http://www.seti-inst.edu

SETI Institute Home Page

http://www.nap.edu/readingroom/books/planet_sci/contents/chap3.html

How Planetary Systems and Life Originate

http://zebu.uoregon.edu/51peg.html

The Discovery of a Planet Orbiting Around the Nearby Star 51 Pegasi

http://info.aoc.nrao.edu/doc/pr/press-1-17-96.html

Detecting Extrasolar Planets With Millimeter-Wave Observatories

http://www.pbs.org/wgbh/pages/nova/worlds/morrison.html

All Alone? (Or Not?)

http://www.hq.nasa.gov/office/pao/History/SP-4026/cover.html

The Problem of Space Travel

http://www.seti-inst.edu/

Search for Extraterrestrial Intelligence

http://www.reston.com/astro/bio.web.html

The Astrobiology Web

http://cmex-www.arc.nasa.gov/VikingCD/Puzzle/EvoLife.htm

The Origin and Evolution of Life

http://www.permanent.com/

Projects to Employ Resources of the Moon and Asteroids Near Earth in the Near Term

http://www.astro.psu.edu/users/pspm/arecibo/planets/planets.html

Pulsar Planets: Penn State

http://www.obspm.fr/encycl/encycl.html

Extrasolar Planets

http://www.physics.sfsu.edu/~gmarcy/planetsearch/planetsearch.html

San Francisco State University

http://www.gemini.edu/science/disks.html

Circumstellar Disks and Possible Planetary Systems

http://www.physics.sfsu.edu/~gmarcy/planetsearch/planetsearch.html

Planetary Searcher