Question

What is Dark Energy...?​

Answer 1

Answer:

In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales

Answer 2

$\Huge\mathcal\red{\underline{\overline{\mid{\blue{Dark\:Energy}}\mid}}}$

Dark energy is a mysterious quantity that makes up, along with dark matter, most of the mass of the universe