Cause of Cambrian Explosion - Terrestrial or Cosmic? --- https://www.panspermia.org/causeofcambrianexplosion.pdf

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Cause of Cambrian Explosion - Terrestrial or Cosmic?

“T.V. Grebennikova et al (2018) have now confirmed the discovery of several microbial species associated with cosmic dust on the exterior windows of the International Space Station (ISS), and contamination at source and in the laboratory has been ruled out.
The results of PCR amplification followed by DNA sequencing and phylogenetic analysis have established the presence of bacteria of the genus Mycobacteria and the extremophile genus Delftia, amongst others, associated with deposits of cosmic dust, which are now from a height of some 400km above the Earth’s surface. A terrestrial origin seems most unlikely. Studies by Wickramasinghe and Rycroft (2018) have shown that all possible mechanisms for lofting these organisms against gravity to heights of 400km in the ionosphere fall short by many orders of magnitude.”

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Are they saying these microbes are coming from the cosmic dust in space? I’m just asking, because that’s actually a huge deal. The admission is so casual that I feel like I must be misunderstanding.

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https://infogalactic.com/info/Chandra_Wickramasinghe

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Vindication of Cosmic Biology

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Thanks Peter! Great stuff. I’ll take that as a yes.

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#8

Consider the Mimivirus, one of the countless such life-bearers tumbling for billions of years across intergalactic & galactic space. Polyhedral geometry, radiation hardened, near immortal lifespan. Until they tumble down upon the surface of a Goldilocks planet & spawn life: Panspermia.
It is one of the late Sir Fred Hoyle’s favourite examples of Panspermia.

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#9

" Mimi -like all viruses- looks like some kind of crystal. It doesn’t look baggy, like a cell or bacterium. It looks like something that has arranged its structure according to neat architectural principles. Its head is an icosohedron, multi-faceted, like a well-cut gemstone. It looks well-ordered, disciplined.

And it is. Unlike other viruses, it has a genome that is a model of restraint. Where most viruses have a headful of “junk” DNA that seems to serve no purpose, most of Mimivirus’s genes perform well-defined tasks. And what tasks. There are genes, for example, that encode for the instruction and apparatus for making proteins. This violates biological dogma straightaway; viruses are supposed to let their hosts make the proteins. Some of the protein-making apparatus in Mimivirus is exactly the same as you’d find in all the things we call “alive.” There are also genes for repairing and untangling DNA, for metabolizing sugars, and for protein folding -an essential step in the construction of life. The Marseille researchers found Mimivirus is the proud owner of a grand total of 1,262 genes. (The typical virus has 100 or so but only uses around 10.) Scientists had never seen somewhere near half of them before, which has the Marseille researchers excited. However it is the ones they had *seen before that are causing the most fuss."

– Dr Michael Brooks, New Scientist consultant

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All of this stuff is great! Thanks. I’ll definitely be referring back to this.