Definition
The cosmos refers to the universe as a whole, encompassing everything that exists: space, time, matter, and energy. It's all the planets, stars, galaxies, and everything in between. Think of it as the ultimate mega-structure, the largest thing we can imagine. Itβs often used to describe an ordered and harmonious system. Scientists study the cosmos to understand its origins, evolution, and ultimate fate. The cosmos is vast, mysterious, and constantly expanding.