How many stars are there in the whole universe?
Answer / Sangeeta Singh
There are an estimated 1-2 trillion galaxies in the universe, each containing millions to billions of stars.
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What is the part of the sun that we can see without any instruments?
Which are the first soviet us space mission to moon?
When was the first american manned space mission to moon begun?
Explain how big is venus?
How old is our earth?
Is there water in moon rock?
The time taken by aryabhatta for one revolution around the earth?
What substance is responsible for neptunes blue-green color?
The hydrogen envelope that surrounds the comets nucleus derives its hydrogen most directly from?
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