Radio pulses are being picked up from the orbit of Jupiter, could it be intelligent life? You can label Voyagers as a first contact novel. Ex-astronaut Keith Stoner who worked on the orbiting Big Eye telescope is hired on a a consultant at a radio astronomy facility. Before he can publish his findings he is whisked into protective custody by the military. Meanwhile in Russia, radio astronomers there have also discovered the signals and are also keeping a lid on the findings.
Voyagers has the struggle between Stoner and MacDermott. Stoner wanting to make contact, physical contact if possible and MacDermott, the head of the project, wanting to keep everything tidy, get just enough study and information to get academic acclaim, but with both feet still planted firmly on Earth. There is the intrigue of what the Russians are planning.
The book picked up steam as it went along, or maybe I just didn't have enough time to read until this weekend. The story ends, but at the same time is open ended.