Representational image of hale Bopp Comets are notorious for not ‘performing’ as expected. But this comet from beyond the realm of planets and dwarf planets like Pluto and outermost reaches of the Solar system is probably paying a visit to its Sun for the first and last time. Till I am writing this Comet C/2030 […]
One of the most successful theories of modern science is the Big Bang but it is also one of the most misunderstood ones too. Misunderstanding started with the name ‘Big Bang’ itself as it was not given by the scientist who proposed this theory to explain the origin of the universe but by the scientists […]
When Sir Issac Newton defined Laws of Motion and Gravity, the Solar system had become a very ordered place. Celestial mechanics is derived from these simple laws of motions and gravity. Mediaeval philosophers imagined these planets either as gods or demigods moving forward and retrograde at their whims to make life earthly humans mostly difficult […]
Copernicus by removing earth from the centre of the Universe and by placing it in the orbit around an ordinary star our Sun (and consequently later astronomers placing that star one among hundreds of billions in an ordinary galaxy in an a universe that has hundreds of billions of galaxies) has made the biggest revolution […]
Our ancestors took the Sun for granted. Unlike the Moon it doesn’t change its shape/phase or its brightness on its own doesn’t change, unless its light is blocked by dust fog or clouds. In the morning Sun rises everyday without fail and sets in the evening without fail. Apart from this nothing about the Sun […]
We think we will know a planet when we see one. That is not true. To an uninitiated observer, a planet looks like a bright star. Ancient people have divided stars into two kinds: fixed stars and wandering stars. Fixed stars don’t change their position relative to other stars. So if you see one pattern […]
Copernicus removed Earth from the centre of the Universe, and by placing it in orbit around an ordinary star, our Sun (and consequently later astronomers placing that star one among hundreds of billions in an ordinary galaxy in a universe that has hundreds of billions of galaxies) has made the biggest revolution in the history […]
पृथ्वी सूर्या की पारिक्रम करती है यह जानने से पहले ही आर्य भट ने यह तो जान लिया था कि आकाश के पिंडों की दो गतियाँ हैं एक गेंद जैसी गोल पृथ्वी एक दिन में एक बार अपनी धुरी पर पूरा घूम जाती है। इसी से दिन रात होते हैं और आकाश के सारे तारे […]
Our ancestors took the Sun for granted. Unlike the Moon, it doesn’t change its shape/phase, or its brightness on its own doesn’t change unless its light is blocked by dust, fog or clouds. In the morning, the Sun rises every day without fail and sets in the evening without fail. Apart from this, nothing about […]
