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DARK MATTER AND DARK ENERGY

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...

HOW DOES LIFE ORIGINATE ON EARTH

 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...

HOW BIG IS THE UNIVERSE?

UNDERSTANDING UNIVERSE IN A NUTSHELL  Our universe is estimated to be around  93 billion light-years width and  it's constantly expanding but then again  that's just the observable universe  alone  astronomy is an amazing field of science  but before you dive into the wonderful  world of astronomy let me share with you  some basic facts that might help you, later on,  let's start off with the term  Lightyear which is a very commonly used  astronomical term but what exactly does  it mean a Lightyear simply put is a  distance light travels in one year which  is about  5.88  trillion  miles. In astronomy, we also use the  word parsec which means 3.26  light-years but let's just try to  keep things as simple as possible so we  now know that one light-year is about 5.88  miles  and the universe is about 93 billion  light-years wide and when we multiply  those two ...

WHAT IS A BLACK HOLE ?

WHERE TO BEGIN There are many mysteries about the birth of the universe, its evolution.  But the most important and dangerous mysterious thing is a black hole .  But nobody has ever seen it.  This black hole has the capability to take away even a big planet.  Whatever the thing that once entered into a black hole can never be returned.  The thing that comes closest to this black hole can be swallowed by it.  How much powerful a black hole is,  it can make light travelling at a speed of 3 lakh kilometre per second towards it. And now you will know  - what a black hole is? How does it grow? What will happen to an object that enters into a black hole?                                  STABILITY OF A PLANET Hydrogen is the reason for a star to illuminate brightly.  These hydrogen atoms convert into helium in the process of nuclear fusion and release an enormous am...