micro
Explanation
This single-panel comic shows a NASA scientist presenting findings from Mars. The screen behind them displays microscopic particles, and the scientist announces: "Microplastics. Microplastics everywhere." The caption reads: "The first certain sign of life on Mars was bittersweet."
The joke operates on the intersection of two contemporary anxieties: the search for extraterrestrial life and the microplastics pollution crisis. Scientists have long hoped that finding life on Mars would be one of humanity's greatest discoveries. The comic imagines that when we finally find definitive proof of life on Mars, it turns out to be microplastics -- which are technically a sign of life because only a civilization could produce them, but it means that either (a) humans have already contaminated Mars with our pollution before we even properly arrived, or (b) another civilization existed and also ruined their planet with plastic. Either way, the discovery is "bittersweet" because it confirms life exists but also confirms that plastic pollution is inescapable, even on another planet. The comic satirizes both humanity's pollution problem and the anticlimax of a grand scientific discovery turning out to be depressing.