In this video, we explore Albert Einstein's theory of general relativity, focusing on his insights into gravity and ...

The accelerating expansion of the universe could be explained by modifying general relativity so that gravity has mass – or so thinks a small group of physicists. Matthew Francis reports What lies ...

Pete Wilda, a Fairbanks reader of this column, wanted to know how the snow here can bend off railings and loop from power lines without breaking. He grew up in eastern Wisconsin and doesn’t remember ...