Who is Carl Sagan

Carl Edward Sagan (/ˈseɪɡən/; November 9, 1934 – December 20, 1996) was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, poet, and science communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the now-accepted hypothesis that the high surface temperatures of Venus can be attributed to and calculated using the greenhouse effect.

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Comments about Carl Sagan

  • Gianticecube: when i thought president, carl sagan would show
  • Ogrady_texas: carl sagan was a brilliant skeptic -
  • Ffrf: we at ffrf will admit it: we’re thrilled when we see the freethought perspective in the media — and there were a number of such instances this week. read our weekly wrap here:
  • Gianticecube: it used to tell on carl sagan
  • Kelvinredd: imagination will often carry us to worlds that never were. but without it we go nowhere. ~carl sagan
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Poem of the day

Ella Wheeler Wilcox Poem
Upon The Sand
 by Ella Wheeler Wilcox

All love that has not friendship for its base,
Is like a mansion built upon the sand.
Though brave its walls as any in the land,
And its tall turrets lift their heads in grace;
Though skillful and accomplished artists trace
Most beautiful designs on every hand,
And gleaming statues in dim niches stand,
And mountains play in some flow'r-hidden place:
...

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