Dr Alex Krause
Dr Alex Krause Writing in The Conversation, Dr Alex Krause (UCL Earth Science) and Benjamin J. W. Mills at University of Leeds explain how using the James Webb Space Telescope to look for oxygen in the universe could help scientists discover evidence of extra-terrestrial life. Are we alone in the universe? This is a question that has intrigued humans for centuries and inspired countless studies and works of fiction. But are we getting closer to finding this out? Now that the James Webb Space Telescope (JWST) is in operation, we might have taken one giant leap in being able to answer this one day. One of the four main objectives of the JWST is to study exoplanets - planets which reside outside of our solar system - and determine what gases their atmospheres are composed of. Now our new research into the variation of oxygen on Earth over geological time has offered clues about what to actually look for. To try and comprehend how, when and why life might evolve on other planets, it makes sense to look to the only planet we currently know of which hosts life: Earth.
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