backtop


Print 64 comment(s) - last by CollegeTechGuy.. on Jul 2 at 3:16 PM


Panorama image of crater on Mars  (Source: NASA)
Scientists gleefully report that the Martian soil is able to support life

NASA scientists working the Phoenix Mars Lander mission believe the soil in Mars could support life, but will continue to gather evidence to be entirely sure.  


Using the lander, scientists discovered the Martian soil is more alkaline than they initially expected before landing on the Red Planet.  The discovery made them "flabbergasted," with findings made after a wet chemistry experiment was made by Phoenix on Wednesday.

Phoenix's robotic arm collected a cubic centimeter of Martian soil just one inch below the surface.  Once inside of Phoenix, it was mixed with Earth water and heated in an oven.

"We basically have found what appears to be the requirements, the nutrients, to support life whether past present or future," said Sam Kounaves, project lead chemist who works at the University of Arizona.

The soil is "very friendly" and "it is the type of soil you would probably have in your back yard, you know, alkaline," Kounaves said.  "You might be able to grow asparagus in it really well ... It is very exciting for us."

The preliminary results show the alkaline soil has a pH level of between eight and nine.  They reported magnesium, potassium, chloride and sodium were also found, with each mineral also found in soil here on Earth.  The soil could grow asparagus beans or turnips, but is too acidic for strawberries or blueberries.

Scientists now wonder what they'll be able to find even further nutrients once they begin to dig deeper below the surface.

Phoenix landed on Mars on May 25 and is scheduled for a three-month study of areas on the surface where scientists hope to find evidence of living organisms.  They recently found ice crumbs that would make it possible for humans could easily use and make safe to drink, and the soil would be able to support crops.  

Even with the recent findings of ice crumbs and soil ideal for plant life, the lander still hasn't found evidence that anything has lived or is living on the planet.  Since virtually everywhere on Earth that has a reliable water source can also support life, "could it also be true at Mars?"



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

Terraform Mars
By TonyB on 6/28/2008 7:30:23 PM , Rating: 5
NASA should start sending packages of bacteria to Mars, then take bets on what it'll evolve into in 1 billion years.




RE: Terraform Mars
By sqrt1 on 6/28/2008 8:09:03 PM , Rating: 2
You do realize that all probes to mars (except the original viking probes) are not serialized? It is almost guaranteed bacteria have made this trip.


RE: Terraform Mars
By sqrt1 on 6/28/2008 8:10:20 PM , Rating: 2
ack - typo meant "sterialized"


RE: Terraform Mars
By Shadow Conception on 6/28/2008 8:23:40 PM , Rating: 5
Or sterilized, maybe. ;)


RE: Terraform Mars
By wordsworm on 6/29/2008 7:03:09 AM , Rating: 5
I think he meant stereolized.


RE: Terraform Mars
By snownpaint on 6/30/2008 3:17:32 PM , Rating: 2
Hasn't anybody read The Andromeda Strain.. Classic book about just that, Scoop Project gone bad.(fiction)

I know there was a containment period for astronauts, not sure if that still stands. Seems silly to look for life, when you have it stuck as a boogie on the side of a spacecraft from some worker.. (I know about the clean rooms during the build)

NASA Press release: We found bacteria and living cells on Mars, oddly they match Bob's DNA and the common cold..


RE: Terraform Mars
By subflava on 6/28/2008 9:26:56 PM , Rating: 2
What gave you that idea? They most definitely "sterilize" all the Mars spacecraft (and probably for other missions as well). If you go the the Mar's Lander website you'll find references to a thin "bio-barrier" wrapping. If you think about it, you would feel pretty dumb if you claim you "discovered" life on Mars only to find out later it was some bacteria carried from Earth.


RE: Terraform Mars
By jadeskye on 6/28/2008 9:54:49 PM , Rating: 3
didn't that already happen?

the ALH something bacteria about a decade ago.


RE: Terraform Mars
By lompocus on 6/28/2008 11:14:23 PM , Rating: 2
I thought another occurance had happened just within the past 3-5 years too?


RE: Terraform Mars
By sqrt1 on 6/28/2008 11:43:26 PM , Rating: 4
I made this post before - but here it is again:

http://thefutureofthings.com/articles/55/the-rise-...

