Introduction The early universe was vastly different from the one we know today. The big bang left the universe in a state of relative simplicity. Our observations of the cosmic microwave background tell us that after the big bang, the infant universe was rather uneventful, compared to the present. Clearly, something changed. Our observations of …
Introduction It may come as a shock to some of you that all images received from space telescopes are black and white. They are colourized later. But first, let\’s understand how cameras work and if there are any differences between cameras in smartphones and cameras sent to space. How cameras in smartphones work The camera …
The Big Bang Theory is the most widely accepted theory regarding the formation of the universe. It was discovered that the universe is moving away from us in all directions, that is, expanding at a tremendous rate. This concept has been verified with the redshift of galaxies and the cosmic microwave background. At the very …
Has anybody ever wondered why almost every object we see in the universe is spherical? From the smallest atoms to the immensely massive stars, all are spheres. Even the galaxies which are now flat and oval-shaped are believed to have commenced as spherical balls of hot gas and other materials. “Why is the universe biased …
Introduction Did you know that a mere 5% of the universe consists of normal matter? This includes the atoms which make up all visible objects, ranging from cars and living organisms to even planets and stars. The other 95% contains dark energy and dark matter 1. But what exactly do we mean by these two …
