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

According to the model, dark matter may have started as particles that were hot, light, massless, and fast. As the universe ...

A team of astronomers have found a mysterious object in the distant universe that could be dark matter or an inactive smaller, or dwarf, galaxy.

Astrophysicists have presumed for nearly a century that the universe will just keep expanding for all eternity, driven by an ...

Using a global network of telescopes, astronomers have detected the lowest-mass dark object yet found in the universe.

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 ...

If recent discoveries that dark energy is evolving hold any water, our Universe will collapse under its own gravity on a finite timeline, new calculations suggest.

About 85% of the universe is dark matter, and some physicists speculate an entire parallel dark universe—and even dark ...

Discovery: An international team has discovered a dark object in the distant universe that has one million times the mass of ...

Euclid uses a method called 'step-and-stare to scan the night sky, which allows it to combine a bunch of separate measurements to form a larger image. Ultimately, scientists believe this will yield ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the bending of space and time. Quantum mechanics governs the world of particles ...