Human life expectancy has just about peaked, according to a study published Monday in the journal Nature Aging, and barring a transformative breakthrough in medical science, people will top out at a ...

A microscopic discovery in a California lake sparked buzz and controversy more than a decade ago when it was first revealed. Scientists said they'd discovered bacteria that used the element ...

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Intelligent life may develop on planets as a rule, not an exception — increasing the odds of humanity existing beyond Earth, according to a new study. Researchers from Penn State University proposed ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A team of ...

Astronomers have long sought signs of life beyond Earth, with exoplanets like K2-18 b — a world about 124 light-years away — offering tantalizing possibilities. In 2023 and again in April 2025, a team ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Trees depicted in ...

“Can you imagine eating toxic waste for breakfast?” Science magazine asked in a 2010 press release touting a newly discovered microbe controversially claimed to “live and grow entirely off arsenic.” ...

Humans are captivated by the idea of finding life elsewhere in the universe – and even more by the idea that life, if found, might resemble the complex, animal life here on Earth. One of the easiest ...