The study by Webb will be the 'most important' exoplanet probe for years to come as scientists look for life on other planets.
orbiting a dwarf star roughly 40 lightyears away from Earth that is considered to be the leading candidate for potentially habitable worlds—and maybe even life.
"The thing that I think is universally interesting to just about everybody is whether or not these planets have atmospheres," Domagal-Goldman said."It's critical for habitability. The moon gets just as much energy from the sun as the Earth does, but it doesn't hold on to its atmosphere and so it doesn't have any oceans and it doesn't have any global biosphere."
"So it's a first-order question to answer for the habitability of these worlds: whether or not they do have atmospheres. It turns out that's also the easiest thing that Webb can observe," Domagal-Goldman said. "If you want to look for the kinds of biosignatures that we have on Earth, which is to say oxygen and ozone from plants and algae, that's a great biosignature because if you see it, it's less likely to be produced by-non biological processes," Domagal-Goldman said.
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