Question

what is dark energy​

Answer 1

Answer:

Dark energy is the name given to the mysterious force that's causing the rate of expansion of our universe to accelerate over time, rather than to slow down. That's contrary to what one might expect from a universe that began in a Big Bang. Astronomers in the 20th century learned the universe is expanding

Explanation:

its my pleasure to help you.

please mark me as a brainliest

Answer 2

Explanation:

Dark Energy is a hypothetical form of energy that exerts a negative, repulsive pressure, behaving like the opposite of gravity. Dark Energy makes up 72% of the total mass-energy density of the universe. ... The other dominant contributor is Dark Matter, and a small amount is due to atoms or baryonic matter.