Most explanations rely on "dark energy" to explain the Universe's accelerating expansion rate, but a new study takes a different path.

Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...

Researchers have unveiled a new model for the universe’s birth that replaces cosmic inflation with gravitational waves as the ...

Why is the universe expanding at an ever-increasing rate? This is one of the most exciting yet unresolved questions in modern ...

The story begins with the black hole information paradox. According to relativity, anything that falls into a black hole is ...

Some habitable worlds orbiting dead stars could be kept alive for aeons thanks to a quirk of Einstein’s theory of gravity ...

This week, researchers reported the discovery of four Late Bronze Age stone megastructures likely used for trapping herds of ...

A research team proposes utilizing numerical relativity, a computational technique for solving Einstein's equations in high-gravity environments, to investigate the universe's origin. The approach ...

Researchers suggest gravitational waves, not cosmic inflation, may have driven the universe’s formation. This model links ...

In physics, the evolution of the universe has so far been described by the general theory of relativity and the so-called Friedmann equations. However, in order to explain the observed expansion of ...