Time Machine 6: The Rings of Saturn

I loved these books and having one set in the future, kind of the Time Machine series' version of a science fiction adventure, was a great thrill for me. I only took a point away because of some of the science and terms the author used, such as dilithium crystal radiation, made the book feel less realistic then it could have been. The plot is this : radio signals have been detected from the rings of Saturn. Due to the pattern, scientists believe the signals will soon halt and resume in the year 2085. Your mission is to go into the future and find the source of the broadcast. You could be the first Earthling to meet an alien civilization. On the way you will visit many planets and meet many people of the future. Your decisions will change the future and decide if mankind makes contact with an alien life-form.