How many stars are there in the Universe?


This post is also available in: हिन्दी (Hindi)

“The heavens declare the glory of God; and the firmament sheweth his handywork” (Psalms 19:1).

This question has captivated scientists as well as philosophers throughout the ages. On a clear night, a person may be able to see a few thousand individual stars with the naked eyes. With even a modest amateur telescope, millions more will come into view.

So, how many stars are there in the Universe?

Counting the stars in the Universe is like trying to count the number of sand grains on a beach. We might do that by measuring the surface area of the beach, and figuring the average depth of the sand layer. If we count the number of grains in a small representative volume of sand, by multiplication we can estimate the number of grains on the whole beach. Likewise, for the Universe, the galaxies are our small representative volumes.

Our solar system is part of the Milky Way galaxy. The entire galaxy numbers about 100 billion stars. And beyond the Milky Way there are around 100 billion galaxies that are known to exist with many shapes and sizes.

Taking the Milky Way as an average galaxy, the total number of known stars in the universe would be (100 billion)2=(1011)2=1022. These estimated stars number 10,000,000,000,000,000,000,000, when we write this number out. This figure would be pronounced as “ten billion trillion” stars.

Further, new scientific technology continues to discover new heavenly bodies in God’s vast universe. What is even more amazing that God calls all the stars by name, and He keeps count of them (Psalms 147:4; Isaiah 40:26).

In His service,
BibleAsk Team

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