The idea of the mirror world dates back to the 1970s, when Russian physicist Andrei Sakharov first pondered if there could be a universe where time is moving in the opposite direction to ours.

“Count what is countable, measure what is measurable, and what is not measurable, make measurable”—attributed to Galileo Galilei. The detection of a predicted universal background of ...

Untold numbers of galaxies have merged across the 13.8-billion-year life of the universe, and those blasts should still be echoing in the background of space-time today.

Astronomers are trying to listen to the universe’s background hum — a cascade of gravitational waves believed to exist since the first rapid inflation of space following the Big Bang over 13.8 ...

A meatball universe would be composed of isolated, disconnected regions of high density embedded in a connected low-density background. The Swiss cheese universe would be precisely the opposite: ...

A team of astronomers has detected a burst of very-high-energy gamma rays that was created over five billion years ago – the oldest such burst ever detected. On their journey to Earth, the gamma rays ...

Dual Universe lacks aliens (or at least so we’ve been told for now), only other players. The studio is creating a shell of a world, and what players do with it is up to them.

Universal Epic Universe features five unique, elaborately themed worlds: an original concept world called Celestial Park, How to Train Your Dragon – Isle of Berk, The Wizarding World of Harry ...