1. There is a great deal about abiogenesis that is unknown, but investigating the unknown is what science is for. Speculation is part of the process. As long as the speculations can be tested, they are scientific. Much scientific work has been done in testing different hypotheses relating to abiogenesis, including the following:
* research into the formation of long proteins (Ferris et al. 1996; Orgel 1998; Rode et al. 1999);
* synthesis of complex molecules in space (Kuzicheva and Gontareva 1999; Schueller 1998; see also: "UV would have destroyed early molecules".);
* research into molecule formation in different atmospheres; and
* synthesis of constituents in the iron-sulfur world around hydrothermal vents (Cody et al. 2000; Russell and Hall 1997).
2. See also the references and suggested readings with Primitive cells are too complex, Abiogenesis experiments assume a reducing atmosphere, DNA needs proteins to form, proteins need DNA, Amino acids are left-handed,
References:
1. Cody, G. D. et al. 2000. Primordial carbonylated iron-sulfur compounds and the synthesis of pyruvate. Science 289: 1337-1340. See also Wächtershäuser, 2000 (below).
2. Ferris, J. P., A. R. Hill Jr., R. Liu and L. E. Orgel. 1996. Synthesis of long prebiotic oligomers on mineral surfaces. Nature 381: 59-61.
3. Kuzicheva, E. A. and N. B. Gontareva. 1999. The possibility of nucleotide abiogenetic synthesis in conditions of 'KOSMOS-2044' satellite space flight. Advances in Space Research 23(2): 393-396.
4. Orgel, L. E. 1998. Polymerization on the rocks: theoretical introduction. Origins of Life and Evolution of the Biosphere 28: 227-34.
5. Rode, B. M., H. L. Son and Y. Suwannachot. 1999. The combination of salt induced peptide formation reaction and clay catalysis: a way to higher peptides under primitive earth conditions. Origins of Life and Evolution of the Biosphere 29: 273-86.
6. Russell, M. J. and A. J. Hall. 1997. The emergence of life from iron monosulphide bubbles at a submarine hydrothermal redox and pH front. Journal of the Geological Society of London 154: 377-402.
http://www.gla.ac.uk/Project/originoflife/html/2001/pdf_articles.htm
7. Schueller, Gretel. 1998. Stuff of life. New Scientist 159(2151) (12 Sep.): 31-35,
http://www.newscientist.com/hottopics/astrobiology/stuffof.jsp