Origin of life
Some scientific theories:
- RNA world
- Autocatalytic sets
- Alexander Oparin's primoridal soup
- Zeolites: http://www-news.uchicago.edu/releases/98/980331.origin.of.life.shtml
- Astrobiology is a field that may shed light on the nature of life in general, instead of just life as we know it (on Earth), and may give clues as to how life orignates. http://www.accessexcellence.org/bioforum/bf02/awramik/bf02a1.html
See also: