Introduction - Concepts - Chapter 1 Class 6 Geography - The Earth and the Solar System - Geography

Last updated at July 13, 2026 by

[Geography] Introduction - The Earth and the Solar System - Teachoo - Concepts

part 2 - Introduction - Concepts - Chapter 1 Class 6 Geography - The Earth and the Solar System - Geography

  • Objects we observe in the sky are called heavenly bodies or celestial bodies.
  • Celestial bodies include stars, planets, satellites, asteroids, comets, and meteors.
  • The universe originated around 2000  crore years ago from a singularity, due to the Big Bang.
  • The Big Bang theory explains the expansion of the universe from a hot, dense state to its current state of vastness and relative coolness.  
  • A galaxy is a huge system of billions of stars, dust, and gases. There are millions of galaxies in the universe . 
  • Sun and all the other stars that we observed in the night belong to a Milky Way galaxy or Akash Ganga.
Remove Ads Share on WhatsApp
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.