ScienceCasts: el debut de los Estados Unidos en el espacio, Explorer 1

El 31 de enero de 1958, los Estados Unidos se unieron a la "carrera espacial" con el exitoso lanzamiento del satélite Explorer 1, que marcó el nacimiento de la ciencia espacial. Para saber más, visita Sitio de Explorer 1: Libro de Explorer 1: Haz clic aquí para ver más vídeos:

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