"The universe is a pretty big place.

If it's just us, seems like

an awful waste of space."
Carl Sagan





 -  About Carl Sagan



 -  Galileo - To Launch or Not To Launch?



 -  Global Atmospheric Consequences of Nuclear War


 -  Misión Espacial Galileo - ¿Para Lanzar o No Lanzar?


 -  Planetary Engineering


 -  Planetary Engineering on Mars


 -  Planet Venus - Recent Observations Shed Light on Atmosphere, Surface, and possible Biology of Nearest...


 -  The Nuclear Winter



Additional Information


 -  A Disturbing 1995 Prediction by Carl Sagan Accurately Describes America of Today

 -  A Search for Life on Earth from the Galileo Spacecraft


 -  Carl Sagan Co-Founder of SETI Knew that "UFOs Were Real"


 -  Carl Sagan, Erich Von Däniken y la Teoría de Los Antiguos Astronautas


 -  Carl Sagan's Close Colleague Blows the Lid on Sagan's Involvement in the Extraterrestrial Cover-Up


 -  Carl Sagan tenía Razón - Los Astrónomos Confirman que Estamos Hechos de Polvo de Estrellas


 -  Confirmed - We Really are 'Star Stuff'


 -  Gli Umani sono Fatti di Particelle provenienti da Lontane Galassie - Siamo i Visitatori Extragalattici della Via...


 -  Humans are Made of Particles from Distant Galaxies - We are Extragalactic Visitors in the Milky Way


 -  In 1974 Carl Sagan Sent this Message into Space - In 2001 we Received this Response


 -  The Chilbolton Crop Glyphs - A Message Finally Received - In Answer to Carl Sagan?




 -  Contact



 -  Contacto


 -  Cosmos


 -  Dragons of Eden - Speculations on The Evolution of Human Intelligence


 -  El Cerebro de Broca



 -  El Mundo y Sus Demonios



 -  Miles de Millones


 -  The Demon-Haunted World - Science as a Candle in the Dark




 -  Cosmos - A Personal Voyage - Carl Sagan (English)

 - "Cosmos" - de Carl Sagan (Español)


 -  Ese Pequeño Punto Azul Palido - The Pale Blue Dot - Carl Sagan

 -  Pale Blue Dot - Humility

 - "We Are Here - The Pale Blue Dot" - Carl Sagan famous speech