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El profesor Stephen Hawking da un discurso llamado "'Why We Should Go Into Space' (Por qué deberíamos ir al espacio) en la Universidad George Washington, Washington, DC, el 21 de abril de 2008. EPA-EFE/STEFAN ZAKLIN

Advocacy

Farewell to a Genius

He died peacefully at his home in Cambridge in the early hours of Wednesday, his family confirmed.