In addition to carbon dioxide, water, and other molecules, described in a series of new scientific papers published online, researchers say the telescope has spotted signs of sulfur dioxide.
He notes that reactions started by light are an important part of planetary atmospheres. In the Earth's atmosphere, for example, sunlight produces ozone that blocks harmful radiation from reaching the planet's surface. But this kind of chemistry had never been unambiguously observed in the atmosphere of a planet outside our solar system before.
Scientists have detected thousands of planets orbiting far off stars, almost always indirectly, by staring at stars with telescopes to see how they're affected by the presence of orbiting planets. In most cases, researchers know nothing about the planets other than the worlds' approximate size and distance from the star.
So when NASA's new flagship telescope, the James Webb Space Telescope, launched in December, scientists were eager to peer at this planet to compare the view provided by their new instruments to what had previously been seen with Hubble.
France Dernières Nouvelles, France Actualités
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