The Mars 2020 rover has a launch window of July 17 – August 5, 2010. You need to submit your name by September 30, 2019 at 11:59 p.m. ET in order to be included on a tiny microchip that will be attached to the rover.
After you submit your name, you will get an official souvenir boarding pass, suitable for framing or sharing on your website/social media.
Here is what a boarding pass looks like:
All names will be etched on a silicon waver or microchip. NASA uses an electronic beam machine that can etch microscopic letters as small as 1 micron (less than width of a human hair).
Please note all names are subject to review. If you pass the reviewers, your name will officially land on Mars on February 18, 2021!