Dark energy, the mysterious force driving the accelerated expansion of the universe, has puzzled scientists since its ...

Rather than tracing the expansion of the universe backward to an unexplainable singularity, the theory asks what occurs when a dense cloud of material is compressed by gravity.

Modern cosmology has precisely measured the universe's properties, yet dark matter and dark energy remain profound mysteries.

A University of Queensland researcher has developed a new mathematical model to explain the evolution of the universe which, ...

Dark energy, the mysterious phenomenon that powers the expansion of the universe, may undergo periodic 'violent transitions' that reverse the growth of the cosmos, a new pre-print study hints.

How exactly did the universe start and how did these processes determine its formation and evolution? This is what a study published in Physical Review Research hopes to address as a team of ...

In 1998, two independent projects—the Supernova Cosmology Project and the High-Z Supernova Search Team—confirmed that the expansion of the universe was accelerating.

In one new theory, it is possible that dark matter exists in a mirror universe where there are only dark versions of forces ...

Just as ocean waves shape our shores, ripples in space-time may have once set the Universe on an evolutionary path that led to the cosmos as we see it today.

The accelerating expansion of the universe could be explained by modifying general relativity so that gravity has mass – or so thinks a small group of physicists. Matthew Francis reports What lies ...

A new Utah Valley University study is providing new evidence in a debate astronomers across the world haven’t been able to agree on — how fast the universe is expanding. The findings may add ...

That cosmologists cannot agree on one of the most elementary facts about the universe is striking enough. But that ...