Science and Technology

Check out the list of unsolved mysteries of the universe https://en.wikipedia.org/wiki/Lists_of_unsolved_problems

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Some unsolved mysteries are listed below:

. What is the universe made of? ...
. How did life begin? ...
. Are we alone in the universe? ...
. What makes us human? ...
. What is consciousness? ...
. Why do we dream? ...
. Why is there stuff? ...
. Are there other universes?
. How are genes, cancer and luck linked?
. What is the nature of time?