In 2013, NASA’s Mars Curiosity rover hummed Happy Birthday to itself by vibrating its sample-analysis unit to the musical tune, but did so only on its first “birthday”. – WTF Fun Facts
Source: https://www.theatlantic.com/science/archive/2017/08/why-the-curiosity-rover-stopped-singing-happy-birthday-to-itself/536487/
WTF Fun Fact – Curiosity’s Happy Birthday
