K2-18b, also known as EPIC 201912552 b, is an exoplanet orbiting the red dwarf K2-18, located 124 light-years (38 pc) away from Earth. The planet is a sub-Neptune about 2.6 times the radius of Earth, with a 33-day orbit within the star's habitable zone; it receives approximately a similar amount of light as the Earth receives from the Sun.

Sep 11, 2023 · K2-18 b, an exoplanet 8.6 times as massive as Earth, orbits the cool dwarf star K2-18 in the habitable zone and lies 120 light-years from Earth. A new investigation with NASA’s James Webb Space Telescope into K2-18 b has revealed the presence of carbon-bearing molecules including methane and carbon dioxide.

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 discovery was announced in 2015.

Apr 17, 2025 · Earlier observations found methane and carbon dioxide in K2-18b’s atmosphere — the first instance of carbon-based molecules discovered in the atmosphere of an exoplanet in the habitable zone. K2-18b is about 2.6 times as large as Earth, and lies 124 light years away, in the constellation Leo.

Apr 17, 2025 · Scientists have found new but tentative evidence that a faraway world orbiting another star may be home to life. A Cambridge team studying the atmosphere of a planet called K2-18b has detected...

5 days ago · 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 contains dimethyl sulfide and dimethyl disulfide, gases that may be produced by life.

May 5, 2024 · In 2023, a research team from Cambridge University made a potentially groundbreaking announcement after analyzing data collected by the James Webb Space Telescope from the exoplanet K2-18b. Their analysis suggested the tentative detection of dimethyl sulfide (DMS), a gas that can be a potential biosignature.

The star has a transiting exoplanet, called K2-18b, a super-Earth located within the habitable zone of K2-18. [8] [9] It was discovered in 2015 by the Kepler space telescope in its K2 mission. [3]

Apr 17, 2025 · K2-18b has a mass 8.6 times that of Earth’s, and the planet is 2.6 times as large as Earth. Scientists have had their eye on this planet for a few years now. In 2023, ...

Apr 17, 2025 · Astronomers first discovered the exoplanet K2-18b in 2015, and soon established that it was a promising place to look for life. About eight times as massive as Earth and orbiting a star 124 light ...