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.

Read Full Biography

Carl Sagan Poems

Read All Poems

Top 10 most used topics by Carl Sagan

Carl Sagan Quotes

Read All Quotes

Comments about Carl Sagan

  • Tilaurin: kinda torn between hoping this is covid and "oh crap what other malarky bullshit is trying to flatten me". been years since anything hit me like this. last time i had a flu i kept fading in and out of consciousness while watching cosmos, woke up and thought carl sagan was here.
  • Alfredodecandi1: valaafshar: think of the rivers of blood spilled by all those generals and emperors so that in glory and in triumph they could become the 'momentary' masters of a 'fraction' of a 'dot'. —carl sagan (7.9 billion people live on this dot - view of earth fr…
  • Patchlimb: ‘quote of the day’: boozebambling “one of the saddest lessons of history is this: if we’ve been bamboozled long enough, we tend to reject any evidence of the bamboozle. we’re no longer interested in finding out the truth.” - carl sagan
  • Jaiagreen: here is the "pale blue dot" passage read by carl sagan himself.
  • Jonteemoty: "one glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. to read is to voyage through time." ~ carl sagan
Read All Comments

Write your comment about Carl Sagan

Poem of the day

Emily Dickinson Poem
How lonesome the Wind must feel Nights'
 by Emily Dickinson


How lonesome the Wind must feel Nights-
When people have put out the Lights
And everything that has an Inn
Closes the shutter and goes in-

How pompous the Wind must feel Noons

Read complete poem

Popular Poets