How NASA’s Mariner 9 probe encoded images

· John Cook · Aug. 14, 2026, 12:17 a.m.
Summary
This blog post discusses how NASA's Mariner 9 probe encoded images of Mars for transmission back to Earth, utilizing a Hadamard code to prevent corruption during the process. It outlines the technical aspects of the error-correcting code employed and its significance in successful data transmission.
AUTHOR
Sponsored
Zulip logo Zulip
Organized team chat for people who take work seriously. Topic-based threading keeps conversations focused.
Try Zulip
Become a sponsor →