The Moon

The Moon is the closest celestial object to Earth

When bringing a cargo module to the moon, you can get a Landing Booster (more commonly known as a thruster)

As of writing, The Moon has the lowest gravity of all the planets, in fact its gravity is so low larger craft will have to thrust against earth's gravity just to stay on the moon!

Trivia:

 * In real life, The Moon is 384,400 kilometers (238,855 miles) from Earth.