Time Dilation (theory)

Time dilation is a concept from Einstein's theory of relativity, where time is experienced differently depending on relative motion or gravity. When an object moves very fast, close to the speed of light, or is in a strong gravitational field, time for that object slows down compared to an observer in a different frame. For example, astronauts traveling near light speed would age more slowly than people on Earth. This effect has been experimentally confirmed and explains phenomena like GPS satellite timing adjustments. Essentially, the faster or more strongly gravity affects an object, the slower time passes for it relative to others.