Intriguing idea but alas not too likely given the empirical evidence from astronomy. A greater chance is that ETI is hiding in the asteroid belt, a suggestion made years ago by the astronomer Michael Papagiannis (see http://www.setileague.org/editor/papagian.htm). My own take on ETI and the "galactic club": http://www.astrobio.net/alien-life/seti-redux-joining-the-galactic-club/ On Sun, Feb 12, 2017 at 12:23 AM, Maggie Zhou < [log in to unmask]> wrote: > I came across a 1986 book written by an aeronautical engineer Norman > Bergrun (it's free online at the link below). The main claim is that > analysis of photos from Voyager 1 and 2 reveal the existence of spacecrafts > of unimaginably huge size, that actually makes the rings of Saturn! > > Last year, he was in the news again, which is what prompted me to look at > his book. > https://sputniknews.com/news/201608201044470859-nasa- > scientist-bergrun-aliens-ufo/ > > I looked at the pictures he showed in the book as proof of his claims, > most of them don't convince me of what he claims, but I'm curious about 4 > of the pictures - *I would very much appreciate if an astronomer can > weigh in and explain what is the mainstream explanation for the anomalies > in Plates 5 - 8, on (paper) pages 17, 19, 21 and 22 of the book at the link > below*: > http://podcast.sjrdesign.net/files/070_RingmakersOfSaturn.pdf > > In chapter 1 he also talked about the many inconsistencies and mysteries > from 4 centuries of instrumental observations of Saturn, and how his theory > can explain them satisfactorily. I wonder if mainstream astronomy has > better explanations for all these historical mysteries? > > (The author's bio is on page VII, or pdf file page 8) > > Thanks, > Maggie > > ---------------------------------------- > Maggie Zhou, PhD > https://www.facebook.com/maggie.zhou.543 > Twitter: @mzhou_us <https://twitter.com/maggie_zhou> > [log in to unmask] > +41 61 535 0508 <+41%2061%20535%2005%2008> (Switzerland, landline) > Skype: mzhou_us >