not reach the outer planets because it is too far and their probes might malfunction. But this Voyager II probe had a successful flight to the outer planets.
That was "Voyager 2".
A space probe is not the same as a satellite, because they can orbit planets and sat elites don't.
yes
mars and venus
By the gravity pull
A pH probe is a device used to measure the acidity of a solution.
space probe
NASA has launched the Kepler mission to search for new planets.
For the design of the probe an understanding of gravity is not required. However, to get the probe into space and into a stable orbit round a chosen body an understanding of gravity is required. Thus it is the launch vehicle design where an understanding of gravity is needed.