Comets

in hive-195635 •  4 years ago 

Comets are leftovers from the creation of our solar system about 4.5 billion years ago – they consist of sand, ice and carbon dioxide.

Sourse https://www.natgeokids.com/uk/discover/science/space/ten-facts-about-space/

hive-195635 universe comets year solar system
4 years ago by

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