NASA has launched a playful series of Mars recruitment posters aimed at enticing people to explore the Red Planet.
The retro posters resemble those used by the U.S. government to recruit people into the military during World War I and are available to download from NASA's website.
"Mars needs YOU!" the website touts. "In the future, Mars will need all kinds of explorers, farmers, surveyors, teachers . . . but most of all YOU! Join us on the Journey to Mars as we explore with robots and send humans there one day."
The posters encourage people with a variety of interests to explore the planet to grow gardens, work the night shift on one of the planet's moons, and hike the solar system's largest canyon, Valles Marineris.