A common theme in science-fiction media, time travel is captivating. It’s defined by the late philosopher David Lewis in his essay “The Paradoxes of Time Travel” as “[involving] a discrepancy between ...

Time is the most common noun in the English language... but what is time? Source: Guy P. Harrison Looking for some psychological stimulation to exercise your mind and spice up your day? Try devoting ...

It’s not just in your head — time can actually flip. Physicists in New York have pulled off what sounds like a page ripped from a sci-fi script: They’ve confirmed that “time mirrors,” a trippy ...

From powering a cleaner planet to unlocking the mysteries of space, three visionaries at Monday's TIME100 Talks in London explored a crucial challenge: how to transform promising breakthroughs in ...