Determining the expansion rate of the universe, the "Hubble constant," shapes our understanding of the cosmos, its age, and its fate.

The specific number may or may not need revision as an important debate is happening in cosmology about the value of the ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

The idea of dark energy, a mysterious force thought to be responsible for the accelerated expansion of our universe, is being ...

A compound lens forged by two galaxies is helping astronomers get a bead on the Hubble Constant and dark energy.

Back in the 1960s, Frank Drake, an American astrophysicist and astrobiologist, proposed an equation aimed at estimating the ...

A new model based on the famous alien-hunting Drake equation suggests that some parallel universes within the hypothetical ...

At first, there seems to be no known direct relationship between the expansion of the universe, the number of the gravitational constant, and the proximity of the infinitely variable genetic codes to ...

This universe is just cruising at the same expansion rate now as in the past. Compared with the first possibility, the closed universe, expansions in the past would have to have been slower to get ...

The expansion of the Universe is not constant. Recent measurements have shown that the rate of the Universe's expansion is increasing. The evidence for this area of physics comes from observations ...

They've long wondered to what degree gravity is slowing down that expansion rate. If gravity is weak, the universe would expand forever; if gravity is strong enough, the universe would eventually ...