The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously ...

Dark energy and black holes are two of the most mysterious topics when it comes to space, but they might actually be linked. And causing the universe to expand.

Dark energy, the invisible force making up 70% of the universe, accelerates cosmic expansion and could one day cause the “Big ...

New strategies may soon allow scientists to test dark energy theories within our own solar system, linking cosmic-scale physics to local observation. Science advances through a cycle of proposing ...

Astronomers may have misread cosmic acceleration for 27 years. The universe may be slowing down, not speeding up.

Left: A key figure from the report, exploring what the cosmologically coupled black holes, or CCBH, hypothesis implies about the mass of neutrinos, or "ghost particles." Right: An annotation of this ...

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 ...

A recent study by Rajendra Gupta, published in "Galaxies," proposes that cosmic phenomena conventionally ascribed to dark matter and dark energy can be explained by the temporal weakening of ...