The approximate diameter of the Observable Universe is _____ billion light years.
93

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Solution

The correct option is A 93
The Observable Universe is the part of the whole Universe that we can currently see and study all of its galaxies, stars, and planetary systems.
It is estimated that the Observable Universe is about 93 billion light years in diameter, i.e. in kilometres, this number is $88$ with $22$ zeroes after it!

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The approximate diameter of the Observable Universe is _____ billion light years.93

The approximate diameter of the Observable Universe is _____ billion light years.
93