What is the Dark Energy?

The most violent class of supernovae, Type Ia, are massive explosions that shine extremely bright. Just like dark matter, we must rely on observing dark energy's effect on our surroundings to detect it. So, how do we detect invisible, untestable energy?

Dark energy makes up 73% of the universe and is invisible to our eyes and current technologies. This finding sent shockwaves throughout the astronomy and physics community. Advanced technology and knowledge now allow us to calculate a precise number, which revealed that the universe is actually speeding up, not slowing down.

Edwin Hubble's 1929 observations of distant supernovae first told us that the universe is expanding. However, we knew that gravity eventually wins and would pull the universe back in. In other words, dark energy is an unidentified repulsive force, acting against gravity.

Dark energy is an invisible force that causes our universe to expand at a constantly increasing rate. It's loaded with things we can't even see, like dark matter. When we look into the night sky, we see a Moon, planets, and stars with black space in between. However, that 'black' space is anything but empty.

In simple terms, dark energy causes our universe to expand. This concept may seem complicated, but understanding it can help us better grasp the mysteries of the universe. By studying dark energy, scientists aim to uncover its secrets and gain a deeper understanding of the cosmos.

By breaking down this complex topic into simpler terms, we can appreciate the incredible discoveries made in the field of astronomy and physics. Dark energy may be invisible, but its impact on our understanding of the universe is undeniable.

What is the dark energy