Verified answer

While time travel is not possible, traveling at relativistic speeds (close to the speed of light) will cause time to slow down, essentially allowing you to travel into the future. Traveling fast than the speed of light (currently believed to be impossible) could possibly allow for traveling back in time.

Recent data suggests traveling to the future is possible. That same data also shows that traveling to the past is impossible.

Time travel requires that a principle of general relativity be violated. This principle is known as the strong energy condition of general relativity.

Theoretically yes!

only if you have a Delorean.