ᴊᴇʜ (ᴊ. ᴇ.) ʙʀᴜᴄᴇ, ꜱᴄɪꜰɪ & ꜰᴀɴᴛᴀꜱʏ ᴀᴜᴛʜᴏʀさんのイラストまとめ

Looks about right (except wouldn't it be "splash earth" rather than "flat Earth"?).

@nyrath Or maybe it was a case of static Klingons?

“Tramp Space Ship” aka "Space Family Stone" (Boys Life, September-December 1952), by Robert Heinlein, illustrations by Reynold Brown.

“Satellite Scout” aka "Farmer in the sky" (Boys Life, August-November 1950), a serial by Robert Heinlein, illustrations by Reynolds Brown

Russian map of Venus

Illustrations from "Rocketry Through the Ages" (1959). Cox, Donald William and Stoiko, Michael. Illustrated by Kocher, W.A. The format of this book is 1 page of text with 1 full page illustration. It covers the history of past, present and future rockets. 1/2

The work of Tom Colbie

Sketches for A Trip to the Moon, 1902. George Meliés.

Exploring Mars (1956). Written by Roy Gallant, and illustrated by Lowell Hess

The work of Alfred Kelsner (German, b. 1949 - )