Adventure on Mars: Fun with NASA (Paperback or Softback)

Fourteen-year-old Wyatt is having a difficult time dealing with the death of his mother. He often visits the spot where he and his mother would star gaze and dream of what it's like on Mars. Before she died, he told her he intended on traveling to Mars someday.
Meanwhile, Herman is a teenage Martian who watches the NASA channel on the teletube and dreams of visiting Earth. One night, he and his friends take a joyride in a spaceship and ends up on Earth, where they accidentally zap Wyatt aboard before flying back home to Mars.
Wyatt and Herman quickly become friends—and both like to explore and take chances. They have fun with NASA by visiting the Cydonia region and placing objects in the path of the Rover, which sends photos back to NASA on Earth. Then they watch the earthlings on the NASA channel try to figure out how each object got there.
The real fun begins, though, when they get their hands on a teleporter—a time machine. While those on Earth search for Wyatt, he and his new best friend enjoy an Adventure on Mars.