The only difference is it measures a few hundred degrees hotter than our temperate world.
NASA’s James Webb Space Telescope has discovered its first exoplanet — and researchers are remarking at how similar the celestial object is to Earth. LHS 475 b sits 41 light-years away from us in the constellation Octans. Details on the planet’s composition and atmosphere are still murky, but it’s a small, rocky planet, like ours, and is roughly 99% the same diameter as Earth.
But that seems to no longer be the case, with the $10 billion JWST capturing LHS 475 b with ease and precision via a near-infrared spectograph. “These first observational results from an Earth-sized, rocky planet open the door to many future possibilities for studying rocky planet atmospheres with Webb,” said NASA’s Astrophysics Division director Mark Clampin.
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