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Micrometeoroids in Saturn’s rings reveal that these dusty bands are no more than 400 million years old, making them significantly younger than the 4.5-billion-year-old gas giant.

United statesSean hsuAndrew poppeAllison gaspariniUniversity of californiaResearch newsUniversity of colorado boulderSpace science instituteDirt reveals ageSascha kempfColorado boulderSolar systemCosmic dust analyzerSanta cruz