US EditionA Spectroscopist’s View of the Evolving Story of Exoplanet K2-18 B
5 Articles
5 Articles
A spectroscopist’s view of the evolving story of exoplanet K2-18 b
K2-18 b is the only habitable-zone exoplanet with a detectable atmosphere — initially associated with water vapour, now accepted as being due to methane. Recent observations suggest possible biomarkers. This Comment assesses these shifting conclusions.
Effect Of Galactic Chemical Evolution On Exoplanet Properties - Astrobiology
We couple a simplified model for the galactic chemical evolution, with software that models the condensation of dust in protoplanetary disks and software that models the interior structure of planets in order to estimate the effects that the galactic chemical evolution has on the properties of planets as they form over time. We find that […] The post Effect Of Galactic Chemical Evolution On Exoplanet Properties appeared first on Astrobiology.
The detection of planets on other stars is now routine. Now astronomers can even analyze their atmospheres – and perhaps soon discover traces of life. by RÜDIGER VAAS The title of a press release sent out by the renowned Cambridge University in April 2025 was as spectacular as it was misleading: "Strengthest evidence of biological activities outside of the solar system [...] The article Is there life on K2-18b? first published on wissenschaft.de.
Chemical Signals Associated with Life Are Discovered in Exoplanet Thanks to the James Webb Telescope
The discovery of a molecule produced only by living organisms arouses interest in the scientific community. Scientists at the University of Cambridge detected a chemical signal in the atmosphere of exoplanet K2-18b, 120 light years from Earth. This signal could be linked to the presence of life. Using NASA’s James Webb Space Telescope (JWST), they detected the presence of dimethyl sulfide (DMS), a compound that, on our planet, is produced only b…
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