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

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

Our universe appears to be doing so now, which means that over time more and more stars are disappearing outside of our view.

Gravitational waves are energy-carrying waves produced by the acceleration or disturbance of massive objects. These waves, ...

Astronomers have captured the first radio image of two supermassive black holes orbiting each other within the quasar OJ287, ...

Evolving dark matter may explain cosmic acceleration. Observations support a mixed model. For years, a stubborn puzzle has sat at the center of the standard cosmological model. The evidence clearly ...

Time is not absolute, and Einstein argued that different observers experience the present differently depending on relativity ...

A new look at radio maps of the sky shows a pronounced tilt, called a dipole, that astronomers are still unable to explain ...

Astronomers studying the supermassive black hole M87*, a behemoth six and a half billion times the mass of the Sun, have uncovered a new way these cosmic monsters unleash their power.

A violin owned by Albert Einstein that was authenticated by a University of Cambridge academic has fetched £860,000 at ...

Dubbing these “closed timelike geodesics” (CTGs), Ralph and Sajeendran explain in the paper: “Such a CTG would be ideal for ...

Scientists at TU Wien have uncovered that quantum correlations can stabilize time crystals—structures that oscillate in time ...