Universe: How little we know about it - Aarav Singh

Name: Aarav Singh

Date:  10th October 2022

Title of the Post: Universe: How little we know about it

Content of the post:  

The universe is everything, it consists of space, matter, and energy that space contains. Space consists of galaxies, stars, planets, black holes, etc. Many galaxies cluster up to form huge clusters of them, these clusters can also tend to form superclusters, there are estimated to be 1 - 2 trillion galaxies  In-Universe. Our Milky Way galaxy lies in the Virgo cluster in the local group of galaxies. In the Milky Way galaxy lies our Solar System. 80% of the whole universe consists of dark matter whereas 20% of the universe consists of ordinary matter. All Stars and Galaxies that can be seen today make up 5% of the total universe, Rest of the 95% of the universe is not visible to us. We are extremely tiny compared to the universe , light is much slower than expected , and it can circle the earth in less than a second but it doesn't make it fast enough to compete with the rapid expansion of the universe. That is why we can't see most of the stars and galaxies and travel at the speed of light or near the speed of light is impossible. Maybe in the future, we may develop technological advances but we will never be able to explore the whole universe due to its vastness.  

CREDITS: Google Images