Raúl Alva

@alvagraul

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

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"‏@neiltyson A stunning thin crescent Moon graces the western skies this night...suspended in twilight"<From MxCty

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613 days ago

"‏ A stunning thin crescent Moon graces the western skies this night...suspended in twilight"<From MxCty

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