Einstein’s theory of special relativity says that it is impossible to move faster than light in a vacuum. Things that don’t have mass have to move...
In 1846, Urbain Le Verrier, an astronomer and mathematician, set out to find a planet that no one had ever seen before. The Newtonian theory of...
For thousands of years, the nature of light has remained a mystery for philosophers and scientists. Sure, you can tell that there’s something there, because when...
Who among us hasn’t seriously considered that time travel could become a real possibility some day? I know I have. Alas, most common folk (and quite a...