The crazy world of quantum mechanics can best be summed up by Niels Bohr’s famous quote: “For those who are not shocked when they first come across quantum theory, cannot possibly have understood it.” ...

Time is a fickle thing. Depending on your frame of reference, it can appear to pass slower or quicker, thanks to a wonky phenomenon known as time dilation that was described in Albert Einstein’s ...

Einstein's theory of relativity has all sorts of weird results that make it difficult to wrap your head around, but one of the weirdest is time dilation. Basically, according to relativity, if you ...

Every week, the readers of our space newsletter, The Airlock, send in their questions for space reporter Neel V. Patel to answer. This week: time dilation during space travel. I heard that time ...

Einstein is most famous for general relativity, which is really a theory of gravity. But his theory of special relativity has been just as important. Special relativity is all about how to interpret ...