Uranus Found Emitting Internal Heat, Reviving Hopes for Flagship NASA Mission
Uranus, the seventh planet from the Sun, is usually known as a frozen “ice giant.” But in July 2025 astronomers announced a big surprise: Uranus is actually emitting more heat than it receives from sunlight. Decades of data and new models show Uranus emits about 12% more internal heat than it gets from the Sun….