The Galaxies: Charms of the Universe | Space | ScienceMonk

Galaxy (adopted from Greek word ‘galactos’ meaning milk) is a complex structure of a gargantuan collection of dust, gas, billions of stars and their stellar systems, compact objects and dark matter which is held by gravity. Galaxies are the charms of the universe forming into groups, clusters and huge structures called superclusters, appear as filaments neighbouring large void regions!

The Development of Kepler’s Law of Planetary Motion: An Overview

He stated in his work “I wanted to become a theologian, and for long I was uneasy, but now, see how through my efforts God is being celebrated in Astronomy.” In this work, he considered Sun being the center of the system and planets revolving around it in circles in their orbits. Though, he gave the wrong description of planetary orbits.