The Planet That Burns and Freezes at the Same Time: COROT-7b

Somewhere about 520 light-years from Earth, a rocky planet is doing something that sounds impossible: raining rocks while one side burns at thousands of degrees and the other remains frozen in permanent darkness. 🌌 This is COROT-7b, one of the most extreme rocky worlds ever discovered. Locked incredibly close to its star, COROT-7b completes an orbit in just 20 hours and 29 minutes. Its dayside may reach around 4,700°F (2,582°C), hot enough for rock to vaporize into the atmosphere. As that vapor moves toward the cooler regions, minerals can condense and fall back toward the surface as mineral rain. On the opposite side, temperatures may fall to around -270°F (-168°C), creating a world of almost unimaginable contrasts. 🔥❄️ But COROT-7b may be even stranger than its surface suggests. Scientists have proposed that it could be the stripped-down remnant of a much larger planet, leaving behind an exposed rocky interior after hundreds of millions of years of atmospheric and mass loss. And the way we discovered it is almost as remarkable as the planet itself. COROT-7b is roughly 520 light-years away, yet astronomers detected it because its star dimmed by only about 0.03% when the planet passed in front of it. Later measurements using the HARPS spectrograph helped reveal its mass and density, providing the evidence needed to classify it as a rocky world. In this episode, Snoozy Space explores the science behind this extraordinary planet: its lava ocean, frozen nightside, mineral atmosphere, possible rock rain, tidal locking, extreme orbit, mysterious history, and the possibility that COROT-7b represents the exposed remains of a world that was once much larger. 🌙 So settle in, lower the lights, and take a quiet journey to one of the strangest planets we have ever found. If you enjoy calm, science-driven journeys through the universe, consider liking the video and subscribing to Snoozy Space. It helps us continue making these deep-space documentaries for curious minds. Become a supporter of this podcast: https://www.spreaker.com/podcast/snoozy-space--7447041/support . This episode includes AI-generated content.