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Kepler 452b and Several Exoplanets Are Similar to Earth, but There's Not an Exact Twin

What planet is most like Earth? Reseachers have identified several exoplanets similar to our planet, but none that are an ...
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NASA’s Webb Identifies Methane In an Exoplanet’s Atmosphere

The measured transit spectrum (top) and eclipse spectrum (bottom) of WASP-80 b from NIRCam’s slitless spectroscopy mode on NASA’s James Webb Space Telescope. In both spectra, there is clear evidence ...