Meet CoRoT-21 b, a sizzling hot world discovered in 2012 by the CoRoT space telescope using the transit method, which cleverly spots planets by watching their host stars dim just a bit as the planets pass in front. This fiery gas giant orbits extremely close to its star, CoRoT-21, making it a scorcher that’s far from any cozy vacation spot. Imagine a planet so near its blazing star that its days are hotter than any summer on Earth and its nights likely a bit more bearable but still steamy. CoRoT-21 b is a wild rollercoaster of extreme temperatures and fierce stellar radiation, a cosmic reminder that not all planets are quite so Earth-friendly—but they’re all fascinating in their own way!
