Sometimes I have a hard time predicting which retro sci-fi images will rise to the surface.

This 1976 cover by D. A. Daily for The Gryb, by A. E. van Vogt, for instance: It’s a great image, but doesn’t stand out to me as that much greater than half the stuff I post.

But I found it in my tour through my Tumblr’s most popular images, so there was something…