******MARS-SIZED SPOILERS!****** I grew up admiring the gorgeous, inspirational space art by Chesley Bonestell (1888-1986), who remains one of my favorite artists. I love his imaginative paintings of future space exploration, with astronauts setting foot on the moon, Mars, and even the Saturnian moon of Titan. Growing up in the 1970s and early 1980s, those…