September 03 2011Happy Birthday Eileen Brennan-79 Valerie Perrine-68 Holt McCallany-48 Adam Curry-47 Charlie Sheen-46 Nick Wechsler-33 ; 1976, the unmanned U.S. spacecraft Viking 2 landed on Mars to take the first close-up, color photographs of the planet’s surface.Share this:FacebookXRelated