MORE Laika Credit: NASA Laika, a mixed-breed dog, was the first living being in orbit. She was launched on the Soviet Union's Sputnik 2 mission in November 1957. Sam the Monkey Astronaut Credit: NASA A rhesus monkey named Sam is shown after his flight of Dec. 4, 1959, which tested the launch-escape system of NASA's Mercury spacecraft. Miss Sam the Monkey Readies for Flight Credit: NASA The rhesus monkey Miss Sam is placed in a container for a January 1960 flight that tested the launch-escape system of NASA's Mercury capsule. Ham the Space Chimp Credit: NASA Ham the chimpanzee after his successful suborbital spaceflight of Jan. 31, 1961. The Legacy of Space Chimps Credit: NASA The real-life Ham is led down the steps from a trailer. Enos the Chimp Before His Orbital Flight Credit: NASA Enos the chimpanzee being readied for his orbital spaceflight of Nov. 29, 1961. Iran's Space-Traveling Monkey Credit: NASA Iranian space officials announced Monday (Jan. 28, 2013) that they have successfully launched a live monkey into space. Iran's Space-Traveling Monkey #2 Credit: NASA Iranian space officials announced Monday (Jan. 28, 2013) that they have successfully launched a live monkey into space. More Image Galleries Image of the Day Amazing Mars Photos by NASA's Curiosity Rover (Latest Images) Grace Potter Makes NASA KSC Pit Stop During 'Midnight' Tour | Gallery 1 Star, 3 Exoplanets: The Potentially Habitable TRAPPIST-1 System in Images Best Night Sky Events of May 2016 (Stargazing Maps) SpaceX's Red Dragon: A Private Mars Mission Plan in Pictures More from Space.com WATCH LIVE @ 1 am ET: SpaceX to Launch JCSAT-14 Satellite, Land Rocket @ 1:21 am ET NASA Facility Dedicated to Mathematician Katherine Johnson National Astronaut Day Launches with New 'Signature' Space Pens Image of the Day SpaceX Will Launch Japanese Satellite, Try Rocket Landing Early Friday: Watch Live White House Report Endorses FAA Oversight of Commercial Space Missions Blast Off! How to See a Rocket Launch In-Person This Summer Will SpaceX Get People to Mars Before NASA?