Is time travel possible?

It’s not only possible – humans are doing it all the time! Of course, we’re all moving forward in the time right now (at a rate of one second for every second). And according to laws of physics that are far too complicated to explain here, time slows down as a person speeds up. This effect – known as time dilation – is really noticeable only as you approach the speed of light. Astronauts aboard the International Space Station orbit the Earth at about 18,000 mph (29,000 kph), which is just a tiny fraction of light speed, but they’re still moving fast enough to experience time dilation on a measurable scale. Once they return home a six-month assignment, astronauts are actually .007 seconds behind in time compared with their friends and family on Earth.


Picture Credit : Google