Raúl Alva

@alvagraul

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

Science chat of Carl #Sagan with elementary school kids in Cosmos' Backbone of Night Chapter. #SaganDay

Views 108

727 days ago

Science chat of Carl #Sagan with elementary school kids in Cosmos' Backbone of Night Chapter. #SaganDay

1 Comment

Realtime comments disabled

alvagraul 362 days ago

Scientist, science writer & popularizer, teacher, activist. #CarlSaganDay