"It may come as a surprise to many that after Viking, we no longer sterilized spacecraft that landed on Mars. Pathfinder, ESA’s Beagle 2, the Mars Polar Lander, and the two MERs were not sterile. Nor will the upcoming Phoenix or MSL rover be sterile. These missions were assembled in special rooms under remarkably clean conditions, but it is known that they carried microorganisms. For Phoenix the arm is sterilized and kept in a biobarrier bag until after landing.

The committee that determines the protocol for spacecraft cleanliness is COSPAR (the international Committee on Space Research). After the Viking results indicated that the surface of Mars was inhospitable to life, COSPAR, following the recommendation of the U.S. National Academy of Sciences, lifted the requirement for sterilization and replaced it with a requirement for a high level of cleanliness but not sterility. Thus was Mars contaminated with life from Earth. "


RE: Terraform Mars
By Indianapolis on 6/29/2008 12:12:57 AM , Rating: 3
Does the radiation experienced in space have any sterilization effect on the craft?


RE: Terraform Mars
By sqrt1 on 6/29/2008 8:49:02 AM , Rating: 2
I am really no expert at all in this area - so someone else will have to comment. But that quote is apparently from a NASA scientist.

I would also think the shielding used to protect the delicate computer and communication systems could also protect bacteria. (this is just a guess however)


RE: Terraform Mars
By sgw2n5 on 6/29/2008 12:18:48 AM , Rating: 2
Really, it wouldn't matter whether they sterilized the equipment that has been (or will be) sent to Mars for the same reason that we haven't yet sent people to Mars... gamma radiation.

Nothing could survive the trip through open space (well, no nucleotide based organisms anyhow). A prion could probably survive the trip, though they are not normally considered living, just a misfolded protein.

The worst that we could do to "contaminate" the martian surface would be to litter it with dead bacterial cells from earth.


RE: Terraform Mars
By mindless1 on 6/29/2008 12:26:06 AM , Rating: 2
Maybe you're overlooking the fact that not only the exterior of the spacecraft is exposed to the planet once landed?


RE: Terraform Mars
By Nik00117 on 6/29/2008 7:19:39 AM , Rating: 2
I think you may be shocked to find that a lot of bacteria can survive extermely extereme conditiosn.


RE: Terraform Mars
By zsdersw on 6/29/2008 11:00:02 AM , Rating: 2
Space and Mars are quite a bit different from almost anywhere on Earth. Any lifeforms that exist on Earth would be unprepared for the amount of radiation that exists outside of our planet's atmosphere and magnetic field.


RE: Terraform Mars
By masher2 (blog) on 6/29/2008 6:25:13 PM , Rating: 2
> "Gamma radiation...Nothing could survive the trip through open space"

Eh? Do you think the skin of the Apollo capsules -- hardly thicker than aluminum foil in places -- blocks gamma rays? While radiation is a problem for humans in unshielded spacecraft, a trip of even several years is generally survivable, if one manages to avoid any particularly bad solar storm.

But viruses and bacteria are far, far, more resistant. In fact, many scientists believe in a concept known as Panspermia...that life on earth originated from spores travelling through space.


RE: Terraform Mars
By melgross on 6/29/2008 6:56:39 PM , Rating: 2
That's incorrect. It's believed that we may never be able to send astronauts to Mars because of the radiation. We don't see this hard radiation on Earth because of our planet's magnetic shield, which comes from our iron core within a molten mantle.

Mars has no molten mantle, and thus no magnetic shield, allowing this hard radiation to reach the planets surface. It's believed that the surface of Mars is therefore sterile, and may be to some distance below.

This lack of a magnetic shield causes any spacecraft to auto sterilize during the journey, though some parts inside may be shielded enough for bacteria.

However, for people and other higher life forms, the radiation is far too much for the three month or longer trip, plus the equal trip back.

So far, they haven't been able to come up with a workable shielding for a spacecraft. No one is sure that one will be developed.


