"My battery is low and it’s getting dark" - part of a tweet from journalist Jacob Margolis reporting from NASA, explaining the last received diagnostic messages from the Mars Rover, later (incorrectly, but poetically) interpreted as the literal text of the final message.
(See: https://www.researchgate.net/publication/357155193_My_battery_is_low_and_it%27s_getting_dark_The_Opportunity_rover%27s_collective_persona )