Is Earth's inner core solid or liquid? While the inner core is extremely hot, experts have known that it is solid for many ...

The lush, tropical regions of Central and South America have long dazzled scientists with their plant diversity. These ...

Tensions between religion and science erupted in a hot and humid courtroom in Dayton, Tenn., 100 years ago this month.

This stunning image dubbed 'Cosmic Owl' captures a remarkable moment in deep space, billions of light years away.

Ancient humans in Africa changed their behaviour in a major way 70,000 years ago, which could explain how their descendants ...