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Jan 8, 2024

James Webb Space Telescope could look for ‘carbon-lite’ exoplanet atmospheres in search for alien life

Posted by in category: alien life

“The Holy Grail in exoplanet science is to look for habitable worlds and the presence of life, but all the features that have been talked about so far have been beyond the reach of the newest observatories,” Julien de Wit, discovery team member and an assistant professor of planetary sciences at MIT, said in a statement. “Now we have a way to find out if there’s liquid water on another planet. And it’s something we can get to in the next few years.”

Currently, scientists are very good at using instruments to determine how far a planet is from its host star and thus whether it is in that star’s “habitable zone” — defined as the region that’s neither too hot nor too cold to allow for the existence of liquid water.

In our own solar system, however, Earth, Mars and even Venus are all in the habitable zone around the sun. Yet, only one of those planets currently has the capability to support life as we know it. That means habitability and preserving liquid water for exoplanets isn’t all location, location, location. So, currently, scientists don’t have a robust way of confirming if a planet is habitable or not.

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