Baby Planet

NASA

Newfound ‘Baby’ Planet Smashes Record for Youngest Known World

Astronomers have confirmed a world that’s less than a million years old as the youngest known planet, using data from NASA-funded archives. Called Elias 2-24 b, the baby planet is still whirling in its natal disk of dust and gas. “Our planet-formation models already struggled to explain the previous record holders for the youngest known planet — a four-way tie…