Berlin, 1914. Albert Einstein, a middle-aged man, is struggling to concentrate on his study. The nagging voices of his ten- and four-year-old children come through the closed door. Einstein's collar ...

Researchers Thursday announced they have proof of what Albert Einstein predicted more than 100 years ago – that “gravitational waves” exist in the universe, and as they ripple through galaxies they ...

Over 100 years ago, Albert Einstein grappled with the implications of his revolutionary special theory of relativity and came to a startling conclusion: mass and energy are one, related by the formula ...

One of Albert Einstein's greatest insights was realizing that time is relative. It speeds up or slows down depending on how fast one thing is moving relative to something else. How much does it change ...