Seeds of life

Lithopanspermia the transport of the seeds of life by meteorites Radiopanspermia microbes are driven through space by radiation pressure The directed panspermia referred to above... 

The result was that only a small fraction (10-6) of the spores which had been subjected to space conditions without protection survived. The same was true for those which were protected by a quartz disk or covered by a thin layer of clay. However, the survival rate of the spores mixed with the protective materials listed above was about five orders of magnitude higher, while almost 100% of those in the small cube survived (Horneck et al., 2002a). This experiment suggests that small pieces of rock, only a few centimetres in diameter, could act as a transport medium between certain heavenly bodies. However, the classical panspermia hypothesis, involving seeds of life on grains of dust, must be completely unreal. 

Then the Seed of Life will arouse itself to Life, come to life again, sublimate or glorify, change itself into white, cleanse and sanctify itself, and give itself the redness, that is to transfigure itself and achieve permanence."... 

Figure 6 The Murchison meteorite which landed at Murchison, Australia on September 28, 1969. Over / 00 kilograms of this meteorite have been collected. Classified as a carbonaceous chondrite, type II (CM2), this meteorite is likely to have come from a comet. More than 92 different amino acids have been Identified within the Murchison meteorite, nineteen of these are also found on Earth such that many believe that such meteorites provided the seeds of life on the early Earth.

Four billion years ago the seeds of life had been firmly planted. The Archean Earth boasted substantial repositories of serviceable organic molecules, which became locally concentrated and assembled into vesicles and polymers of biological interest. Once the first molecular replicator emerged, molecular natural selection took off. In such a world, nascent biology and ancient geochemistry became inextricably entwined. For example, Earth s surface mineralogy diversified as a result of varied microbial influences, which altered ocean and atmospheric chemistries at scales from local to global (2). 

When considering how the evolution of life could have come about, the seeding of terrestrial life by extraterrestrial bacterial spores traveling through space (panspermia) deserves mention. Much is said about the possibility of some form of life on other planets, including Mars or more distant celestial bodies. Is it possible for some remnants of bacterial life, enclosed in a protective coat of rock dust, to have traveled enormous distances, staying dormant at the extremely low temperature of space and even surviving deadly radiation The spore may be neither alive nor completely dead, and even after billions of years it could have an infinitesimal chance to reach a planet where liquid water could restart its life. Is this science fiction or a real possibility We don t know. Around the turn of the twentieth century Svante Arrhenius (Nobel Prize in chemistry 1903) developed this theory in more detail. There was much recent excitement about claimed fossil bacterial remains in a Martian meteorite recovered from Antarctica (not since... 

Pollen Small particles of the male fertilizing seeds of plant life, which may cause various allergic reactions especially of the respiratory tract, known as hay fever. 

In addition to the sensitisation that occurs in the temperature range S2S°C to 850°C in many stainless steels, it is also possible for sensitisation to develop after long periods of use at lower temperatures. Such low temperature sensitisation is thought to be promoted by pre-seeding of the grain boundaries . Thus, the initial annealing procedure applied to a component may be very important with respect to its service life. 

There is no one correct theory for the origin of life on Earth or any habitable planet, although many have been presented. The current set of ideas is summarised in Figure 1.5. Aside from the theory of creation, which seems particularly hard to test, the testable theories of the origins of life divide into two extraterrestrial or panspermia, the theory that life was seeded everywhere somewhat randomly and terrestrial, that life originated de novo on Earth or other habitable planets around other stars. The theories of terrestrial origin are more favoured but the recent discovery of habitable planets and life within any solar system suddenly makes panspermia more likely. 

The interstellar medium is thus a chemically diverse medium fed nearly all of the chemical elements by supernova explosions. Conditions in the interstellar medium produce a cocktail of molecules that ultimately find themselves back on the surface of planets during the formation of the new star and solar system. Does the interstellar medium seed life with molecules from space The nature of interstellar medium chemistry might then add credibility to the formation of life in many places within the Universe and act as a panspermia model for the origins of life. 

The exponents of Alchemy identified the Qabalah as the sole key to their Hermetic Art by various pictorial devices. They often portrayed a pair of crossed keys over a tree growing inside the alchemical vessel, thereby signifying that, unless the Tree of Life was seeded and grew within practitioners, and the Qabalah was understood and actualized by the alchemist, the rest was in error and therefore, useless. Another symbol used to depict this was a fullgrown tree with a gold crown around its trunk just above the roots. The position of the crown on the tree coincides with... 

To each creature God gave its own seed, wherewith to propagate its kind, that in this way there might always be an increase of men and animals, plants and metals. Man was not to be able to produce new seed he was only permitted to educe new forms of life out of that which already existed. The creating of seed God reserved to Himself For if man could create seed he would be equal to the Creator. 

No objection can he raised to this interpretation, as long as we are ignorant of the phenomena of oxidation, and the reduction of oxides by means of carbon, or organic substances rich in carbon, such as sugar, flour, seeds, etc. Grains of wheat were the symbol of life, and, by extension, of the resurrection and eternal life. 

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