NASA's Perseverance rover touched down in Jezero Crater on Mars after a landing sequence engineers nicknamed "seven minutes of terror" — the time it took to go from atmospheric entry to a safe landing, with a radio delay so long that by the time mission control on Earth even knew the descent had started, the rover had already either landed or crashed. It carried a small helicopter, Ingenuity, that would go on to make the first powered flight on another planet weeks later. The first images back showed a dusty, rock-strewn plain that within minutes had people online zooming in on every pixel.
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