The Threat From Life on Mars 469
sweetshot97 writes "According to the UK site, Times Online; future trips to Mars that will have probes return with samples of the martian surface may contain deadly microbes of course, foreign to our world. The threat may be incurable bacterial infections we have no cure for. What's funny is that we may have even infected Mars with our own bacteria when we sent several probes there. "
Typical media scare (Score:4, Informative)
Until we actually find a single trace of life there this is all due to an overintake of Hollywood crap.
Re:I have often wondered why it is... (Score:1, Informative)
Also, as much as I enjoy Orson Welles, you should call it H.G. Wells' War of the Worlds if you're talking about the story.
Re:Odds Are Against It (Score:5, Informative)
If anything microbial survives on Mars, it would most likely thrive in out environment.
there's pretty much (Score:4, Informative)
One of the main problems now is the lack of funds for such programs, esp for probes we send out of Earth. On the other hand, any probe returning from Mars will be heavily guaranteed - not just for safety reasons but for scientific ones as well.
BTW, the chances of Martian life surviving on Earth is going to be close to nil since the reducing atmosphere will oxidize anything that hasn't already had a few billion years evolutionary head start to protect themselves from it. [Yes, I know it won't be zero.] And Mars doesn't look like it had enough oxygen in it's atmosphere to effect evolution anytime in it's history.
Ciao
Re:I have often wondered why it is... (Score:1, Informative)
Re:Odds Are Against It (Score:3, Informative)
It's kind of like those bacteria and tube worms [noaa.gov] thriving on the ocean floor in sulfuric acid at 300C. Drop their temperature below 150C, and they die.
*If* there were anything living on Mars in the first place, it would die long before we ever knew it got here.
But hey, anything to keep us safe from the Martian threat. Somebody's been watching too many bad scifi movies [ram.org].
Re:Move along, move along (Score:5, Informative)
All in all though, the idea that a bacteria would cause a incurable disease is at the extremly long end of near insane thoughts. Any foreign bacteria would not be adapted to our natural defences against diseases, let alone some of our more complex immune system responses. And as others have pointed out, this completly forgets about that as I also pointed out above, that bacteria can and would have survived the trip from mars to earth.
Quickshot
Re:Odds Are Against It (Score:1, Informative)
Re:Andromeda Strain (Score:5, Informative)
In advance of the book's publication, Crichton has written the cover story in today's Parade [parade.com] (Sunday magazine supplement in many US newspapers) giving several examples of such exaggerated predictions.
Re:Life May Have Originated on Mars (Score:4, Informative)
NASA said that after two years of study "a number of lines of evidence have gone away". Several different chemicals and molecular structures were exciting because they looked similar to byproducts of life on Earth. However, these chemicals and structures can also be created without life. Some are even present in deep space on comets, and scientists do not think that they came from Martian life anymore.
Re:If only 'twere true... (Score:2, Informative)
Invasive, non-native crops or fish represent the relatively benign example. Native American deaths due to European disease would be at the other end.
Martian plague might be unlikely, but the chances certainly aren't non-zero.
Re:Odds Are Against It (Score:5, Informative)
More to the original poster, they do not 'cyst'. The reason that you can't cook prions to death is because they aren't alive in the first place. By the time you heat a prion to the point where it isn't a prion, your meat isn't meat anymore. Even the dog won't eat it.
A.
Re:Odds Are Against It (Score:4, Informative)
Re:MY GOD! (Score:5, Informative)
This is a fork bomb. The first part is a decoy, but look at the last portion:
It creates a function called : which takes no parameters (). The function creates a copy of itself and forks into the background with :&. Then, immediately after the function declaration :(){...}; it calls itself with :. There's a better one where the "payload" of the function is :| :&, which pipes one into the other and forks into the background...
Re:If only 'twere true... (Score:2, Informative)
the article that this thread is referencing does not say that infection is likely
Re:Viking Landers were "boiled", Pathfinder was no (Score:2, Informative)
Re:A bit of economics (Score:1, Informative)
2) Without incredibly cheap goods (and this now includes just about anything we can buy here) made cheap thanks to slave labor in the free trade zones of China, the price of just about everything we buy would go up in the US -- significantly in most cases. The worst thing that can happen to an economy (worse than recession) is inflation. The price of stuff going up uncontrollably would be disastrous to our limping economy.
I'd wager that China would have a heck of an easier time living without the US than the US would trying to live without China at this point. Heck, they're *our* creditors (how did this happen? Floored me when I found out. They lend *us* money to keep the lights on.). In isn't the 1950's anymore, and the world's changed (and changing).
Back on topic (and in reply to the GP), I still don't understand the mentality that decries the pittance (in relative terms) that is spent by the US on space compared to (say) the DOD. This is especially worrisome given that a technological edge is one of the sources of wealth for the US (and has been the entire time the US has been "at the top").
Besides, whatever happened to the pursuit of knowledge as its own end? A little curiosity or sense of wonder? I guess we're too busy watching reality TV and going to the mall to care about stuff like that. And in the meantime, while we sit getting fat on our shiny inexpensive Chinese furniture, the Chinese are positioned as a country that lends the US money. Incredible.
Re:Odds Are Against It (Score:2, Informative)
Respiration
Sensitivity
Nutrition
Excretion
Reproduction
Growth
Re:Rumsfeldian poetry (Score:2, Informative)
Re:Odds Are Against It (Score:3, Informative)
One thing everyone seems to be forgetting about our environment is that Earth's atmosphere is filled with deadly poison Martian microbes haven't been in contact with for billions of years, if ever - Oxygen.
Anaerobic bacteria don't tend to have very good lifetime estimates when exposed to oxygen.