![]() The planet completes an orbit in just two days. Webb also revealed the planet is a few hundred degrees warmer than Earth, so if clouds are spotted, it may mean the planet is more like Venus - which has a carbon dioxide atmosphere and is constantly shrouded in thick clouds.Īlthough LHS 475 b is closer to its star than any planet in our solar system, the red dwarf star is less than half the temperature of the Sun, so the researchers project it still could have an atmosphere. The team did, on the other hand, rule out the planet having a thick methane-dominated atmosphere, like Saturn's moon Titan. Research co-leader Jacob Lustig-Yaeger, from Johns Hopkins University Applied Physics Laboratory, said a pure carbon dioxide would be incredibly compact and challenging to detect. The public release of Webb’s first images and spectra is July 12 now less than two weeks away The Webb team has confirmed that that 15 out of 17 instrument modes are ready for science, with just two more still to go. The rocky planet, LHS 475 b, measures 99 percent of Earth's diameter and is 41 light-years away, in the Octans constellation.īut it is not yet clear if the planet has an atmosphere at all, let alone one like Earth, and researchers also could not rule out one made of purely carbon dioxide. The James Webb Space Telescope is unpacked and lifted vertically in a cleanroom at Guiana Space Center in French Guiana, on October 15, 2021. The new James Webb Space Telescope has discovered its first planet orbiting another star - an exoplanet. ![]() NASA, ESA, CSA, STScI NASA released the first batch of images and data captured by. ![]() Illustration of exoplanet LHS 475 b and its star. Jul 12, 2022, 8:39 AM PDT The star-forming region NGC 3324 in the Carina Nebula, captured in infrared by JWST.
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