Mystery of Dark Energy: Unveiling the Truth

 

Mystery of Dark Energy: Unveiling the Truth

The universe has always been a mystery and the intriguing nature of humans made him solve the puzzle of this universe. One of these mysteries is Dark Energy. The visible universe (stars, planets, galaxies) is only 5% of the entire universe, the rest of 85% is invisible and we term it Dark Matter and Dark Energy. It is called black not because of its black colour. It is called so because it does not emit and reflect light. How can we find it if we cannot see it?

 

History:

Dark Energy was first observed by Swiss astronomer Fritz Zwicky in the 1930s. He argued that if we consider laws of Gravitation, the structure of galaxies and planets will not exist. But the structure of galaxies and stars still exists. Then, there is something inside and outside that makes the structure of galaxies and stars. He also

argued that the velocity at the edge of the star and the centre of the star is the same but the mass at the edge of the star ( which is visible ) appears small. This gives an idea of unseen matter (Dark Matter) Later, in 1970, Vera Rubins confirmed the idea of Dark matter and Dark energy.

 

 

• Einstein's Hypothesis :

 

The idea of Dark energy was first hypothesized by Albert Einstein in 1917 in his '' General Theory of Relativity ''. But he was too reluctant to introduce it because it was thought the universe was static at that time. He introduced a constant with the Greek expression lambda to counterbalance the effect of gravitational energy. After discovering Hubble's constant, Einstein removed it and declared it his '' Greatest Blunder''.

 

• Evidences :

Following are the direct evidences of Dark Energy:

 

• Quasars

• Supernovae type 1a

• Cosmic Microwave Background Radiation

• Weak Gravitational Lensing

• Red Shift

• The Casimir Effect

• Quantum Fluctuations

• Research:

The research on Dark Energy was stopped in the 1970s. But with the invention of the James Web Telescope and other advancements in the field of Astronomy. Astronomers have started working on this mystery. The information about Dark Energy is important as we can predict the origin of the universe, the movement and structure of stars, the expansion of the universe, the rate of expansion and what is the future of the universe.