James Webb Telescope discovers nearby Earth-size planet
For the first time since the James Webb has been launched into space, researchers have confirmed the discovery of an exoplanet exactly the same size as Earth using the instrument.
According to the research team led by Kevin Stevenson and Jacob Lustig-Yaeger of the Johns Hopkins University Applied Physics Laboratory, LHS 475 b is a “small, rocky planet” estimated to be 99% of Earth’s diameter. The planet is relatively close, about 41 light years away and is only a few hundred degrees warmer than Earth.
“This rocky planet confirmation highlights the precision of the mission’s instruments,” Stevenson said. “And it is only the first of many discoveries that it will make.” Lustig-Yaeger agreed. “With this telescope, rocky exoplanets are the new frontier.”
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