Scientists Cannot Solve These 10 Mysteries...

VOICE OVER: Peter DeGiglio

These unsolved mysteries continue to perplex humanity's best and brightest. Welcome to WatchMojo, and today we're looking at the biggest mysteries scientists are still trying to solve. Our countdown of unsolved scientific mysteries includes Why Do We Sleep?, Why is There More Matter Than Antimatter?, What is Dark Energy?, and more!

• #11: How Does the Environment Influence Genes?
• #10: Why Do We Sleep?
• #9: What is Ball Lightning?
• #8: How Did Life on Earth Begin?
• #7: What's the Oldest Possible Age for a Human?
• #6: Why is There More Matter Than Antimatter?
• #5: What Causes Alzheimer's?
• #4: What is Dark Matter?
• #3: What is Dark Energy?
• #2: Are We Alone in the Universe?

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