By Paul Herrick

The Sept. 2015 issue of Astronomy magazine has this on page 13.
"Scientists announced that alien moons---larger than Mars, orbiting planets as large as
Jupiter---might make the best targets when hunting for extraterrestrial life."

The Urantia Book (copyright 1955) says this:
Not all planets are suited to harbor mortal life. Small ones having a high rate
of axial revolution are wholly unsuited for life habitats. In several of the physical
systems of Satania the planets revolving around the central sun are too large for
habitation, their great mass occasioning oppressive gravity. Many of these
enormous spheres have satellites, sometimes a half dozen or more, and these
moons are often in size very near that of Urantia, so that they are almost ideal for