DARK ENERGY A MYSTERIOUS ENERGY

Dark Energy is known as “unknown energy” which is a hypothetical concept to determine the accelerating the expansion of a universe. Dark energy contributes 68.3% of the total energy in the present universe. Other is ordinary matter which contributes 4.9% of the total energy and mass-energy of dark matter contributes 26.8% and remaining contributes (protons and neutrons and photons) very small amount of energy.

We find the existence of dark energy indirect but which comes from independent sources these are:

1.    Distance measurements and their relation to red shift, which suggests that the universe is expanding.

2.    There is additional energy which is not a matter or a dark matter to form the flat universe. It can measure from a large scale of wave patterns of mass density in the universe.

3.    Dark Energy never emits or absorbs light and these are composed by Baryons or Non-Baryons matter.

(REMEMBER): Baryonic matter composed of protons, neutrons and electrons and non-Baryons which are not composed of protons, neutrons and electrons.

General Discussion: These analysis shows that dark energy increases in present time. In the past time dark energy has low or say has less impact that the present time. We say that dark energy increases as it is unknown energy for us (Humans).

In fact dark energy has a cosmological constant which was given by German born physicist and Mathematician Albert Einstein (1889-1955). In his cosmological constant, he said that cosmological constant (Lambda) leads us to static universe.

(Note): 1) Big Crunch is opposite to the Big Bang, which explains the expansion of the space time eventually reverses and ultimately ending as a black hole singularity and which causes a reformation of the universe.

2) Not sure, may be dark energy was present before the big bang.

3) Temperature at the time of big bang is extremely very high.

4) If the density of the universe is less than the critical density, then the universe is expanded forever and even gravitational pull cannot stop it and where universe cools and it expands and reaches a state of entropy also known as “Big Freeze”. And we have another big Bang in which universe collapse to the state.

In 1929, American astronomer Edwin Hubble studied expanding stars known as supernova. This shows that the universe is expanding. But the problem is that this unknown energy (we called dark energy) has no effect and no one is affected by the gravity which is present in universe. We all know that our universe is expanding but some physicists believe in recent time that universe was not expanding as they expected, the reason was clear the gravity holds the expansion of our universe. But recently, Edwin Hubble showed that universe is expanding and this is due to the expansion of supernovas.

But in 1990’s some physicist believed that universe was not slowing down as they expected. Some unknown things are counterpart gravity and dark energy. But another problem is that how gravity works. It is not understand by anyone in proper manner. Albert Einstein understands that space was not empty. In this theory of general relativity he used the term cosmological constant which later called his greatest blunder in his life. Which means universe is Stationary (This after the “Edwin Hubble” called the universe is expanding”.

General Discussion: When we think in those energies which are hidden from all of us we have many thoughts which are created in our minds what all these things are doing here (in our universe). Some believe that it is the nature, some believe it balancing our universe or say nature and some believe it is the work of God to play with all these things. We have much energy which is still hidden from all of us. So pray that we (our human generation) will see all types of energies to understand with its actual and accurate laws.