Tag Archives: water

Water on Mars? Yup. Life? Naaaaah… or, well, perhaps.

NASA's Mars Phoenix Lander - artist's impressionOK, so we’re pretty positive about there being water on Mars now, but if you thought all was certainty in the realms of planetary exploration, you’d be wrong wrong wrong. [image courtesy NASA]

It’s all Aviation Week‘s fault, after they ran a story claiming that the White House had just been…

“… alerted by NASA about plans to make an announcement soon on major new Phoenix lander discoveries concerning the “potential for life” on Mars”.

As delightfully ambiguous as any pre-press-release announcement… and unsurprisingly (perhaps even as planned?) home-brew speculationists have been clogging the intertubes with theories about what NASA is (or was, or wasn’t) planning to announce.

So far, so unsurprising. Until you discover that the Phoenix lander itself* has announced that it definitely hasn’t discovered life and that there has been no such White House briefing. What gives?

Personally I suspect nothing more than the results of old-school media briefings and funky new methods (social-media-ZOMG!) getting a bit out of sync, but why spoil a potentially good conspiracy theory, eh? If you really want to burst that irrational bubble, Karl Schroeder has a pretty plausible explanation of what’s probably going on.

The recent discovery that the soil at the Phoenix lander site could support some earthly plants would appear to contradict the findings of the Viking landers from the 1970s. Those craft deployed sophisticated experiments to determine whether life is present on Mars, yet the instruments returned ambiguous results. There was a strong signal indicating life from some of the instruments, yet no evidence of biological material in the soil. The official interpretation that has become orthodoxy as a result, is that the Martian soil is highly oxidizing, ie. that it contains compounds such as hydrogen peroxide that destroy biological materials.

But if Phoenix has found that you could grow earthly plants in the soil at its site, doesn’t this cast serious doubt on that interpretation?

So, not so much “discovering life” as “possibly refuting a speculative negative interpretation of positive results gathered decades ago in support of the possibility of life”… but it doesn’t take a degree in journalism to see which of those two makes the better headline, AMIRITE?

[ * – Well, someone on the team, but you know what I mean. ]

Mars Water Fit for Pickling . . . Life

toxic waterThe scientific community eagerly watches the progress as Pheonix lander scours Mars. They are hoping that there will be signs that there was once a supply of water on the planet that would give evidence that there may have once been life on the planet. Most scientists seem to conclude, though, that data from the Opportunity indicates that the water was a toxic mix of salty water and minerals that would have been unsuitable for Earth-like lifeforms. [photo courtesy Kevin].

If this is true, then it changes a lot of our views of the Red Planet, making it a lot less viable as a possible location for colonies or population in the future. What was once seen as the new bastion of human existence when we ruin the planet we have now, may be nothing more than a dusty satellite orbiting the Sun. Who’s to say, though? We on Earth have such an egocentric view of our existence that it’s hard for us to imagine that there may be other possibilities of variant lifeforms in the universe that don’t operate as we do (i.e. – do all lifeforms really have to be carbon-based?).

Grr! Arrgh! Nearly-extinct predators make a comeback

fisherHorror writers in search of a plot need look no further: a weasel-like predator known as the fisher is making itself right at home in your Northeast or Midwest suburbs! The mixture of eco- and morality tale make it the perfect story device, given that they were almost wiped out by trappers and foresters in the last century, but reintroduced to prey on porcupines. The New York Times describes a householder’s encounter with a fisher that tried to eat her German shepherd’s face:

“I had never seen anything like it,” Ms. Beaudry recalled. “I didn’t know what it was. It kind of looked like a fox. But it was very, very ratty looking and had fangs and claws. It was creepy looking, but not that big.”

More animals-out-of-place news: The Caribbean monk seal, extinct. The Chinook salmon, endangered in the U.S., is thriving so well in Chile and Argentina that it could disrupt freshwater and marine ecosystems. And there’s thumbnail-sized quagga mussels clogging up the Colorado River. What other displaced creatures might be cast in near-future fiction?

[Image: Wikimedia Commons]

“Tech support? I need a plumber.”

In an attempt to pre-empt the engineering problems posed by the relentless march (or final splutterings) of Moore’s law, IBM has unveiled plans for an very different kind of hydraulic computing;

A network of tiny pipes of water could be used to cool next-generation PC chips, researchers … have said.

Scientists at the firm have shown off a prototype device layered with thousands of “hair-width” cooling arteries.

They believe it could be a solution to the increasing amount of heat pumped out by chips as they become smaller and more densely packed with components.

So – let me get this straight – give it five years, and to support my ultra-powerful palmtop, I’ll have to plumb the darned thing into the domestic water supply or ensure a steady supply of bottled mineral water? Either way, surely that’d negate the whole portability issue?

[Image and story via the BBC]