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 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. Below is a curated sample of some key albums and collections. It will study every phase in the history of our Universe, ranging from the first luminous glows after the Big Bang, to. Webb will be the premier observatory of the next decade, serving thousands of astronomers worldwide. The new James Webb Space Telescope has discovered its first planet orbiting another star - an exoplanet. About 2023 2022 1st Images Engineering Webb Science Images In Depth Webbs Build History and More: We have an extensive Flickr site archiving the Webb projects design, development, launch, commissioning and related outreach activities. The James Webb Space Telescope (sometimes called Webb or JWST) is a large infrared telescope with a 6.5-meter primary mirror. Illustration of exoplanet LHS 475 b and its star.
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