Animation of the findings by researchers who used time-delay cosmography to independently confirm that the universe’s current ...

For almost a century, we have known that the universe is expanding. For several decades, evidence has suggested that the expansion of the universe is accelerating. Crucial to those estimates were the ...

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...

The question of whether the cosmos goes on forever is no longer just a late night thought experiment, it is a live research ...

Physicists have been puzzling over conflicting observational results pertaining to the accelerating expansion rate of our Universe—a major discovery recognized by the 2011 Nobel Prize in Physics. New ...

Our universe appears to be expanding about eight percent faster than initially assumed possible, according to new observations from the James Webb Space Telescope. There has been a long-established ...

R esearchers have calculated one of the most precise estimates for the expansion rate of the universe today, and it turns out ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

Cosmic inflation tries to describe one brief but crucial phase in the Big Bang that launched the universe onto its expansion course. Many textbooks and science educators have attempted to describe the ...

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, Hawaiʻi Island, have made one of the most precise independent measurements ...

Scientists have long held that the universe is expanding at an ever-increasing rate, driven by a mysterious but measurable force known as dark energy. Now, a new study might upend that idea, ...