Far from being an icy enigma, Uranus is now known to radiate some of its own heat, hinting at a more dynamic history than once thought. Warm-hearted giants: Jupiter, Saturn, and Neptune all give off more energy than they receive from the Sun, showing that their interiors are still surprisingly warm. A chilly surprise: When […]



Summary

Uranus, once considered an icy, passive planet, emits its own heat, suggesting a more active past. This contrasts with Jupiter, Saturn, and Neptune, which radiate significantly more energy than they absorb from the Sun, indicating warm interiors. The excerpt sets the stage for a comparison, potentially highlighting a surprising difference in Uranus’s thermal behavior compared to these other gas giants, despite the initial impression of it being a cold, static world. The missing information likely contrasts Uranus’s heat emission with these other planets.

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