<![CDATA[ From phone boxes and flux capacitors to black holes and hot tubs, sci-fi has created plenty of ways to explore the fourth dimension. ]]>
Time travel theories explore the possibility of moving between different points in time, often through concepts such as wormholes, time dilation, and the multiverse. These theories are rooted in the principles of physics, particularly Einstein's theory of relativity, which suggests that time is not a constant and can be affected by speed and gravity.
Wormholes are hypothetical passages through space-time that could create shortcuts for long journeys across the universe. They are solutions to the equations of general relativity and suggest a connection between two separate points in space-time, potentially allowing for time travel or faster-than-light travel.