Silicon based bugs

Scientists discover the first silicon-based life forms … in their imagination!

by John G. Hartnett and


Figure 1: An imaginative artist rendering of organosilicon-based life. Credit: Lei Chen and Yan Liang ( for Caltech.

Recent research from the laboratory of Frances Arnold shows, for the first time, that bacteria can be made to create organosilicon compounds.1 Of course, this does not prove that silicon- or organosilicon-based life is possible, but according to contributor Charles Q. Choi it “shows that life could be persuaded to incorporate silicon into its basic components”.

Carbon is the backbone of the most important biological molecules, including DNA, RNA, proteins, fats, sugars, hormones, etc. Even calcium-rich bones are formed on a carbon-based protein scaffold. Life on Earth is based exclusively on carbon. The chemistry of carbon permits it to form the long-chain molecules, which serve as the basis for life.

It is common for the evolutionists to argue it was only a coincidence that life is based on carbon because of the abundance of carbon in our environment. As a side note, we would be tempted to wager that life based on any other element in the periodic table will not be found in our lifetimes. We could make that forever, but it would be hard to pay up or collect the winnings long after we are dead.

Evolutionary scientists have speculated that a different form of life could have spontaneously appeared on other space bodies—on Titan for example.2 Because it seems that Titan has lakes of liquid hydrocarbons, not water, and possibly complex molecules could collect on the bottom of those lakes, which could, with a spark from some cosmic rays, create the equivalent of life’s chemistry on Earth. Of course, this runs afoul of all the known laws of chemistry, probability, and information theory, and it is a further stretch to believe the supposed Titanian life might be based on silicon instead of carbon. Continue reading