Another hypothesis is that contagious yawning evolved to keep groups in sync. Yawns follow a natural circadian rhythm and ...

Why matter dominates over antimatter in our universe has long been a major cosmic mystery to physicists. A new finding by the ...

A three-part documentary on penguins' hidden lives will reveal a number of never-before-seen moments. Here's what executive ...

NASA's Curiosity Rover has discovered long carbon chains on Mars. On Earth, molecules like these are overwhelmingly produced ...

A new stretchable hydrogel battery can withstand extreme conditions and still operate effectively, scientists say.

The plains viscacha looks a lot like a chinchilla, but it's known for building vast tunnels underground and for producing ...