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Comets Questions

Could we divert a comet from impacting the earth?
Did life come from a comet?
Did water come from comets?
Is this object Nemesis or Niburu?
What are shooting stars?
What features does a comet have?
What is a comet made of?
What is Halley's comet?
What role did comets play in bringing resources to earth?

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Category: astronomy