All Stories: Theory

A consortium of astronomers confirmed a prediction of Albert Einstein's theory of general relativity by observing the gravitational effects of a supermassive black hole on a star zipping by it.

PARIS: Being overweight or obese does pose a risk of heart disease, despite claims to the contrary, a study of nearly 300,000 British adults...

CAPE CANAVERAL, Fla: Astronomers have found a new application for Albert Einstein's century-old theory of relativity - using it to directly measure the size of...

Reality is not as obvious and simple as we like to think. Some of the things that people accepted as true at face value...

Civil disobedience is one of the many ways people have rebelled against what they deem to be unfair laws. It has been used in many nonviolent resistance movements in India (Gandhi's campaigns for independence from the British Empire), in Czechoslovakia's Velvet Revolution and in East Germany to oust their communist governments.