Addendum 1
Recall:
[2021-02-23] There's a secret code in the Mars rover's parachute
NASA scientists teased the code's existence; the Internet solved it w/i 6 hrs
https://www.livescience.com/nasa-perseverance-rover-parachute-secret-code.html
* flashed a secret code of red-and-white stripes: "Dare mighty things."
Mars Decoder Ring
https://mars.nasa.gov/resources/25646/mars-decoder-ring
The Parachute Message
https://github.com/tanyafish/parachute
