Sunday, October 05, 2014

5 Oct - Netvibes I

Comparison between the red supergiant Antares ...
Comparison between the red supergiant Antares and the Sun, shown as the tiny dot toward the upper right. The black circle is the size of the orbit of Mars. Arcturus is also included in the picture for size comparison (Photo credit: Wikipedia)
English: The Arecibo message as sent 1974 from...
English: The Arecibo message as sent 1974 from the Arecibo Observatory. Français : Le message Arecibo, envoyé en 1974 depuis l'Observatoire Arecibo. Deutsch: Das Arecibo-Signal, das im Jahr 1974 vom Arecibo Observatorium gesendet wurde. Español: El mensaje de Arecibo enviado en 1974 desde el Observatorio de Arecibo. (Photo credit: Wikipedia)
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