Alzheimer’s disease is commonly thought of as an older person’s illness. But new research from Columbia University and the ...

"Given everything we know about this planet, a Hycean world with an ocean that is teeming with life is the scenario that best ...

Astronomers have made a detection suggesting biosignatures, or signs of biological activity, on an exoplanet located 124 light-years away. But experts are skeptical.

K2-18b — which is eight times the size of Earth and 124 light-years away — shows signs of the unique molecule dimethyl sulfide, according to a new study published in the Astrophysical Journal ...

Scientists urged caution against raising hopes about the existence of actual living organisms beyond Earth, but said they ...

So the study team looked again ... wrote on the social media site BlueSky yesterday (April 16). Detecting signs of alien life is a tricky business, and confirming them is even tougher ...

or signs of past or present life linked to biological activity, on an exoplanet named K2-18b. But the study authors, and other experts, remain cautious and have not declared a definitive discovery ...