The Universe The immense sky that surrounds the Earth and all the celestial bodies present in it (eg- Milky way, stars, planets, satellites, etc.) and the entire energy is called the universe as a whole. The study related to the universe is called Cosmology. The universe is so huge, which we cannot even imagine. … Read more
The milky way The milky way is a huge body of billions of stars. The stars remain bound to the galaxies, for this the gravitational force is responsible among the four fundamental forces: gravitational force, electromagnetic force, strong force and strong force. There are approximately 100 billion galaxies in the universe and each … Read more
SCATTERING OF LIGHT When the sunlight travels in the Earth’s circle, it is scattered by the particles in the atmosphere. Light of shorter wavelengths is far more visible than that of larger wavelengths. The amount of scattering is inversely proportional to the 4th power of wavelength. (This is called Raleigh scattering.) This is why … Read more
Have you ever wondered why celestial lightning falls and, then what causes it to fall? Why and how does such a loud sound come when lightning falls. So let’s start, When lightning occurs, the temperature of the surrounding air rises to about 28,000°C within an instant. This temperature is about five times higher than the … Read more
Constellation A group of stars appears to give the appearance of a particular shape when viewed from the earth. Our ancestors conceived some shapes in many names are known as a constellation. These constellations are named on the basis of their shape. For example- Ursa major Ursa Minor Orion Cygnus Hydra … Read more
Black Hole The future of a neutron star depends on its mass. It is estimated that the contraction of heavy neutron stars can occur indefinitely. In the same order, when a neutron star of mass m shrinks to obtain radius r=2Gm/c²,it becomes a black hole. Michel first envisaged the existence of a black hole. … Read more
