EarthSky reported
Astrobiology is the study of life in our universe. The only life we currently know of resides on Earth. So scientists look at exoplanets – worlds around other stars – that might have similar conditions as Earth and, thus, be conducive to life. Many of the exoplanets we’ve discovered orbit stars with radiation stronger than that of our sun. But researchers at the Desert Research Institute (DRI) in Reno, Nevada, said on June 24, 2025, that stronger radiation might not be as much as a limiting factor as previously thought. The researchers found a desert lichen on Earth that can survive the punishing radiation formerly considered lethal.
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