Question

what percentage of universe is dark energy?​

Answer 1

Explanation:

Dark energy is a mysterious form of energy which generates the force responsible for the acceleration of the expansion of the universe at an ever-increasing rate since the Big Bang.

The existence of this form of energy is still mysterious to the scientists.

Astronomers also know only this much that dark energy is a force that works against gravity. While gravity pulls stars together, dark energy pushes them apart.

Answer 2

Answer:

68%

explanation -  the universe is dark energy. Dark matter makes up about 27%. The rest - everything on Earth, everything ever observed with all of our instruments, all normal matter - adds up to less than 5% of the universe.