Who Goes There?: The Search for Intelligent Life in the UniverseExamines numerous theories about the origins of life on Earth and describes current attempts to transmit and receive messages from outer space. |
Contents
Chapter One Viking to Mars | 1 |
Chapter Two Where We Come From | 19 |
Chapter Three Chemistry and Life | 34 |
Copyright | |
9 other sections not shown
Common terms and phrases
advanced civilization amino acids antenna Arecibo Arecibo radio telescope astronomers atmosphere Barnard's star beacon believe billion binary Bracewell called Carl Sagan century chemical Däniken decades detect distance Drake Dyson Dyson sphere earth earthlike energy existence exobiology extraterrestrial civilizations extraterrestrial intelligence extraterrestrial signals FIGURE frequencies galactic galaxy human race hydrogen idea intelligent species interstellar travel Jupiter large number laser launched light-years listening program living organisms look Mars Martian soil meteorites microbes miles mission moon NASA nebulae O'Neill orbit organic molecules outer space oxygen picture planet planetary systems possible principle of mediocrity Project Cyclops Project Ozma proposed radiation radio signals radio telescope radio waves rocket scientific search for extraterrestrial SETI community solar system Soviet space colony spacecraft speed of light stellar sunlike stars surface terrestrial theory tion ufologists ufology universe Venus Viking scientists water hole