NASA’s James Webb Telescope maps 400-light-year-distant planet in 3D, revealing heat so extreme it breaks water apart
SMRTR summary
NASA's James Webb Space Telescope created the first 3D thermal map of an exoplanet by observing WASP-18b, located 400 light-years from Earth. Using infrared spectroscopy, scientists discovered the ultra-hot Jupiter's dayside reaches 2,760°C (5,000°F) — temperatures so extreme they break apart water molecules. This groundbreaking mapping technique will enable detailed atmospheric studies of other distant planets.
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