Top Ten Unanswered Science Questions

What is the universe made of?

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It is an embarrassing fact that our scientists do not know what 95% of our universe is made up of. Everything that we see around us is made up of Atoms and barely accounts for 5% of the universe. In last 80 years the scientists have barely able to conclude that the remainder comprises of some dark matter and dark energy. The former was discovered in 1933 and it acts as invisible glue that binds and holds the galaxies and galaxies cluster together. The later was found in 1998 and it was observed that it is accelerating the universe expansion with tremendous speed.