RE: Terraform Mars
By Screwballl on 6/30/2008 1:33:24 PM , Rating: 2
Then how is it that men and women live on the space stations for months and months at a time? man made shielding. We can do the same if we ever decide a trip to mars for colonization... although I bet our own Moon will get colonized first and it is subject to the same radiation and effects that Mars is, although maybe not as severe.


RE: Terraform Mars
By maven81 on 6/30/2008 2:11:48 PM , Rating: 2
Well it's not quite that simple. The space station is in low earth orbit and gets the benefit of the earths magnetic field for protection. Something traveling in interplanetary space would not have that luxury. I definitely don't think it's impossible though.


RE: Terraform Mars
By elegault on 6/29/2008 11:45:19 AM , Rating: 2
He's right. I read it during Spirit and Opportunity missions.


RE: Terraform Mars
By Cogman on 6/29/2008 9:25:05 AM , Rating: 2
And you do realize that they are, don't you? NASA as a bacteria level that is permitable to send up into space, and believe me the bacteria allowed on the equipment is much lower then what is permitable on a sterilized scalpel.

Everything is assembled in a clean room, packaged and stored then they put it to the capsule which in turn goes into the rocket. The rocket isn't sterile, but it never touches martin soil.

Upon entry into the martian atmosphere and the vacuum of space, Im pretty sure almost all the left over bacteria is destroy (going from very extreme conditions)


RE: Terraform Mars
By CollegeTechGuy on 7/2/2008 3:16:21 PM , Rating: 2
With space temperatures about 5 degrees above absolute zero, its very unlikely bacteria have survived the cold harsh space environment, then the harsh entry to the Martian atmosphere. Although it is not impossible, its very unlikely. I'm not a biologist, but I would think it would be hard for a bacteria to survive the cold, then heated up to extreme temperatures seconds later.


RE: Terraform Mars
By cparka23 on 6/28/2008 10:18:26 PM , Rating: 2
Why wait? Just play Spore and you'll even know what bacteria to send.


Yeah, Big deal...So What...
By EndPCNoise on 6/29/08, Rating: 0
RE: Yeah, Big deal...So What...
By Ringold on 6/29/2008 5:14:10 PM , Rating: 3
We've got nuclear, we dont need trillion-dollar boondoggles in orbit. At least with power generation facilities at home, future enemies have to come here to the US to take them out. They could knock something like that right out of the sky. Then it's game-over for the US. Why don't we just call that the Achilles Heel Orbital Power Array?

There's no need to drag NASA off-mission to come up with bad solutions for problems where good solutions already exist, but are merely barred by politicians. It's also a solution in search of a problem; we import many things other than oil. Do we need shoe independence? Computer hardware independence? Trade autarky isn't a desirable goal, and full 'independence' is a fantasy.

Meanwhile, there is no greater impact NASA could have than to contribute to the ultimate expansion of humanity past Earth. Which is just what they're presently trying to do.

In short, keep your political agendas off my space program! ;)


RE: Yeah, Big deal...So What...
By EndPCNoise on 6/29/2008 5:41:00 PM , Rating: 2
So, you don't consider the world's dependence on oil a problem, hmmm...guess there's no point in arguing with you about that point then.

The Orbital Power Array is unlikely to be shot down since many countries (both West and East) will be benefiting from it.

" there is no greater impact NASA could have than to contribute to the ultimate expansion of humanity past Earth."

Talk about " pie in the sky ideas ", this one takes the cake. And as for political agendas? This idea of expanding humanity past earth DEFINES the words "political agenda."


RE: Yeah, Big deal...So What...
By masher2 (blog) on 6/29/2008 6:46:56 PM , Rating: 3
> "Talk about " pie in the sky ideas ", this one takes the cake"

The idea of colonizing space is now just "pie in the sky"? I have some friends I'm sure you'd love to meet:

"Heavier-than-air flying machines are impossible"
- Lord Kelvin, 1895.

"I think there is a world market for about five computers"
- Thomas Watson, IBM, 1943.

"An intercontinental missile is an utter impossibility".
- Vannevar Bush, 1949.

"There is no reason anyone would want a computer in their home."
- Ken Olsen, DEC, 1977.

"The horse is here to stay but the automobile is only a novelty - a fad"
- President of Michigan State Bank, in a letter to Henry Ford's attorney.


