Comment Cosmic DNA? (Score 3, Informative) 47
Space dust may store information as a double helix.
A new computer simulation shows that dust immersed in ionized gas (i.e., dusty plasmas) can organize itself into double helixes. The simulations suggested that under conditions commonly found in space, the dust particles first form a cylindrical structure that sometimes evolved into helical structures. Along some spirals, the radius of the helix was seen to change abruptly from one value to another and then back again, providing a mechanism for storing information in terms of the length and radius of a section of a spiral.