Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than previously thought — and may be a big reason that our planet harbors life. When you ...

Bengaluru: Aerospace engineering professor Duvvuri Subrahmanyam was waiting for Indian-origin NASA astronaut Sunita Williams and her colleague Butch Wilmore to finally splash down back to Earth. The ...

A meteorite that tore through the sky in June shaking the Southeast with a sonic boom is now believed to be 4.56 billion years old, according to researchers who studied it following its crash landing.

At a field outside Kozani, northern Greece, the strikingly blue-and-purple petals of saffron give off an intoxicating scent that underscores the value of one of the country's most lucrative crops. But ...