RE: Yeah, Big deal...So What...
By EndPCNoise on 6/29/08, Rating: -1
RE: Yeah, Big deal...So What...
By overzealot on 6/30/2008 2:40:23 AM , Rating: 1
I'm glad you're not deciding where my tax dollars are spent.
The 3rd world didn't even get a mention.


RE: Yeah, Big deal...So What...
By Ringold on 6/29/2008 8:48:41 PM , Rating: 2
quote:
So, you don't consider the world's dependence on oil a problem


Here's a point that would be critical to understand: All resources are finite. Oil is not at all special.

Moving beyond that, NASA's job is not to make you feel better about foreign trade. National Aeronautics and Space Administration. Where in that title do you see the job of energy production?

Hell, lets get the Department of Veteran Affairs working on energy too! And why not the Department of Housing and Urban Development? Maybe get the FDA on the job too, perhaps the Treasury Department can cover the FDA's job for a while.

In fact, lets have all government branches stop all work, and they can focus entirely on energy.

quote:
The Orbital Power Array is unlikely to be shot down since many countries (both West and East) will be benefiting from it.


Only we would be benefiting from it, because only we'd be stupid enough to actually build it at this point. China is quite content building nuclear reactors as quickly as it can. China needs, nor wants, any such expensive boondoggle weighting down the economic growth of the nation.


RE: Yeah, Big deal...So What...
By Ringold on 6/29/2008 8:53:14 PM , Rating: 2
ninja edit:

quote:
China doesn't need, nor want, any such expensive boondoggle weighting down the economic growth of the nation.


fixed.


RE: Yeah, Big deal...So What...
By MRwizard on 6/29/2008 10:09:44 PM , Rating: 2
quote:
All resources are finite.

Yes, but the sun is going to last us atleast a few lifetimes x 1000 :)


RE: Yeah, Big deal...So What...
By jimbojimbo on 6/30/2008 11:04:57 AM , Rating: 2
True, but most of the items we use to harness the energy of the sun are finite.


RE: Yeah, Big deal...So What...
By EndPCNoise on 6/29/2008 10:52:50 PM , Rating: 1
" Oil is not at all special. "

Like I said before, " So, you don't consider the world's dependence on oil a problem, hmmm...guess there's no point in arguing with you about that point then."

" In fact, lets have all government branches stop all work, and they can focus entirely on energy."

Uh...Yeah...Whatever you say...dude...
I was assuming we'd limit the scope of this thread to NASA's budget...

I have no beef with China's energy policies. At least China is PRO-ACTIVELY DOING SOMETHING about its future energy supplies/sources.

I will support the spending of $$$ billions on NASA space and airspace projects, which more directly benefit U.S. society / humanity. Such as this one:
http://blog.wired.com/cars/2008/06/nasas-blended-w...

I find a hard time supporting/justifying the spending of $$$ billions on the possibility of finding ice crystals, bacteria, or growing asparagus on MARS!


RE: Yeah, Big deal...So What...
By maven81 on 6/30/2008 12:28:46 AM , Rating: 2
quote:
I will support the spending of $$$ billions on NASA space and airspace projects, which more directly benefit U.S. society / humanity.


Ah yes, the age old "science for the sake of science is useless" argument. News-flash, a lot of amazingly useful technology that has benefited our society has come from random experiments just like these, and wasn't a result of some "useful" project. If we had you to decide what's useful and what's not we would never have transistors, lasers, LCDs, and a whole slew of other technologies we now can't live without. All started out as pure research projects, and not some attempt to benefit humanity.


RE: Yeah, Big deal...So What...
By EndPCNoise on 6/30/08, Rating: -1
RE: Yeah, Big deal...So What...
By maven81 on 6/30/2008 10:14:12 AM , Rating: 2
I actually used to be a member of both the planetary society and the moon society. So I HAVE donated my own money to science. What have you done to better humanity?

It's people like you that allowed Apollo to wither and die.
I bet if you lived in Columbus's time you would be screaming that the money needed for such an expidition would be better spent by feeding some poor village for a year... Because that will solve all of humanity's problems.


