Are time travels possible?

Traveling to the future is possible in theory.

When was Special Relativity introduced?

Einstein’s theories say that both speed and gravity can affect time.

Time always passes the same for everyone, no matter what.

Who developed the theory of relativity?

What gives time its "arrow" or direction?

What’s the main reason scientists think traveling to the past is impossible?

Which object creates very strong gravity that affects time?

What does time dilation mean?

What does Einstein’s theory help us understand about time travel?

What two things did people used to think were separate before Einstein’s theory?

What does entropy mean?

We already have the technology to travel through time

In the twin experiment, who would be younger when they reunite?

What year did Einstein introduce General Relativity?

A black hole’s gravity can slow down time

What causes time to slow down according to General Relativity?

What law says entropy always increases over time?

On Miller’s planet in Interstellar, 1 hour equals 1 Earth day.

What is the name of the structure that combines space and time?