UPSC Prelims [05]: World & Physical Geography

Geography-1: Astronomy Basics Important Prelims Topics Age/ Size of Universe, Cosmic Horizon, Big Bang Theory, Expansion of Universe, Cosmic Microwave Background, Hubble Constant, Doppler Effect, Blue and Red Shift, Black Holes, Wormholes and Cosmic Strings, Dark Matter & Dark Energy, Galaxies Basics, Milkyway and Andromedia, Radio Galaxies, Magellanic Clouds, Intersteller Medium, Nebula, Quasar, Stellar Evolution, […]