Traductions en contexte de directed panspermia en anglais-français avec Reverso Context.

Example of directed panspermia. We conclude that it is possible that life reached the earth in this way but that the scientific evidence is inadequate at the present. Panspermia hypotheses propose for example that microscopic life-forms that can survive the effects of space such as extremophiles can become trapped in debris ejected into space after collisions between planets and small Solar System bodies that harbor life. The former is the hypothesis that basic forms of life from other planets were spread to Earth and sparked the evolutionary process.

Molecular biologists are already well versed in manipulating DNA in simple organisms such as bacteria and viruses. Once again this idea can be further refined into two variants. Conversely active directed panspermia has been proposed to secure and expand life in space.

Exogenesis is the general idea that life originated somewhere other than Earth and then somehow migrated here. Many enzymes for example require this metal to act as a cofactor. Crick and Orgel totally ignore the question of the motivefor firing this hypothetical brace of missiles.

Therefore the authors propose the theory of Directed Panspermia where an intelligent civilization from another planet would intentionally infect the Earth with microorganisms by means of a special long-range unmanned spaceship. As an alternative to these nineteenth-century mechanisms we have considered Directed Panspermia the theory that organisms were deliberately transmitted to the earth by intelligent beings on another planet. The article however does not mention by what mechanisms the generation of complex organisms from the planted microorganisms would arise.

This place have 8 coloring page pictures about Directed Panspermia including paper sample paper example coloring page pictures coloring page sample Resume models Resume example Resume pictures and more. Directed panspermia thus appears to be an example of the logical fallacyof infinite regression and thus violative of Occams razor. One of these was the puzzling dependence of biological systems on molybdenum.

The spaceship would carry large samples of a number of microorganisms each having different but simple nutritional requirements for example blue-green algae which could grow on CO 2 and water in sunlight. We conclude that it is possible that life reached the earth in this way but that the scientific evidence is inadequate at the present time to say anything about the probability. Examples of more technical treatments would be Ashwini Kumar Lal Origin of Life Astrophysics Space Science 31734 June 2008.