 Pseudo-panspermia (sometimes called soft panspermia, molecular panspermia or quasi-panspermia) proposes that the organic molecules used for life originated in space and were incorporated in the solar nebula, from which the planets condensed and were further—and continuously—distributed to planetary surfaces where life then emerged (abiogenesis).From the early 1970s it was becoming evident that interstellar dust consisted of a large component of organic molecules.The first suggestion came from Chandra Wickramasinghe, who proposed a polymeric composition based on the molecule formaldehyde (CH2O).