However, as much as we might like to travel through time, this concept raises paradoxes (things that don’t make sense) and ...

And that's not to mention the fact that it would seem to open the door to paradoxes of time travel, where influencing the past alters the present. However, it wouldn't be the first time quantum ...

Hear Sagan via RealAudio Sagan: The grandfather paradox is a very simple, science-fiction-based apparent inconsistency at the very heart of the idea of time travel into the past. It's very simply ...

Einstein’s general relativity predicts the existence of closed timelike curves—space-time loops allowing theoretical travel back to past events. In a rotating universe, space-time could warp ...

Anderson's time-travel mystery, 'The Expert of Subtle Revisions,' explores the way history is affected by how it is told and who does the telling.

A peer-reviewed study confirms the mathematical feasibility of time travel using closed time-like ... s paw—actions have consequences, but paradoxes are avoided by recalibration of events.