A NASA-led reanalysis of JWST data from exoplanet K2-18 b, incorporating multiple independent analyses, found no conclusive evidence of dimethyl sulfide (DMS), a potential biosignature, despite a ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. In the late 1800s Italian astronomer Giovanni Schiaparelli pointed a telescope at Mars ...

A tiny amoeba has broken a pretty big record. The newly discovered species of single-celled organism can divide and reproduce at a piping hot 63 degrees Celsius (145 degrees Fahrenheit), higher than ...

Sometimes, the things we can do for our happiness are small and easy: getting a little sun, saying thank you, lending a hand. Other times, they take a little more practice and work. That’s the case ...