GENERAL KNOWLEDGE

Detailed explanation-1: -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.

Detailed explanation-2: -Dark matter is stuff in space that has gravity, but it is unlike anything scientists have ever seen before. Together, dark matter and dark energy make up 95% of the universe. That only leaves a small 5% for all the matter and energy we know and understand.

Detailed explanation-3: -This is because dark matter does interact with gravity, but it doesn’t reflect, absorb or emit light. Meanwhile, dark energy is a repulsive force-a sort of anti-gravity-that drives the universe’s ever-accelerating expansion.

Detailed explanation-4: -Dark matter makes up most of the mass of galaxies and galaxy clusters, and is responsible for the way galaxies are organized on grand scales. Dark energy, meanwhile, is the name we give the mysterious influence driving the accelerated expansion of the universe.