David Meyer on Nostr: Born #onthisday in 1934, Carl Sagan was an American astronomer and science ...
Born #onthisday in 1934, Carl Sagan was an American astronomer and science communicator.
Sagan is probably best known for his scientific contributions to the search for and possibility of extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. He assembled the first physical messages sent into space, the Pioneer plaque and the Voyager Golden Record, which were universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. He argued in favor of the hypothesis, which has since been accepted, that the high surface temperatures of Venus are the result of the greenhouse effect.
[Image credit:
]
References
--------------
[1] "Carl Sagan",
https://en.wikipedia.org/wiki/Carl_Sagan[2] "Carl Sagan - Cosmos - Eratosthenes",
https://www.youtube.com/watch?v=G8cbIWMv0rI#carlsagan #astronomy #extraterrestriallife #greenhousegases
Published at
2024-11-09 15:24:45Event JSON
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