Asteroids: Bringers Of Doom or Givers Of Life? | How The Universe Works 

From icy worlds with more fresh water than Earth to flying mountains of pure metal, asteroids shaped our past and promise much for the future. Could these enigmatic space rocks hold the key to how life in universe arises and is extinguished?
How The Universe Works reveals our grand understanding of the universe using the latest research, the most compelling experts, and the best graphics to continue our exploration of the mysteries of the universe.
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