Panspermia, definition and study. A-Z index of Cognitio.

Panspermia is a hypothesis that suggests that the seeds of life (in the sense figuratively figured) are scattered throughout the universe, and that life on Earth began with the arrival of said seeds and their development. It is implied that this can also happen on many other planets. By extension, seeds could also be considered as simple organic molecules. There are some evidence suggesting that bacteria can survive for long periods of time even in deep space (and could therefore be the mechanism of pancreatitis).

Cosmic space, definition and study. A-Z index of Cognitio.

Cosmic space

Recent studies conducted in India have found bacteria in the Earth’s atmosphere at heights greater than 40 km where their mixing with the lower layers of the atmosphere is unlikely.

Atmosphere, definition and study. A-Z index of Cognitio.


Mito Streptococcus Bacters, which were accidentally taken to the Moon from Surveyor 3 Space Probe in 1967, could easily be returned after being taken back to Earth after 31 months.

Evidence that suggests data in favor of Panspermia:

  • The very rapid appearance of life on Earth shown by fossils: the first evidence of life are fossilized of stromatolites, aggregated with bacteria, dated to 3.8 billion years. Only 500 million years after the formation of the oldest known rocks. According to some planetary training models, it is almost too early for the Earth to have cooled sufficiently to accommodate liquid water.
  • More complex bacteria and organisms were found in more extreme environments than could be expected: for example in abysmal fumaroles. Some estrogen bacteria live at temperatures above 100 ° C, others in very caustic environments.
  • Bacteria that do not use photosynthesis to generate energy. In particular, endolytic bacteria using chemo-synthesis found in rocks and underground lakes.
  • Semi-dumb bacteria found in ice carrots took more than a mile below the surface of the anthrax, which show how bacteria could survive on icy bodies like comets.
  • The ambiguous results of the biological tests of Viking probes. These tests were carried out to find the results of the metabolism of any Martian bacteria by feeding soil samples with radioactive gas (to mark the results of the metabolism), and comparing them with other soil samples heated to very high temperatures that would kill all forms of life. The tests showed activities that could be a sign of life, but NASA’s official interpretation was that the effects were chemical rather than biological, and were attributed to a high reactivity of the Martian soil.
  • The discovery of glycine (the simplest amino acid), apparently shaped spontaneously, in interstellar clouds.
  • Analysis of the meteorite known as ALH 84001, generally thought to originate in Mars, revealed the presence of artifacts possibly caused by Martian bacteria. This interpretation has been subject to harsh discussions.
  • Bacteria adapted to the stratosphere environment, discovered in March 2009.
  • Some consider Panspermia as a response to those who argue that it is impossible for life to originate spontaneously. Panspermia, however, does not solve the problem, simply moves it further back into space and time. Some extend Panspermia to argue that life has never evolved from inorganic molecules, but it has existed for as long as the latter existed.

For a long time, it was attempted to synthesize in the laboratory an elementary form that could be self-produced but, despite the euphoria following the early work of a scientist who had obtained many organic compounds from a mixture of inorganic gases under various forms of energy, progress has not been many, it has come to synthesis of nucleic acids, but it is far from achieving the purpose of these experiments. This has led many researchers to think, on the basis of the extreme complexity of even the simplest essential components of a living cell, that such a random combination of chemical elements is unlikely to repeat itself in the life of the universe. This form of geocentric, which places Earth at the center of the living universe, conflicts with the opinion of those (many) who see the Earth as a lost body in space. The need to reconcile the two ideas has begun to examine the old theory of Panspermia, due to Arrhenius, which allows to overcome the inconsistency between the unlikely spontaneous formation of life in two different places and the need not to be assigned to the Earth a unique role in the universe. Arrhenius states that life has formed anywhere, and it has spread to any point in the Galaxy.

Galaxy, definition and study. A-Z index of Cognitio.


For if we assume that life is formed on Earth, some vital forms such as spores and bacteria can be transported to the higher layers of the atmosphere where they are exposed to the pressure of solar radiation, which tends to disperse them in space . Sincerely, I’m also convinced that this is a very trustworthy theory.

Panspermia, definition and study. A-Z index of Cognitio.



To open the video  click on the image, good view from your Alessandro Brizzi.

Panspermia, definition and study. A-Z index of Cognitio.