10 Biggest Questions in Science

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1. What is the universe made of?

The age old question tops our list of 25 biggest question in science. We might believe that we know a lot but truthfully, we only know about 5% of the universe! Atoms only account for about 5% of the universe and the rest of 95% is a mystery. Studies are constantly underway to learn the true nature of what makes up our universe.

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