Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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German chemists made a replica of a trophy the size of one molecule.
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For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
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Most dust particles in your house are made from dead skin!
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Out of all the senses, smell is most closely linked to memory.
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
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