Cosmic definition

• Cosmological red-shift

Due to stretching of light/electromagnetic radiation cause by stretching of space between observer and any celestial object there is increase in wavelength of the electromagnetic radiation that emitted by that object is called redshift.

This is some sort of like a doppler effect but one thing is noted that in this case there is not any relative motion as in the case of doppler effect rather it measure in unit of velocity.

• Cosmological Blueshift :

All things are the same as that of the redshift but here is decrease in wavelength due to object in space is come nearer to the observer.

• Hubble's law :

The law states that redshift Velocity of Galaxy is proportional to its distance so Galaxy twice as far away is receding twice as fast and so on..

This does not mean that we are at centre of the universe however the low work same way whichever galaxy you observe from.

• Microwave :

It is a one type of radio waves wavelength in range of 1 to 30 centimetre

They used to study the background radiation leftover from big bang and in the study of interstellar molecules

on Earth it is used in oven,radar and telecommunication

Our present universe is one type of microwave oven with the temperature is -273.3°C(2.85 K)

• Aberration :

Apparent position of stars varies during the year is due to relative motion between source of the light and earth rotation - this phenomenon is called Aberration,in which stars appear to move about its true position.

• Diffraction :

A process by which a wave can bend around corner or spread out in all direction from small hole/slit.

• duality :

A way that quantum entity seem to have both state : wave and/or particle

for example a light is consider as a wave but it has a photon as a fundamental particle of light

• Superposition :

this is when Quantum system exist in a mixture of state for example electron has property call spin,on its own electron is in superposition of spin up and spin down. it only collapse into one state when it interact with something.this link idea of quantum probability there is so chance of finding electron in other state.

• Annihilation :

Two dark matter particles come together creating cascade of new particles.

• Standard model :

Recipe book that particles physicist used to explain about subatomic particles. It contained rules regarding how particles interact with force and light.

• Supersymmetry :

It is idea beyond standard model say every normal particle has supersymmetry partner particle.the lightest of the supersymmetry particles could be responsible for Dark matter.

• Accretion disc :

Rotating matter is put into disc shaped by a star (part of the formation process of solar system)

In case of black holes nearby matter is accelerated instead by Gravity giving of bright glow

Jet streams of matter accelerated to nearly speed of light are emitted at right angle to accretion disc. because of this jet is uncertain through a result of complex magnetic field.

• pauli exclusion principle :

This principles of quantum mechanism establish that two fermions (type of subatomic particles) cannot be an identical state.this result in exchange interaction which is like short range force keeping fermions apart except in extreme condition like black hole formation.

• Singularity :

Mathematical predicted condition where spacetime so locally distorted by gravitation that force of gravity tend to infinite and current theory of Physics breakdown.

• Dark energy :

it might be fundamental property of empty space or it may be a new kind of Energy field or fundamental force feeling all of space but having a opposite effect on normal energy and matter.