These amazing NASA posters are hoping to recruit astronauts to travel to Mars

NASA needs people who want to go to Mars.

And although the agency already received over 18,000 applicationsfor its most recent class of astronauts, it's still recruiting for what is, frankly, a dream job.

On Tuesday, NASA released eight posters in a retro-propaganda style highlighting different roles that would be needed on the journey, such as farmers, surveyors, and teachers.

The funky and cool posters were originally designed for an exhibit at the Kennedy Space Center in 2009. But as part of NASA's recent publicity push for its Mars mission, it's made them available for download for free.

"Mars needs YOU! 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," exclaims the website.

Currently, NASA is hoping to be able to send humans to Mars in the 2030s. But it's got competition: Elon Musk, the founder of SpaceX and electric-car maker Tesla, hopes to send humans to the red planet by 2026.

You can see all of the posters below, or if you'd like to print one up for your office, school, or home, NASA is also making huge TIF files available from its site.

Check them out:

"Hike the solar system's largest canyon, Valles Marineris on Mars."

"If you lived on Mars' moon Phobos, you'd have an office with a view, mining for resources with Mars in the night sky."

"New ways of growing fresh food will be needed to keep brave explorers alive."

"Just what lies beyond the next valley, canyon, crater, or hill is something we want to discover with rovers and with humans one day too."

"No matter where we live, we can always learn something new, especially with teacher-heroes who guide us on our path, daring us to dream and grow!"

"Whether repairing an antenna in the extreme environment of Mars, or setting up an outpost on the moon Phobos, having the skills and desire to dare mighty things is all you need."

"Dare to forge our future with space-age tools — build spaceships to carry us to Mars and back, and habitats to protect us while we're there."

"We need many things for our Journey To Mars, but one key piece is YOU!"