What If Earth Has an Identical Twin?
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VOICE OVER: Noah Baum
WRITTEN BY: Alex Slade
For scientists and astronomers scanning the skies for signs of alien life, it's the holy grail of all discoveries - a duplicate Earth. A planet capable of harbouring life, evolution and a potential destination for the future of humankind. But how would such a discovery change our own lives? What would happen if Earth had an identical twin?
