Scientists find traces of sea plankton on ISS surface
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Scientists find traces of sea plankton on ISS surface
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Re: Scientists find traces of sea plankton on ISS surface
#2how is that possible?
Re: Scientists find traces of sea plankton on ISS surface
#3> “We are conducting special works to polish somehow and put illuminators in order. This is particularly needed during long space flights,” Solovyev added.
The whole article seems to be mangled by bad translation. It's difficult to tell what it is about.
Re: Scientists find traces of sea plankton on ISS surface
#4Panspermia?
Re: Scientists find traces of sea plankton on ISS surface
#5how is that possible?
Microorganisms are probably far less affected by vacuum than larger ones, as long as they can get some nutrients from time to time. And since most engines used in space produce plain water (and engines are fired frequently around the ISS), I think the only really difficult thing about the environment is radiation... and microorganisms might also be more resistant to this.
Re: Scientists find traces of sea plankton on ISS surface
#6It was probably blown up there by "uplifting air currents" according to : http://www.dailymail.co.uk/sciencetech/article-2728979/Never...
We have to keep in mind that, even at that altitude, there are still air molecules. They're extremely sparse, but just enough that the drag they induce on the ISS and its large surface area of solar panels make periodic boosting necessary.
Re: Scientists find traces of sea plankton on ISS surface
#7It was probably blown up there by "uplifting air currents" according to : http://www.dailymail.co.uk/sciencetech/article-2728979/Never... We have to keep in mind that, even at that altitude, there are still air molecules. They're extremely sparse, but just enough that the drag they induce on the ISS and its large surface area of solar panels make periodic boosting necessary.
And there must be enough to keep heavier particles lifted up that high.
Re: Scientists find traces of sea plankton on ISS surface
#8Panspermia?
No. The ISS isn't really that far from earth and there's a lot of exchange going on between earth and the ISS, mostly from all the various spacecraft we send up.
Re: Scientists find traces of sea plankton on ISS surface
#9how is that possible?
Microorganisms are probably far less affected by vacuum than larger ones, as long as they can get some nutrients from time to time. And since most engines used in space produce plain water (and engines are fired frequently around the ISS), I think the only really difficult thing about the environment is radiation... and microorganisms might also be more resistant to this.
It's almost vacuum up there, so the water from the engines is diluted and diluted and the microorganism can't get enough of it. Probably they are only not-dying there, like inside a big freezer without air, only waiting frozen. It's not clear than they are viable, and that if we put them in a good environment they will thrive. Perhaps they are only microcorpses.
Re: Scientists find traces of sea plankton on ISS surface
#10how is that possible?
Microorganisms are probably far less affected by vacuum than larger ones, as long as they can get some nutrients from time to time. And since most engines used in space produce plain water (and engines are fired frequently around the ISS), I think the only really difficult thing about the environment is radiation... and microorganisms might also be more resistant to this.
Tardigrades can endure some of the most extreme conditions, including the vacuum of space and solar radiation, and can go without food or water for more than 10 years: http://en.wikipedia.org/wiki/Tardigrade
Not the same as plankton, but still quite interesting, I think!