Festivals form a very essential part of Indian culture. Although each festival is celebrated in its unique way, there is a very uncanny astronomical basis for each of these festivals. Keeping a track of time and date has been the greatest challenge for humankind, however, with the invention of the…
Impact Craters, evidence of bombardment by meteorites which bring rich elements from space, and some of the bigger meteorites causing mass extinction of species. On the Earth, 170-180 impact craters have been identified. They vary in size from a few hundred meters up to or more than 200 KM and…