A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in ...

Neanderthals repeatedly returned to the cave to store horned animal skulls, revealing this cultural tradition was transmitted over time.

In a striking display of agility and grace, a humanoid robot named "Adam-U Ultra" has danced its way through a complex, highly energetic routine without faltering, slipping or missing a beat.

On the night of Feb. 2, skywatchers in eastern North America can see the moon occult Regulus — a rare event visible to the ...

An 11th-century monk saw the famous "Halley's comet" first as a child and later as an adult, new research finds. Halley's comet bears the name of the astronomer who famously first described its ...

The James Webb Space Telescope has confirmed the most distant, early galaxy in the known universe. The new contender, MoM-z14, is visible just 280 million years after the Big Bang.

The ongoing measles outbreak in South Carolina has reached a staggering 789 cases, making it the largest outbreak of the disease since the U.S. eliminated measles in 2000.

New footage shows one of NASA's WB-57 research jets spewing out flames and smoke as it skids across a runway during an ...