...as the tweens from 1970 (and their adult chaperones) explore an uninhabited alien city...
(Ahem) Perhaps they could use the same sort of material the flying saucer was fabricated from?
As this tale from Treasure Chest V14N14 (1959) demonstrates, even "men of science" can miss the obvious.
Hopefully, next Monday, the genius who designed the spaceship will figure it out!
Writer Frances Crandall followed the accepted concepts of space travel postulated by scientist Wener Von Braun and, illustrated by Chesley Bonestell in various books and magazines like Conquest of Space, and popularized in numerous 1950s movies like Destination Moon and Angry Red Planet!
Artist Fran Matera was also the art director/art editor for Treasure Chest, but is best known for his long run on the Steve Roper and Mike Nomad newspaper strip.