More than 5,000 tons of extraterrestrial dust fall to Earth each year

Comet and asteroid dust — collectively known as micrometeorites — account for most of the extraterrestrial material that ends up on Earth; around 5,200 tons of it fall to the Earth annually. Researchers from the French National Centre for Scientific Research hope that this could lead to a better understanding of this extraterrestrial dust’s significance in bringing water and carbon to our planet during its early stages of development. Read full article here

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