Question

What is dark engery or dark matter and does it expand the universe or it is g=dm means that is dark matter helping gravity to big crush​

Answer 1

Explanation:

In short, dark matter slows down the expansion of the universe, while dark energy speeds it up. Dark matter works like an attractive force — a kind of cosmic cement that holds our universe together. This is because dark matter does interact with gravity, but it doesn't reflect, absorb, or emit light.

Answer 2

https://goo.gl/search/what+is+dark+energy+and+dark+matter

What's the difference between dark matter and dark energy ... And what's the difference between dark energy and dark matter? In short, dark matter slows down the expansion of the universe, while dark energy speeds it up. ... Dark energy is the far more dominant force of the two, accounting for roughly 68 percent of the universe's total mass and energy.

Dark Energy, Dark Matter | Science Mission Directorate

I hope is helpful dear mark mi brilliant plz