Lowell Observatory began exploring the stars, almost 20 years before Arizona became a state. Now it's being crowned one of ...

Dark energy, this still poorly understood force that accelerates the expansion of the Universe, might be even more intriguing ...

Researchers built the largest 3D map of our universe yet. What they found supports the idea that dark energy could have ...

NEW YORK (AP) — Venus will pass between the Earth and sun on Saturday during what’s called an inferior conjunction. But don’t ...

Scientists have taken the clearest-ever images of the universe when it was just 380,000 years old—essentially a baby picture ...

Join President Sandoval and Professor Geoffrey Blewitt as they discuss the science of geodesy, the ways in which GPS impact ...

The latest Dark Energy Spectroscopic Instrument results fall short of the discovery threshold but strengthen evidence for dynamical dark energy.

New results from Dark Energy Spectroscopic Instrument hint that the influence of mysterious force driving universe's accelerating expansion may change over time.

A groundbreaking new dataset containing information on 18.7 million celestial objects —the largest ever assembled—is now accessible to researchers, paving the way toward solving some of the universe’s ...

According to the new DESI numbers, dark energy may be changing over time—either causing the universe’s expansion to ...

The fate of the universe hinges on the balance between matter and dark energy: the fundamental ingredient that drives its ...

The findings suggest that dark energy is dynamic and changes over time, and that it used to be stronger in the early stages of the universe but is weaker now. That’s particularly odd because most ...