Andromeda

Time-traveling eighth-dimensional Andromedans visit Earth.

They share advanced science with a Mexican professor, a physicist. They share details of their interaction with a devastating nuclear explosion involving two countries on Earth. The physicist is later committed to a mental institution and then disappears forever. His journals also disappear. 

Now the Andromedans who originally contacted the professor speak through super channel Robert Shapiro and again give instructions that will allow trained scientists to construct a shield around existing Earth planes so that Earth astronauts can fly to Mars or to the stars. The Andromedans also tell what really happened on their journeys and on Earth, and they clear up questions one would have after reading the English or Spanish version of the previous book — the text of which follows the channeling in this book. In addition, they supply a lively account of their lives on their home planet in the Andromedan constellation of our galaxy. 

The eight-foot-tall, highly mental crew members of the ship who speak include the following: Leia, the beautiful cultural specialist and social diplomat; the cultural liaison G-dansa; Leia's daughter, equivalent to an eight-year-old ET, Eloise Duszan; the junior scientist Onzo; the senior scientist and crew leader; and the youngest — yet genetically modified to be the most brilliant of the crew — Playmate, a two-foot-tall roly-poly Andromedan who teaches communion of heart and mind.