Two physicists from the University of Queensland in Australia recently laid out a model for studying hypothetical time travel. Their work expands on what’s called the Alcubierre spacetime, first ...

A mysterious painting from 1937 has left viewers baffled after a Native American man appears to be holding what looks like a ...

A decades-old photograph has sparked bizarre time-travel theories over a detail that seemingly does not belong.

The painting at Munich's Neue Pinakothek museum appears to show a woman holding what looks like a smartphone, convincing ...

Cosmic strings are artifacts of what the universe looked like in the moments before it rapidly changed from a high-energy to low-energy environment—the Big Bang. Today, scientists believe cosmic ...

Scientists have taken one more step down the very long road to time travel. A new paper combines the Alcubierre “warp” drive with the idea of “controlled closed timelike curves.” Though far out, ...