Raúl Alva

@alvagraul

Dr Ciencias, Mtro Biología Experimental, Lic Biología UAM, Dipl Educación CIPAE, Dipl Aprendizaje con Tecnologías Digitales MIT, Dipl Riesgo Ambiental INE

@carolynporco , Carl #Sagan & @NASAVoyager team members. #SaganDay

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725 days ago

, Carl #Sagan & team members. #SaganDay

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alvagraul 360 days ago

"Space exploration is going to other worlds" #CarlSaganDay