This diversity is part of what makes ISME an interesting meeting. Not only the diversity of the participants’ background, but also the variety of topics: within the same day you can follow talks about forest soil, deep-sea vents, biogas plants or the human body.
Wednesday, August 29, 2012
Sunday, August 05, 2012
|Francis Crick. Photo Marc Lieberman|
Every biologist knows that Francis Crick is the co-discoverer of the structure of DNA. What is less known, probably, is the fact that Crick was a proponent of a theory that stands at the border of science, the theory of directed panspermia.
In 1973, Crick (together with chemist Leslie Orgel) published an article describing the theory, and in 1981 he dedicated a full book to directed panspermia, entitled Life itself.
According to Crick, the idea of panspermia – which means “seeds everywhere” – was proposed by the physicist Arrhenius at the end of the 19th century. Arrhenius suggested that life on Earth originated from space, that our world was seeded by spores of micro-organisms traveling between planets.
But because the radiations in space were thought to be too intense for the spores to survive, Crick and Orgel postulated a variant of the theory in which spores were transported by an interplanetary spaceship sent by an alien civilization!