The oldest still working satellite in space wasn’t even designed or operated by NASA, USAF, ESA or any other space agency, but was designed and built by Radio Amateurs. Launched in November 1974, it died in 1980 due to a battery failure. Then, it suddenly came alive in 2002 and has been working ever since.

This month marks it’s 50th anniversary. For more on this amazing SmallSat, visit https://www.amsat.org/amsat-ao-7-a-fifty-year-anniversary/