University of Oxford Department of Physics| University of Oxford Department of Physics
Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they remain cautious.| University of Cambridge
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The sub-Neptune frontier has opened a new window into the rich diversity of planetary environments beyond the solar system. The possibility of hycean worlds, with planet-wide oceans and H$_2$-rich atmospheres, significantly expands and accelerates the search for habitable environments elsewhere. Recent JWST transmission spectroscopy of the candidate hycean world K2-18 b in the near-infrared led to the first detections of carbon-bearing molecules CH$_4$ and CO$_2$ in its atmosphere, with a com...| arXiv.org