Exoplanets - NASA Science
An exoplanet is any planet beyond our solar system. Most of them orbit other stars, but some free-floating exoplanets, called rogue planets, are untethered to any star. We’ve confirmed more than 5,600 exoplanets out of the billions that we believe exist.
Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b
2023年9月11日 · A new investigation with NASA’s James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of carbon-bearing molecules including methane and carbon dioxide.
NASA’s Webb Confirms Its First Exoplanet
2023年1月11日 · Researchers confirmed an exoplanet, a planet that orbits another star, using NASA’s James Webb Space Telescope for the first time. Formally classified as LHS 475 b, the planet is almost exactly the same size as our own, clocking in at 99% of Earth’s diameter.
NASA’s Webb Reveals an Exoplanet Atmosphere as Never Seen …
2022年11月22日 · The atmospheric composition of the hot gas giant exoplanet WASP-39 b has been revealed by NASA’s James Webb Space Telescope. This graphic shows four transmission spectra from three of Webb’s instruments operated in four instrument modes.
exoplanet
Last update: Nov. 25, 2024 currently 7353 planets. After a major update over the last month, we have now reached 7,000 confirmed objects in our database. Our database is currently the most complete in the world. Today is a day of celebration as we have reached over 6000 validated planets in our database (and counting) !!!!
JWST reveals first evidence of an exoplanet’s surprising ... - Nature
2022年11月22日 · The James Webb Space Telescope (JWST) has produced the most detailed information ever on an exoplanet, making it the world we know most about after the eight major planets of our Solar System.
Discovery Alert: A Flood of New Planets, Plus Hint of an ‘Exomoon’
2022年4月13日 · The Discovery: An international team of astronomers confirms 60 new exoplanets, or planets orbiting other stars; a separate study finds tentative evidence of an “exomoon.”
2023 Exoplanet Archive News - California Institute of Technology
2023 Exoplanet Archive News. Sign up for Exoplanet Archive email updates. For the current news, see the Exoplanet Archive News page. For other news archives by year, see the 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, and 2011-12 archives.. For a compilation of periodic tips that have appeared in past news items, see the Tip Archive.. To view only the most recently added ...
NASA Exoplanet Archive
2024年11月4日 · This week's update includes a new planet, a new transmission spectrum, and more measured obliquities for exploring exoplanet formation and migration history. Learn more! Two New Planets and New Spectra for a Possible Lava World
Webb Telescope offers first glimpse of an exoplanet's interior
2024年5月20日 · Last year the Webb telescope spotted sulfur dioxide about 700 light-years away in a different exoplanet called WASP-39, providing the first evidence of an atmospheric compound created by...