Awesome, but...
By cocoviper on 6/28/2008 9:27:36 PM , Rating: 4
This is awesome news. Hopefully the next probe we send can maybe collect some soil and rocket it back to Earth.

But besides this...can someone please fix the horrendous grammar at the end of the article?

I mean these sentences don't even make sense unless you try to grab an overall meaning:

"Scientists now wonder what they'll be able to find even further nutrients once they begin to dig deeper below the surface."

"They recently found ice crumbs that would make it possible for humans could easily use and make safe to drink, and the soil would be able to support crops."




RE: Awesome, but...
By winterspan on 6/28/2008 11:39:05 PM , Rating: 5
no kidding... jesus christ, did you guys just completely give up proof reading ???


RE: Awesome, but...
By Indianapolis on 6/29/2008 12:11:13 AM , Rating: 2
There's nothing wrong with the grammer...you just need to be able to read lolspeak. If you need any help, just ask your cat.

http://speaklolspeak.com/?t=anon


RE: Awesome, but...
By on 6/29/2008 12:04:01 PM , Rating: 2
The next Mars lander is the Mars Science Laboratory, a very large and advanced rover:

http://marsprogram.jpl.nasa.gov/msl/index.html

Check out the video showing the entry, descent, landing, deployment and roving process:

http://marsprogram.jpl.nasa.gov/msl/gallery/videos...


RE: Awesome, but...
By nugundam93 on 6/30/2008 1:06:07 AM , Rating: 2
...and here i thought the next mars lander would be the asparagus-mobile. ;)


So much for terraforming...
By Motoman on 6/28/2008 7:20:28 PM , Rating: 5
...can't grow any berries - just vegetables? Acres of Brussels Sprouts and no strawberries? A fate worse than death.




RE: So much for terraforming...
By DOSGuy on 6/29/2008 2:39:20 AM , Rating: 5
So it can grow asparagus and turnips. And no fruit. Hmm.

So, after we ruin the Earth and migrate to Mars, and old man will gather the children around and tell them, "And with that, a mighty cheer went up from the heroes of Mars. They had abandoned Earth and all of its awful lemon trees forever, because it was haunted. Now let's all celebrate with a cool glass of turnip juice."


RE: So much for terraforming...
By TSS on 6/29/2008 11:25:29 AM , Rating: 2
meh it's not all that bad. all it needs to be able to grow is grass, we'll ship a few cows/livestock there, they'll eat the grass and we get martian meat and milk from them. all beneath one nice big biodome with a spaceheater.


RE: So much for terraforming...
By hellokeith on 6/29/2008 1:25:27 PM , Rating: 2
Shake your fist harder, boy!


Slight oversight....
By Fnoob on 6/29/2008 10:17:42 AM , Rating: 2
Umm, so the dirt is good for growing vegetables - FROZEN vegetables. The MAX temp on Mars is -5C. Good luck farmer Bob.




RE: Slight oversight....
By ajfink on 6/29/2008 10:31:06 AM , Rating: 2
Random possibly unaccredited link:

"The average recorded temperature on Mars is -63° C (-81° F) with a maximum temperature of 20° C (68° F) and a minimum of -140° C (-220° F)."

http://www.solarviews.com/eng/mars.htm

As to the topic of terraforming Mars, it's relatively impossible. Mars, due to its lower gravity and lack of a significant electromagnetic field, is not only unable to maintain an atmosphere friendly to human survival, but you would get radia-wrecked rather quickly. If you could spin up Mars's core to increase its EM field strength and deal with all the supermassive earthquakes and volcanoes that it would set off over the course of a few decades, then maybe it would be more feasible.


RE: Slight oversight....
By Fnoob on 6/29/2008 10:57:16 AM , Rating: 2
I pulled this from wiki :

Surface temp.
min mean max
186 K 227 K 268 K
-87 °C -46 °C -5 °C

NOT a vacation destination.

Are you the same ajfink that used to be a CDead member?


