SciGaze Group

Theories during the formation of the solar system: According to the conventional big bang model of cosmology, time and the cosmos originated as a singularity roughly 14 billion years ago. Our cosmos began with the Big Bang, an explosion of space itself. Space expanded, the universe cooled, and the simplest elements were created, starting from extraordinarily high density and temperature. Gravity brought matter together throughout time to build the first stars and galaxies. Researchers have discovered for the first time that some of the heavier elements in the periodic table are generated when two neutron stars collide and burst cataclysmically. Light elements such as hydrogen and helium were generated during the Big Bang, while heavier metals such as iron are created by fusion in the centres of stars. There are five theories behind it: The Accretion theory The Protoplanet theory The Capture Theory The Modern Laplacian theory  The Modern Nebular theory 1. The Accretion theory: The accre

Formation of Solar System: According to the conventional big bang model of cosmology, time and the cosmos originated as a singularity roughly 14 billion years ago. Our cosmos began with the Big Bang, an explosion of space itself. Space expanded, the universe cooled, and the simplest elements were created, starting from extraordinarily high density and temperature. Gravity brought matter together throughout time to build the first stars and galaxies. Researchers have discovered for the first time that some of the heavier elements in the periodic table are generated when two neutron stars collide and burst cataclysmically. Light elements such as hydrogen and helium were developed during the Big Bang, while heavier metals such as iron are created by fusion in the centres of stars.  The Sun and the planets emerged from a cloud of gas and dust termed the solar nebula 4.6 billion years ago. The collapse of the solar nebula was most likely triggered by a shock wave from a nearby supernova exp

Introduction We all know cells are the basic building block of all living organisms. To be even more precise, the cell membrane plays a vital role in the various processes occurring in the cell. It protects the cell, acts as a protective wall and controls the entry and exit of materials. If we further zoom in on the cell membrane, we will find bilayer phospholipids. These phospholipids are usually made up of a hydrophilic head group (like serine, ethanolamine [EtA] or choline) attached to two hydrophobic tails (hydrocarbon chains derived from fatty acid). In simple words, the cell membrane is made up of phospholipid, which itself is made up of various organic molecules. But our centre of attraction here is only EtA (ethanolamine) because researchers recently discovered EtA in space!! More about EtA : EtA is the simplest one and the second most abundant phospholipid in the cell membrane. EtA is also the direct precursor of glycine (the simplest amino acid), which plays an essential role

Introduction:  When a massive volume of matter, such as a cluster of galaxies, forms a gravitational field that bends and magnifies light from distant galaxies that are behind it but in the same line of sight, this is known as a gravitational lens.  Only the greatest telescopes can view the related phenomena of gravitational lensing, which is only apparent in rare situations. Einstein's view on Gravitational Lensing: Einstein set down a succinct statement of one of the most fundamental consequences of light deflection as early as 1912, a good three years before his eventual breakthrough in the formulation of general relativity: A (geometric) gravitational lens could be possible. Einstein hypothesized in the 1930s that mass distribution, such as a galaxy, may function as a gravitational "lens," distorting images of objects beyond the gravitating mass as well as bending light. While Einstein's theory of gravity has passed every test to date, no one can be certain that i

 Introduction: Measuring the velocity of a star with respect to the motion of Earth and the solar system is a very important task for astronomers. For decades astronomers are always trying to measure the velocity of stars with maximum accuracy. Astronomers use a very famous concept called Doppler shift to measure velocity. You might have heard of the Doppler effect (change in sound intensity of any object as it approaches or moves away from the observer). Similarly, the Doppler shift tells whether the object is approaching or is moving away from the observer. Redshift if it is moving away and blue shift if it is approaching the observer. But the standard Doppler method has few drawbacks. Several white dwarfs showed excess gravitational redshifts. This makes it difficult for astronomers to calculate the velocity. Astronomers faced the same problem in the case of Sirius A and Sirius B. To solve this problem, astronomers developed a new method to measure a star's speed along the line