64This article discusses a theory that the universe could have been recreated repeatedly after several "big bangs" until the laws of physics worked.
Are gravity and time related? In this article, I examine a theory that helps explain why time only goes forward due to a force pulling in one direction.
I discuss the following issues: The distance imposes a significant limitation, life forms may differ from what we expect, and our communications technology could differ from theirs.
Future time travel doesn't break any laws of physics. So it's likely possible with advancing technology. But we can't change what has already occurred in the past, so going back is impossible. Read this analysis of the entire concept.
As we grow older, our perception of time changes, mainly because we have less time ahead. Learn eight reasons why we experience time going faster as we age.