Ali Di’s Reviews > Alone but Not Lonely: Exploring for Extraterrestrial Life > Status Update

Ali Di
Ali Di is on page 122 of 162
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The idea of sending a message into space goes back to before even the advent of communications technology.

Mathematician Friedrich Gauss proposed in 1820 to create a right triangle of cleared trees in the Siberian forest that could possibly be seen by beings on another planet.

In the 1840s, astronomer Joseph Johann Littrow suggested doing something similar by lighting huge fires in trenches in the Sahara.
Sep 12, 2023 12:01PM
Alone but Not Lonely: Exploring for Extraterrestrial Life

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Ali Di
Ali Di is on page 10 of 162
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The mystery of space has permeated human inquiry since we first looked up.

And being the tenacious, curious creatures we are, we explored. trough observation - recognizing movement and paterns - we calculated and sorted possibilities of what might make up the heavens that was consistent with the multitude of observations.

The questions about extraterrestrial life have been with us for all human history.
Sep 10, 2023 11:39PM
Alone but Not Lonely: Exploring for Extraterrestrial Life


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