Larry Brown wrote:

To obtain a Merit Badge for Astronomy, a Scout must:

1. Describe the characteristics and differences of the celestial bodies
including the sun, moon, planets, comets, meteors, stars, nebulae, and
galaxies.
2. Show that he has a clear understanding of the structure of the
universe by describing: (a) the relative position of the earth in the
solar system; (b) the relation of the solar system to the Milky Way
Galaxy; (c) the relation of the galaxy to other systems in the Universe.

I wonder what the 1940 expected answer to part 1.(c) was?
What was known, what was speculated, what was discounted ...

CLIP