INTRODUCTION 'Matter' when we go out we see trees, buildings, cars, motorcycles, etc... We are surrounded by matter Everywhere. Stars, planets, galaxies everything is matter. All this visible matter is just about 5% and the rest of it is dark matter and dark energy. All we experience is just a tiny bit of a fraction of the universe. But the thing is that we don't much about this dark matter and dark energy. To say what we know about this dark matter and dark energy is actually what it is not. We don't know what it is made up of and how but we know its effect on gravity and light. DARK MATTER Our universe constitutes of planets, stars, galaxies they all have gravity but their gravity is not strong enough to hold them as they are. They are held by something which is strong enough to hold them together and cannot be seen doesn't emit or reflect light, what holds them is Dark matter. Dark matter is everywhere, it is scattered across the universe but we cannot see it un
We know that the most basic components of life on the earth are cells but do you know how does a cell forms? What happened at the beginning of the formation of the earth? How does the stunning diversity in cells had have happened? What caused this diversity? SOLAR NEBULA THEORY According to the solar nebula theory, the Earth and other planets in our solar system are formed by the condensation of the solar nebula, which is a gaseous cloud of dust in space. The dust particles under their own gravity started to come closer, placing the sun at the center of our solar system. Then the rest of the dust started swirling and formed our planets. In this process, gravity did its part and the rest is accretion, which is a process of growth in the layers. Earth has formed around 4.54 billion years ago from the solar nebula. At that time earth is so hot with Volcanic outgassing and the atmosphere had created hostile conditions, the formation of oceans came later. In the early stages, there was