The average human body contains enough carbon to make about 900 pencils.
The average person has about 100,000 hairs on their head, and each hair has a lifespan of about 3-7 years.
The human nose can detect over 1 trillion different scents.
The sun is made up of about 70% hydrogen, 28% helium, and 2% other elements.
The surface of the moon is made up of fine, powdery dust called regolith, which was formed by the constant bombardment of meteoroids over years
The water on Earth is thought to have come from comets and asteroids that collided with the planet in its early history.
The universe is expanding at an accelerating rate, thanks to a mysterious force known as dark energy.
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