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Scientists find traces of sea plankton on ISS surface

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11–20 of 35 posts

Re: Scientists find traces of sea plankton on ISS surface

#11
post #6

It 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.

So they also survived an impact with the orbitting station at 9 km/s? I don't think so.

Re: Scientists find traces of sea plankton on ISS surface

#12
post #11
post #6

It 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.

So they also survived an impact with the orbitting station at 9 km/s? I don't think so.

They don't have to survive for you to find traces.

Re: Scientists find traces of sea plankton on ISS surface

#13
post #6

It 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.

This may well be the reason, however keep in mind that the daily mail is generally held to be less reliable a source than throwing darts at a dictionary.

Re: Scientists find traces of sea plankton on ISS surface

#14
post #11

Earlier quoted context omitted.

So they also survived an impact with the orbitting station at 9 km/s? I don't think so.

They don't have to survive for you to find traces .

The article is unclear whether these organisms are alive or not.

> Results of the scope of scientific experiments which had been conducted for a quite long time were summed up in the previous year, confirming that 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.

Re: Scientists find traces of sea plankton on ISS surface

#15
post #14

Earlier quoted context omitted.

They don't have to survive for you to find traces .

The article is unclear whether these organisms are alive or not. > Results of the scope of scientific experiments which had been conducted for a quite long time were summed up in the previous year, confirming that 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 surv…

Unlikely to be alive

Re: Scientists find traces of sea plankton on ISS surface

#16
This reminds me of a little theory in microbiology, that is that every species exists in every place. For example, if you were to build an alkaline lake in the middle of nowhere (where no alkaline lakes exists), it wouldn't take long before specific species of bacteria would colonize that lake.

Re: Scientists find traces of sea plankton on ISS surface

#17
post #14

Earlier quoted context omitted.

They don't have to survive for you to find traces .

The article is unclear whether these organisms are alive or not. > Results of the scope of scientific experiments which had been conducted for a quite long time were summed up in the previous year, confirming that 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 surv…

So basically the Earth is a life-covered rock that spits organisms to hundreds of kilometers from its surface. This is just awesome!

Re: Scientists find traces of sea plankton on ISS surface

#18
post #6

It 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.

Would the moon ever need a "boost"? Even though it's probably not hitting any air molecules from Earth, it's still colliding with tons of space debris a day.

Re: Scientists find traces of sea plankton on ISS surface

#19
post #6

It 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.

Would the moon ever need a "boost"? Even though it's probably not hitting any air molecules from Earth, it's still colliding with tons of space debris a day.

The moon is actually moving away from the earth.

Re: Scientists find traces of sea plankton on ISS surface

#20
Apollo 12 retrieved a Surveyor 3 camera that had been on the Moon for over two years and contained Streptococcus mitis bacteria that survived in a dormant state and were recultured back on Earth. Pete Conrad, Apollo 12 commander, said, "I always thought the most significant thing that we ever found on the whole...Moon was that little bacteria who came back and lived and nobody ever said [anything] about it."
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