the M A R or Mariner Aerospace Rocketship was built america, this craft can go all the way to the further planets and so on.

lore:

The rocket ship was built in United States of america in 1980's as the space war between USSR and USA was on going. The rocketship was designed to visit planets as they added the boosters it started to look like more a sputnik the USSR's rocket design, the rocketship had a docking point which could serve a transport of the fuel on the sudden situations in space if the rocketship will stuck near the planet without a fuel serve, the solar panels was equipped to the rocketship as the energy spot, because of the rocket uses a lot of electricity it has to be by 4 panels on the last 2 stages. The rocketship was done and it was preparing to fly on mars as the first who had to do it was
Alaia Horne and Grynn Garret, they were the first people on mars, which served a victory for the United states. These people returned home safely as they were found in the baltic sea after 4 hours after the landing.

mariner flight or which planets it can serve

Further planets and their moons, near planets like cylero or sergea or what you installed, also if with moons so yes, gas giants.