RE: Slight oversight....
By masher2 (blog) on 6/29/2008 6:31:36 PM , Rating: 2
quote:
As to the topic of terraforming Mars, it's relatively impossible. Mars, due to its lower gravity and lack of a significant electromagnetic field, is not only unable to maintain an atmosphere friendly to human survival
The premise is incorrect. If man succeeded in giving Mars an atmosphere (say, by redirecting an ice comet or two at the appropriate time), it would indeed eventually bleed off -- in a few hundred thousand years or so. Given that's several times longer than all of recorded human history, it would certainly be an acceptable colony for a while.

Radiation problems are also not insoluble. I've seen research suggesting some areas of the surface have magnetic fields high enough to provide acceptable shielding. Of course, there is also the possibility of man enhancing that himself, as well as the potential for advanced medicines that would reduce or eliminate the risk from moderate radiation levels.


RE: Slight oversight....
By melgross on 6/29/2008 7:03:09 PM , Rating: 2
You are underestimating the amounts of water and atmosphere it would take.

I don't know where you read about the shielding, but there is nowhere on Mars where shielding is useful for our purposes.

A thick atmosphere helps, but as we know from the ozone hole here on Earth, even that may not be enough.

Without a magnetic shield, the radiation is far too much for any possible medicine.


RE: Slight oversight....
By rett448 on 6/30/2008 10:05:09 AM , Rating: 2
They did to the earth in "the Core", we can do it to mars too


Asparagus?
By MC17 on 6/29/2008 12:10:56 AM , Rating: 5
The purpose of exploring other planets is to spread ourselves out so we couldn't be destroyed by some great calamity, so bringing the plague (Asparagus) with us kinda defeats the purpose.




RE: Asparagus?
By Fnoob on 6/29/2008 10:24:24 AM , Rating: 2
Comon man, wrap that stuff in bacon and put it on the grill. Bacon makes everything better - even asparagus.


RE: Asparagus?
By johnsonx on 6/29/2008 1:15:35 PM , Rating: 2
Asparagus isn't as bad as all that. Put it on the grill, then eat with a little butter and lemon juice. It's also good steamed with a bit of garlic butter.

Maybe Martian Asparagus won't make your piss stink?


RE: Asparagus?
By 325hhee on 6/30/2008 9:57:28 AM , Rating: 2
Gee, I wonder how much shipping would be from Mars to Earth for Mars grown asparagus. I guess the sale price in the supermarkets would be 1 billion per pound :)


Wonderful news.
By SiliconAddict on 6/29/2008 1:11:13 AM , Rating: 2
Screw terraforming. Screw asparagus. The fact that it can possibly grow plants means you can create a semi sealed garden that can change piped in CO2 to oxygen.




RE: Wonderful news.
By Fnoob on 6/29/2008 10:25:58 AM , Rating: 2
I don't think you'll need to pipe CO2 in - it's already there in abundance.


...
By pauldovi on 6/28/08, Rating: 0
RE: ...
By jadeskye on 6/28/2008 9:54:01 PM , Rating: 2
retro lol.


Great quote
By Indianapolis on 6/29/2008 12:07:09 AM , Rating: 2
"You might be able to grow asparagus in it really well ... It is very exciting for us."

I love that quote. I mean, who wouldn't be excited at the prospect of growing asparagus on Mars? I could see this quote being inserted into the lineup of quotes at the bottom of pages.




yeah.
By themengsk176 on 6/29/2008 2:31:37 AM , Rating: 2
yeah, I think they should start putting down greenhouses on mars STAT. get that atmosphere a bit thicker and see what happens next.




By JonnyDough on 6/29/2008 4:09:05 AM , Rating: 2
something tells me that I wouldn't want to the drink "recycled" water on that martian farm. My urine always smells strongly after I eat asparagus here on Earth, although I have yet to test it off planet.

No my friend, I'd be spending my nights at the Mars Bars, drinking Martian Manhattans(?) poured over mar-ice (not to be confused with Maurice, which, coincidentally could very well be the name of a smart scientist guy NASA would send to Mars. I mean, Maurice just sounds like a smart dude's name to me and I certainly would want a smart guy to like me if I was light years from my home).




"I'd be pissed too, but you didn't have to go all Minority Report on his ass!" -- Jon Stewart on police raiding Gizmodo editor Jason Chen's home














botimage
Copyright 2012 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki