Happy Earth Day

Featuring: Earths

Okay, I was going to do something on Michael Whelan, but then I remembered it’s Earth Day. Like I said, I try to do something themed on holidays, and Earth Day is actually a great fit for retro sci-fi. Here’s a roundup to prove it.

The first one’s from Dutch-Italian illustrator Karel Thole. He’s a great illustrator with a lot of art under his belt, and I…