A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

A cosmological simulation study by researchers from the Shanghai Astronomical Observatory of the Chinese Academy of Sciences has systematically revealed, for the first time, how the interaction ...

Whether the Universe will 'end' at all is not certain, but all evidence suggests it will continue being humanity's cosmic ...

Dark energy, a mysterious force that scientists believe is behind the accelerated expansion of the universe, is weakening — which could result in the universe over the course of billions of years ...

After accounting for star age at time of explosion, researchers say our universe may be slowing down. In A Nutshell Younger supernovae appear dimmer than older ones, but astronomers haven’t been ...

What is dark energy? Why does dark energy seem to be weakening? Is our universe part of a larger multiverse? What lies beyond the boundary of a black hole? The universe seems to be rotating, and if ...

The universe is approaching the midpoint of its 33-billion-year lifespan, a Cornell physicist calculates with new data from dark-energy observatories. After expanding to its peak size about 11 billion ...

Let's rewind the clock back…oh, I don't know, let's say a hundred years. It was 1917, and Einstein had just developed his ...