Cats sometimes catch and leave a "gift" for their humans. But why do cats give us dead mice, birds or other prey?

Researchers bombarded these hybrid lifeforms with a year's worth of Martian radiation in just 5 hours — and they survived, ...

Venus will be at its brightest in the morning sky — just 67 days after it was at its brightest in the evening sky. Here's why ...

The most advanced fighter jets in the world are known as "fifth generation". They contain technologies developed in the first ...

The James Webb Space Telescope has pointed its infrared optics at the 'Crystal Ball Nebula' NGC 1514, a planetary nebula ...

But why is yawning contagious? Brain cells called mirror neurons may play a role in contagious yawning, Dr. Charles Sweet, a ...

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 ...

Cooking is an essential part of human culture, but people haven't always written down recipes the way we do now.