A new egg-eater snake species from Ethiopia's Harenna Forest looks just like a common relative - except it's lost the ability ...

A new stress-sensing contact lens measures serotonin in tears, offering a potential way to monitor changes in body chemistry ...

A 40-year study reveals a surprising connection between body weight during adolescence and biological aging decades later.

Eating more whole grains could improve cholesterol and blood pressure. But how much should you eat to see the greatest benefits?

Three decades of supernova observations are adding to hints that dark energy may be changing over cosmic time.

NASA scientists found that Earth's center of mass wanders only about half as far each year as previously thought — and ...

People exposed to less sugar during the first 1,000 days of life had lower rates of anxiety diagnosis decades later.

Astronomers found a Neptune-sized planet orbiting backwards around its star, but the usual explanation for its bizarre path is nowhere to be found.

Building fairness into climate models could reshape who cuts emissions, who pays, and how countries reach the same global climate goals.

Brown dwarf weather on SIMP 0136 comes down to temperature and cloud height, in three recurring states that rotate in and out of view.

A new study finds that Madagascar's singing lemurs use a vocal technique similar to human singers, offering new insight into ...

Black-browed albatrosses can adapt to a warming ocean, but a new model shows cutting emissions does far more to keep the colony alive.