K2-18 - Wikipedia
K2-18, also known as EPIC 201912552, is a red dwarf star with two planetary companions located 124 light-years (38 parsecs) [4] from Earth, in the constellation of Leo. Its name is because it …
K2-18 b - NASA Science
Mar 28, 2025 · K2-18 b is a super Earth exoplanet that orbits a M-type star. Its mass is 8.92 Earths, it takes 32.9 days to complete one orbit of its star, and is 0.1429 AU from its star. Its …
Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b
Sep 11, 2023 · 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 …
NASA says exoplanet named K2-18 b could harbor life: What we …
Sep 12, 2023 · NASA 's James Webb Space Telescope has uncovered evidence of a possible ocean world larger than Earth with conditions that have the potential to support life. The …
Did Webb find signs of life on exoplanet K2-18 b? - EarthSky
May 2, 2024 · NASA’s James Webb Space Telescope has found that its deep hydrogen atmosphere contains methane and carbon dioxide. The findings mean that K2-18 b might have …
K2-18b | Life, Distance, Temperature, & Facts | Britannica
May 8, 2025 · K2-18b, an exoplanet 8.6 times as massive as Earth, orbits the red cool dwarf star K2-18 in the habitable zone and lies 124 light-years from Earth. The planet's atmosphere …
A Visit to Watery Super-Earth Alien Planet K2-18 b Would Be …
Sep 12, 2019 · Two research teams just announced the detection of water vapor in the air of K2-18 b, a "super-Earth" that lies about 110 light-years from our planet. This is a landmark …
K2-18 | NASA Exoplanet Archive
Characterization of the K2-18 multi-planetary system with HARPS. A habitable zone super-Earth and discovery of a second, warm super-Earth on a non-coplanar orbit Cloutier et al. 2017 …
K2-18 b could have dimethyl sulfide in its air. But is it a sign of life?
Apr 17, 2025 · Scientists have reported new observations from NASA’s James Webb Space Telescope (JWST) that strengthen the case that the exoplanet K2-18 b has molecules in its …
Exoplanet K2-18 b (Illustration) - Webb
Sep 11, 2023 · This illustration shows what exoplanet K2-18 b could look like based on science data. K2-18 b, an exoplanet 8.6 times as massive as Earth, orbits the cool dwarf star K2-18 in …