It’s that time of the year again, when NASA gives you the opportunity to “ship” your name to another celestial body. This time, the destination is Mars, and the shipping service is NASA’s future Mars 2020 rover, which will be headed to the Red Planet in — you guessed it — 2020.

The rover’s primary mission is to get us closer to answering that fundamental question: did Mars ever host alien life? The robot is equipped with tools and instruments that will help scientists figure out if the planet may have hosted life in the past. On top of that, the rover will also be drilling and collecting samples of Martian dirt. It’ll then leave those samples on the ground, where they could potentially be picked up someday by another spacecraft and brought back to Earth.

And while the Mars 2020 rover is doing all of this, your name could be along for the ride. If you send in your name sometime before September 30th, NASA engineers at the Jet Propulsion Laboratory will etch it onto a silicon chip with an electron beam, and then the rover will carry it on its journey. The names are going to be pretty teeny, though — about one-thousandth the width of a human hair. That’s small enough so that more than a million names can be included on a single chip as big as a dime — but big enough for any Martian microbes to read (only kidding... Martians can’t read).

NASA has provided this opportunity for members of the public before, when it landed the InSight lander on Mars in 2018 or when it sent the OSIRIS-REx spacecraft to the asteroid Bennu. And just like any seasoned traveler, you’ll get a boarding pass and “frequent flyer” miles. Seeing as how the InSight travelers got about 300 million miles from their trip, the Mars 2020 folks are poised to get some serious points, too. Unfortunately, it seems doubtful Delta airlines will accept them.