Monday, December 15, 2008

Tardigrades update...


Back in October 2007, I blogged on an experiment involving putting tardigrades into space.

I've only just noticed that the results are in. Here are a few excerpts:

"...many of the tardigrades survived the trip in space, and a few of them became the first animals to return alive after exposure to both space vacuum and solar radiation."

"...the space vacuum and cosmic radiation did not affect their survival or reproduction at all. This was true for both Richtersius coronifer and Milnesium tardigradum. What this means is that these animals can either protect their cells from expected damage of the extremely dehydration impact of space vacuum, or that they can repair the damage."

"...our experiment gives rise to more questions than answers. How could these animals stand the extreme dehydration by space vacuum (at a pressure in the range of 0.00001 Pa compared to 100 000 Pa on Earth)? How could some of the tardigrades survive a dose of UV-A and UV-B of over 7000 kJ/sqm and still produce offspring? What molecular mechanisms are behind these remarkable achievements?..."
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5 comments:

BJMonkey said...

Tardises?
I thought the Tardis was DESIGNED to go through space?

zak said...

Not rlly the TARDIS was a means of going through time. Time And Relative Dimension(s) In Space. So I suppose you're HALF right. But u know make sure u get the WHOLE point across next time. *Nod*
But that wasnt its ONLY use. It was just a means of transport to go ANYWHERE, and allowed it to blend in to any environment, however it got stuck as a police-box.
Silly

brett jordan said...

*daddy waits with a strange sense of dread for his daughters' contributions to this debate*

soraneko said...

I still want one...

Or a David Tennant... he'd do, but he'd be trickier to put in a box and wrap up...

brett jordan said...

i'm sure mr tennant will be delighted with the comparison :-)

 
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