i hae not read this,was my husband's book. amazon says:
Buzz Aldrin, one of manned space flight's pioneers, has helped create a stunning, possibly prophetic novel of the future of space exploration. A radio beacon from an unknown world leads an astronaut to disaster on the Moon -- and his son far beyond that as he searches for the key to the mystery of Tiber, a civilization who left artifacts in the solar system some 9,000 years ago, with sufficient impact on human affairs to explain some odd references in the Bible. The villains of the book are not the aliens, but the benighted politicians with the minds of accountants who won't fund the necessary scientific derring-do to save the world -- apparently an affliction which alien astronauts also have to bear.