These are the starting books in the 6 book "First Interest in Space series."
While light on manned spacecraft content there are a number of nice space related illustrations.
Edelman, Jeffrey. Illustrated by Evans, Christopher. Sun and Moon. London: Ginn & Company, Ltd. (16 p.) 22 cm. Softcover. Color drawings. Basic school series. “First Interest in Space #1 series.” 1970
Edelman, Jeffrey. Illustrated by Evans, Christopher. The Planets. London: Ginn & Company, Ltd. (16 p.) 22 cm. Softcover. Color drawings. Basic school series. “First Interest in Space #2.” 1969
Edelman, Jeffrey. Illustrated by Evans, Christopher. The Stars. London: Ginn & Company, Ltd. (16 p.) 22 cm. Softcover. Color drawings. Basic school series. “First Interest in Space #3.” 1969
I like this illustration of the many kinds of suns.
Illustrations of an alien planet in another solar system. Kind of mind-blowing for a kid in elementary school.