Saturn

Link.

"Be Alert!"

1962 Cuban propaganda poster

Link.

Horsehead Nebula in infrared

Link.

This Godless Communism

This Godless Communism was a propaganda comic book.  It "was an American comics feature that appeared in Treasure Chest, a biweekly, subscription-only comic book distributed in parochial schools from 1946 to 1972."

Worth a chuckle at the least.

Link.
JPG Link
PDF Link
CBR Link (Comic Book RAR file--good for readers)

Chinese Propaganda Poster

Chinese propaganda poster

Link.

Sowing Death

Anti-Nazi US World War 2 propaganda poster

"Kick Their Axis"

WW2 Propaganda poster

Link.