Recherche par tag: « K2 »

Madhusudhan et al. just reported ~3 sigma detection of dimethyl sulfide (DMS) or dimethyl disulfide (DMDS) in the atmosphere of K2-18 b in the Astrophysical Journal Letters. The claim is intriguing, as these gases can be associated with biological activity. On the other hand, the signal is modest, ambiguous, and potentially explainable as the result of noise or systematic error. Moreover, abiotic sources for these compounds do exist, and even if they are low-yield and short-lived, they cannot y…

Insights from NASA scientists reveal why even with James Webb the quest to find alien life remains challenging and elusive.

The exoplanet K2-18b might host a water ocean.

The so-called Hycean planet K2–18 b is around twice the size of Earth and orbits in the habitable zone of a star located 120 light-years from our solar system.

Astronomers discovered two mini-Neptunes and a third potential exoplanet in the final data sent home by NASA's Kepler space telescope just before it was decommissioned in late 2018.