|Last: 14. The Big Bang||Next: 16. Review|
|Ch. 14-1||Our planet is special to us, but is not unique in its possibilities for life|
|Ch. 14-2||The Drake equation predicts how many civilizations are in the Milky Way|
|Ch. 14-3||SETI uses radio telescopes|
|Ch. 14-4||Humans have been sending signals into space for more than a century|
General information on NASA's research into the origin, evolution, distribution, and possible fate of life in the Universe.
Describes life-forms in unusual terrestrial environments. Note especially the pages on life deep underground.
Extensive discussion of evidence for and against fossil microbacterial life in a meteorite from Mars.
NASA pages describing ideas for interstellar travel via antimatter rockets, `warp drives', wormholes, and the like. Entertaining speculations, but as Edward Purcell once remarked, `All this stuff about traveling around the universe in space suits ... belongs back where it came from, on the cereal box.'
Readable and up-to-date articles on the Search for Extra-Terrestrial Intelligence (SETI).
You (and your computer) can participate in a search for signals from extraterrestrial civilizations by downloading and running the SETI@home screensaver software. SETI@home also has a good set of links to other SETI sites.
Quiz 14: Ask A Question, given 12/06.
Last modified: December 3, 2001