Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

For centuries, humans have thought of time as a linear concept - but time dilation challenges that perception. Just as gravity pulls things down, time simply moves forward at a constant, unwavering ...

Add Yahoo as a preferred source to see more of our stories on Google. If traveling into the past is possible, one way to do it might be sending people through tunnels in space. by raggio5 via Pixabay ...

This video looks at how physicists study time travel as a scientific concept, exploring what theories like relativity say ...

One of the best time-travel movies ever made doesn't need to bother with wild indulgences like "special effects." ...

We love a good time travel story. Sometimes, we even love a bad time travel story. We love time travel. This sci-fi subgenre is one of its most flexible, as you can approach it from many different ...

Janelle has an extensive career as a writer, with over a decade of freelance experience, especially when it comes to pop culture. Although her first love was music, she also enjoys digging into ...