Results for: dark-energy

What does dark energy mean?

The term "dark energy" refers to the force that is driving the accelerating expansion of the universe. It is referred to as "dark" because the nature of this energy is currently a mystery to scientists. Full Answer

Why is dark energy so weak?

We do not know what dark energy is, so we can only theorize about its sources. However, if dark energy were much stronger than current observations estimate, life would not be possible. Therefore, we can say dark energy is weak… Full Answer

What is the opposite of Dark Energy?

There is no opposite of dark energy in the sense that there exists something that is the exact opposite of dark energy. Dark energy speeds the rate of expansion of space, even empty space, and gravity, mass, or matter causes… Full Answer

What do scientists know about dark energy?

In physical cosmology, astronomy and celestial mechanics, dark energy is a hypothetical form of energy that permeates all of space and tends to increase the rate of expansion of the universe. Dark energy is the most accepted theory to explain… Full Answer