Professor Andrei Linde is one of eight Stanford scholars named to American Academy of Arts and Sciences back in 2011. His theory on the inflationary universe scenario appears to have gradually emerged as the standard paradigm of modern cosmology, replacing the previous versions of the Big Bang theory. The idea suggest that quantum fluctuations produced during inflation are responsible for galaxy formation
There are so many concepts and theories relate to the starting and evolution of our universe. Among those ‘The Big Bang Theory,’ steady state theory, universal homogeneous concept and universal isotropic notion are the major theories and notions. But, with the development of scientific findings major part of astronomers like to believe ‘The Big Bang theory.’
The major evidence for the Big bang theory is the cosmic microwave background radiation(CMB) that are coming from the deep universe to the detectors. Actually, that CMB radiation indicates the universal redshift. That indicates the galaxies and all other matters in our universe are moving away from each other. Then according to the Doppler effect the wavelengths of electromagnetic waves should increased. i.e. those electromagnetic light waves coming from the faraway light sources should shift to the red region of the electromagnetic spectra. That incident call ‘the universal redshift.’
The Big bang theory investigates and posits the notion that our universe started to exist with a huge explosion called big bang. At the moment of that event, the universe was contracted to a small area such that the energy density tended to infinity and the temperature was just billions times rather than now. Actually, at that moment, no atom could exist as the result of unusual physical conditions. But after the Big bang happened, the universe immediately started the expansion through space time. However, according to the new scientific findings, the expanding speed is accelerating, which means our universe is an open universe and not a close universe (close universe term indicates that the expanding speed of our universe is de- accelerating).
As prestigious as they are, American Academy of Arts and Sciences has remained plausibly objective on the subject of ‘the big bang,’ as indicated by their membership and the scientists they honor.
Written By: Geerasee Wijesuriya
Sources: The logic I could argued and the Hubble’s law for universal expansion.