Scientists Have Uncovered When Jupiter Was Born, Solving a Longstanding Mystery

Ancient droplets found in meteorites reveal the history of planet formation. About 4.5 billion years ago, Jupiter expanded quickly into the giant planet we see today. Its immense gravity disturbed the paths of countless rocky and icy objects, known as planetesimals, which resembled present-day asteroids and comets. These disturbances led to violent collisions so energetic [...]


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