In 2010, physicist Stephen Hawking wrote an article for the British newspaper The Daily Mail which explains the possibility to travel through time. We will only need a particle accelerator large enough to bring humans closer to accelerating particles, he says.

People who are accelerated with a capable accelerator like the Large Hadron Collider will speed it up to a speed close to the speed of light.

Because of the effect of special relativity, the time period experienced by people outside the machine will last only a few days for an accelerated person. By the time they get off the LHC trip, they will be younger than all of us. There is nothing we can offer to build the machine. But he described the ways time travel has taken place today.

For example, a particle called a pi meson is usually short; they are destroyed after a millionth of a second. But their compiles accelerated to nearly the speed of light, extending their lives dramatically. It appears that these particles will be used in time, or do it at a slower time with other particles (not accelerated).