After Hours

NASA Images: More desktop wallpaper from the space program

Ham Launch 1961

Mercury-Redstone 2 (MR-2) Launch with chimpanzee Ham aboard. Monkeys had been flown into space before, but Ham was the first higher primate to test a spacecraft.

Credit: NASA


Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to,, and TechRepublic.