Some of the biggest riddles and unknowns facing scientists today are investigated in this fascinating documentary series on BBC Select.

Our existence doesn't really make sense. When the universe was created, matter and a substance called antimatter should have obliterated each other. But that didn't happen. If scientists can unravel the mysteries of antimatter, it could help us understand why there is life on this planet and possibly on planets elsewhere. But trying to study antimatter is a fiendishly difficult task.

Watch Science’s Greatest Mysteries and more acclaimed documentaries on BBC Select today: https://bit.ly/3Z43ncB

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