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, ...

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 ...

Forbes contributors publish independent expert analyses and insights. I cover travel, specializing in adventure and the great outdoors. TikTok's 'airport theory' challenges travelers to get to their ...