Predator versus alien: this will surely not end well

Paul Raven @ 10-03-2010

Japanese knotweedWhile Alabama may have its congongrass, we here in the UK have our own invasive species of Far Eastern weed in the form of Fallopia japonica, better known as Japanese knotweed. In their great wisdom, our Department for Environment, Food and Rural Affairs is planning to introduce another alien species – a form of plant lice – into the ecosystem to get rid of it. [image by dankogreen]

Laboratory tests were started on pests from Japan which control the knotweed by feeding on sap from its stems, causing the plant to die back.

The tests showed the chosen Aphalara itadori did not eat any other species, including closely related British plants and important crops.

Genius! I mean, the odds of a short-lifespanned insect evolving itself a wider diet when introduced to a totally new biosphere must be so small as to be negligible. Nothing could possibly go wrong with this plan!

Paging John Wyndham… would John Wyndham please report to the briefing rooms…


Are we alone?

Tom James @ 10-07-2009

saucersTranshumanist blogger George Dvorsky points to a debate between astrophysicist Brandon Carter and a team of Serbian researchers, the core of which revolves around how long complex (and intelligent) life takes to evolve:

Prior to ‘recent times’, universal mechanisms were in place to continually thwart the evolutionary development of intelligence, namely through gamma-ray bursts, super novae and other forms of nastiness. Occasional catastrophic events have been resetting the “astrobiological clock” of regions of the Galaxy causing biospheres to start over. “Earth may be rare in time, not in space,” they say. They also note that the rate of evolution is intimately connected with a planet’s environment, such as the kind of radiation its star emits.

For further discussion of our place in the universe see the Copernican Principle, which exhorts us to avoid assuming that humanity, Earth, and our place in the universe can be assumed to be unique and special.

Further the notion of punctuated equilibrium to describe evolution is interesting: might it be extended to describe other evolutionary phenomena? Eric Beinhocker’s superb The Origin of Wealth describes both technology and the economy in terms of evolutionary systems, both of which experience a form of punctuated equilibrium.

[image from eek the cat on flickr]


Does the Earth harbour a ’shadow biosphere’?

Paul Raven @ 17-02-2009

alien desertDoes the Earth harbour forms of life unrelated to the carbon-based DNA-powered stuff we know about? “Impossible,” you might say, but as pointed out by astrophysicist Paul Davies, we wouldn’t know – because we’ve never looked for it.

“Our search for life [has been] based on our assumptions of life as we know it. Weird life and normal life could be intermingled, and filtering out the things we understand about life as we know it from the things we don’t understand is tricky.”

The tools and experiments researchers use to look for new forms of life – such as those on missions to Mars – would not detect biochemistries different from our own, making it easy for scientists to miss alien life, even if was under their noses.

Alternative biochemistry is inherently a speculative field, which is why it has made plenty of appearances in science fiction – Rudy Rucker has dealt with similar ideas before, for example, and Futurismic columnist Mac Tonnies has theorised about the potential of Earth being home to beings we are not able to recognise as such.

Finding examples of alien life here on Earth might add credence to theories like panspermia – but, more importantly, it would suggest that the likelihood of life developing elsewhere in the universe is closer to one than to zero. [via SlashDot; image by Haeroldus Laudeus]


Drake equation crunched – 361 civilisations in our galaxy alone?

Paul Raven @ 11-02-2009

Messier-74 galaxyHey, great news for SETI fans! The latest work on the Drake equation suggests that we can all get our Fox Mulder on:

The current research estimates that there are at least 361 intelligent civilisations in our Galaxy and possibly as many as 38,000.

Awesome! Wait, what?

Even with the higher of the two estimates, however, it is not very likely that contact could be established with alien worlds.

Ah. Bugger.

Of course, the Drake Equation is only as good as its input data, and much of that remains wildly speculative. But the above is the result of factoring in the sudden rash of exoplanet discoveries we’ve made in the last few years; according to Centauri Dreams, the little we’ve learned about them means we can simulate the potential parameters of their atmospheres in order to guess how statistically likely they are to harbour the potential for life. Even that’s mostly guesswork, though:

… in biological terms, we are even more up the creek, since we base our thinking on observations of a single biosphere, our own. To keep the number of free parameters to a minimum, Forgan works with “a biological version of the Copernican Principle,” the notion that our Terran biosphere is not special or unique, so that we can think about life on other worlds as sharing many of the same characteristic parameters.

So keep watching the skies, folks! And don’t forget the hypothesis of Futurismic’s own Mac Tonnies, which suggests that what we think of as extraterrestrials may in fact be something much more local… [image by jimkster]


Rudy Rucker defines UFO science fiction

Paul Raven @ 02-01-2009

lenticular cloudMaverick mathematician Rudy Rucker is thinking about topics for his next novel, and it looks like UFOs might get a look-in. Partly in response to a recent Loving the Alien column by our very own Mac Tonnies, Rucker is at pains to define the subgenre carefully:

I think we should distinguish between, on the one hand, SF UFO novels and, on the other hand, alien invasion novels along the lines of, say, Greg Bear or Larry Niven. I think, for instance, Neal Stephenson’s recent Anathem, is more of an alien invasion novel, although it’s close to being an SF UFO novel as well.

So, with that distinction made, what should an SF UFO novel contain?

I’d say the essence of an SF UFO novel is point (a) below. Points (b) through (f) all follow from (a).

(a) The novel includes flying saucer alien encounters similar to those described in lowbrow tabloid newspapers, but is neither ignorantly credulous nor mockingly parodistic.
(b) The aliens use a fuzzy technology that might amount to psychic powers. The saucers, in other words, aren’t machines.
(c) The aliens are surreptitiously observing or infiltrating Earth rather than overtly invading—at least for now.
(d) We have some creepy human/alien sex acts.
(e) The aliens aren’t necessarily evil, they may be bringing enlightenment and transcendence.
(f) The aliens might be from somewhere other than a distant planet, that is, they might come from small size scales, from a parallel world, or might be made of some impalpable substance like dark matter.

Part of the game in writing an SF UFO novel is making up scientific reasons why the tabloid-level UFO phenomenon could in fact relate to something real…

As Mac’s essay pointed out, there is a distinct paucity of novels that deal with the UFO phenomenon – maybe 2009 could be the year for a UFO renaissance? [image by sabertasche2]

Hell knows it would make a refreshing change from sexy vampires.


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