Opening a new topic because this is more relevant to Brown's Hydroplates and the flood than it is to fossils.....
That paper discusses a theory that diatoms could be ice nucleation sites IN THE TROPOSPHERE...and refers to diatoms being found on Antarctactic mountains (3km?) and collected by airplane from 1 km. One of their reports was of collection of diatoms from a 9m tower on a 55m cliff. That IN NO WAY addresses the collection of a diatom at 27km, nor does it address the OTHER item (the titanium-containing sphere which impacted the TOP of the collection plate AT HIGH SPEED and then oozed what appeared to be bio material) . So if you have some ACTUAL evidence that diatoms can travel to the stratosphere (except if there is a volcanic eruption a day or two before)...then let's hear it. Otherwise the balloon data is confirmation that these can arrive from space, and Brown's theory of the Flood is the best way to explain that.
BTW, I might expect you to suggest these came from an asteroid impact from 65mya which might have sent stuff from the ocean into orbit. However, the balloon object as well as the 2 meteorite falls in Sri Lanka came during COMETARY meteor showers...and no one I know of would say that any COMET could be caused by an asteroid strike.
There is no need to suggest extraordinary events such as Chicxulub impact or Brown's hydroplates.
Twenty-seven kilometers (about 87,700 feet) is hardly deep space. Thunderstorms can reach 75,000 feet (24.8 km) the SR-71 could fly at 80,000 feet (24.6 km) and I read today the U-2 aircraft can reach 90,000 feet (27.7 km).
Surface diatoms carried to high altitude makes a lot more sense than they were blasted to space from a major event.
Here is the report from August 2014 from TASS
Microorganisms could be found on the ISS surface thanks to high-precision equipment. “Results of the experiment are absolutely unique. We have found traces of sea plankton and microscopic particles on the illuminator surface. This should be studied further,” chief of the Russian ISS orbital mission Vladimir Solovyev said.
Again, no extraordinary explanations are necessary. From the article:
"some organisms can live on the surface of the International Space Station (ISS) for years amid factors of a space flight, such as zero gravity, temperature conditions and hard cosmic radiation. Several surveys proved that these organisms can even develop.....In reply to a question on how the ISS surface is contaminated now, the space specialist said that the ISS surface was polluted very strongly due to operation of space engines and other factors."
The ISS was assembled and serviced with materials hauled to orbit by the Space Shuttle. One of the Shuttle launch pads was within a couple hundred yards of the ocean and the other wasn't much farther. The article states these organisms can "develop" in the rigors of space. It further says the ISS surface was contaminated by various factors. It seems they have a pretty good idea where they think the contamination came from.
It's entirely possible these "sea plankton" hitched a ride to orbit on the Shuttle and were knocked loose by various factors during operations with the ISS with some of them attaching themselves to ISS surfaces.