But the Universe is a very large place, and when you add up the entire volume of space and look to the far future, dark energy will be the only force that matters in the end. Editorial Standards ...

This article delves into the potential forces that might be at play in the universe, exploring the known and unknown aspects of cosmic mechanics. The Enigma of Dark Matter.

The electroweak force only existed at temperatures approaching 10 15 Kelvin (about 1,800,000,000,000,000 ºF), which is why ...

Ever since our universe exploded into being some 13.8 billion years ago, it has continued to expand. Stars and galaxies are continually moving apart — so fast that even if you were to take off ...

The universe — everything in existence — is expanding every second! It's only been about a hundred years that humanity has known this, too — that most galaxies are traveling away from us and ...

Where dark energy is a repulsive force that stretches our universe, scientists have found that dark matter has the opposite effect. Dark matter acts as a parking brake to slow what could be a much ...

The first set of results from a pioneering cosmic-mapping project hints that the repulsive force known as dark energy has changed over 11 billion years, which would alter ideas about how the ...

This seemed wrong to him, so he added a “cosmological constant” — a kind of energy inherent in empty space — to balance out the force of gravity and keep the universe static.