Extraterrestrial Life

Extraterrestrial Life Links

Life in the Void A few short speculations on extrasolar life.
The Rise and Fall of Star Faring Civilizations in Our Own Galaxy Speculation, based on the Drake Equation, regarding the existence and composition of alien civilizations.
The Search for Extraterrestrial Life Scientific American article by Carl Sagan. Provides a layman's overview to the building blocks of life and current efforts in the search for extraterrestrial life.
Life Extraterrestrial: Life on Other Planets in the Solar System Curriculum framework for comparing Earth to other planets with regard to life.
Panspermia Revisited Short scientific article by John R. Gribbin. "Spreading of life-bearing spores across the Galaxy (panspermia) may be easier than is usually acknowledged."
The Drake Equation Describes the famous formula for estimating the number and character of alien civilizations within the galaxy. Includes an online form that calculates your numbers.
We Are Not Alone Essay on the probability of extraterrestrial life.
Cosmic Ancestry: The Modern Version of Panspermia The Cosmic Ancestry hypothesis - about which this site has a large amount of information - treats all of evolution, not just the origin of life on Earth, as due to interaction with cosmic microorganisms.
Strato's Space Center An overview of the possibilities of extraterrestrial life within the solar system.
The Planetary Society A nonprofit organization devoted to the exploration of the solar system and the search for extraterrestrial life.

Help build the largest human-edited directory on the web.