ESA/Hubble|M. Kornmesser/Cover I
This artistâ€™s impression shows the planet K2-18b, itâ€™s host star and an accompanying planet in this system. K2-18b is now the only super-Earth exoplanet known to host both water and temperatures that could support life. UCL researchers used archive data from 2016 and 2017 captured by the NASA/ESA Hubble Space Telescope and developed open-source algorithms to analyse the starlight filtered through K2-18bâ€™s atmosphere. The results revealed the molecular signature of water vapour, also indicating the presence of hydrogen and helium in the planetâ€™s atmosphere.
When: 11 Sep 2019
Credit: ESA/Hubble, M. Kornmesser/Cover Images
**Editorial use only**/COVER36986629/ESA/Hubble|M. Kornmesser/Cover I/SIPA/1909121214