thecarchik writes "It is not an easy task to compare the environmental effects of battery powered cars to those caused by conventionally fueled automobiles. The degree to which manufacture, usage and disposal of the batteries used to store the necessary electrical energy are detrimental to the environment is not exactly known. Now, for the first time, a team of Empa scientists have made a detailed life cycle assessment (LCA) or ecobalance of lithium-ion (Li-ion) batteries, in particular the chemically improved (i.e. more environmentally friendly) version of the ones most frequently used in electric vehicles. Researchers decided to find out for sure. They calculated the ecological footprints of electric cars fitted with Li-ion batteries, taking into account all possible relevant factors, from those associated with the production of individual parts all the way through to the scrapping of the vehicle and the disposal of the remains, including the operation of the vehicle during its lifetime."

An anonymous reader writes with this excerpt from Cosmos: "Astronomers have made the first direct capture of a spectrum of light from a planet outside the Solar System and are deciphering its composition. The light was snared from a giant planet that orbits a bright young star called HR 8799 about 130 light-years from Earth, said the European Southern Observatory (ESO). ... The find is important, because hidden within a light spectrum are clues about the relative amounts of different elements in the planet's atmosphere. 'The features observed in the spectrum are not compatible with current theoretical models,' said co-author Wolfgang Brandner. 'We need to take into account a more detailed description of the atmospheric dust clouds, or accept that the atmosphere has a different chemical composition from that previously assumed.' The result represents a milestone in the search for life elsewhere in the universe, said the ESO. Until now, astronomers have been able to get only an indirect light sample from an exoplanet, as worlds beyond our Solar System are called. They do this by measuring the spectrum of a star twice — while an orbiting exoplanet passes near to the front of it, and again while the planet is directly behind it. The planet's spectrum is thus calculated by subtracting one light sample from another."

Al writes "The Fermi Paradox focuses on the existence of advanced civilizations elsewhere in the galaxy. If these civilizations are out there — and many analyses suggest the galaxy should be teeming with life — why haven't we seen them? Carlos Cotta and Álvaro Morales from the University of Malaga in Spain investigate another angle by considering the speed at which a sufficiently advanced civilization could colonize the galaxy. Various analyses suggest that using spacecraft that travel at a tenth of the speed of light, the colonization wavefront could take some 50 million years to sweep the galaxy. Others have calculated that it may be closer to 13 billion years, which may explain ET's absence. Cotta and Morales study how automated probes sent ahead of the colonization could explore the galaxy. If these probes left evidence of a visit that lasts for 100 million years, then there can be no more than about 10 civilizations out there."

Hugh Pickens writes "Discover magazine has an interesting article on the multiverse theory — a synthesis of string theory and the anthropic principle that explains why our universe seems perfectly tailored for life without invoking an intelligent creator. Our universe may be but one of perhaps infinitely many universes in an inconceivably vast multiverse. While most of those universes are barren, some, like ours, have conditions suitable for life. The idea that the universe was made just for us — known as the anthropic principle — debuted in 1973 when Brandon Carter proposed that a purely random assortment of laws would have left the universe dead and dark, and that life limits the values that physical constants can have. The anthropic principle languished on the fringes of science for years, but in 2000, new theoretical work threatened to unravel string theory when researchers calculated that the basic equations of string theory have an astronomical number of different possible solutions, perhaps as many as 101,000, with each solution representing a unique way to describe the universe. The latest iteration of string theory provides a natural explanation for the anthropic principle. If there are vast numbers of other universes, all with different properties, at least one of them ought to have the right combination of conditions to bring forth stars, planets, and living things." So far xkcd is simulating just one single universe.

swestcott brings us a story from Space.com about the possibility of finding evidence for ancient Earth life on the moon. A team of scientists has published work confirming that meteorites originating from Earth could have remained sufficiently intact while colliding with the moon to allow the survival of biological evidence for life. Quoting: "Crawford and Baldwin's group simulated their meteors as cubes, and calculated pressures at 500 points on the surface of the cube as it impacted the lunar surface at a wide range of impact angles and velocities. In the most extreme case they tested (vertical impact at a speed of some 11,180 mph, or 5 kilometers per second), Crawford reports that 'some portions' of the simulated meteorite would have melted, but 'the bulk of the projectile, and especially the trailing half, was subjected to much lower pressures.'"

The Skinny writes "Today is a historic day for the SETI program. The New York Times reports that astronomers are flipping the switch today on the Allen Telescope Array — 350 antennas, each 20 feet in diameter — which will, among other things, extend the search for extraterrestrial life a thousandfold. From the article: ' There are some 200 billion stars in the galaxy, and a significant fraction of them have planets. Estimates of the number of intelligent civilizations in the galaxy have ranged from one (or none, if you are particularly discouraged about human affairs) into the millions. Dr. Shostak calculated that the full Allen array would be able to detect a signal from as far as 500 light years that is only a few times more powerful than what can now be sent by the Arecibo radio telescope, a 1,000-foot-diameter dish in Puerto Rico that is the world's largest (although it is in danger of being shut down to save money). That translates to about a million stars, which he said was getting into a promising number. Dr. Shostak described the expanded search as looking for the needle in the proverbial haystack with a shovel instead of a spoon.'"

An anonymous reader writes "There's a new Instant Messaging Worm on the loose that is wrapped up in more than a few interesting twists. The people behind the infection lure users in with a message on a Russian hosted website claiming to have 'a virtual card for you' — a reference to the famous Email hoax listed on Snopes and numerous other web hoax sites. At the point of infection, the worm opens up a picture of a heart (from a site called Quatrocantos.com that tackles web scams on a daily basis) — this picture itself related to a different 'virtual card' hoax from 2002. Bearing in mind the people behind this attack are deliberately serving up an image from a 'good guy' website related to virtual card hoaxes, the question is — are they attempting to create a real life infection out of a web-based piece of lore, making a calculated move to tie this attack into numerous Web hoaxes, possibly to confuse infected users looking for help online or simply having a little fun at the good guy's expense?"

The rich IP backgrounds of Square/Enix and the Disney Corporation were thrown together for the first time in 2002. The Square-developed game, entitled Kingdom Hearts, surprised players with a story that blended two very different flavours into a compelling whole. The extent to which that game drew on the respective company's products made for a breathtakingly large world, and a storyline twisty enough to satisfy even the most jaded RPG player. Unfortunately, weak gameplay detracted from the overall experience of the unique title. The sequel, Kingdom Hearts II, picks up the pieces where the original left off and makes noticeable improvements in both story and gameplay. Read on for my impressions of a solid RPG that does fan service like no other title out there.

mindpixel writes "Astrobiology Magazine's Leslie Mullen has a fascinating interview with funky science dude David Grinspoon about the possibility that there may exist a whole new biology on Titan where the extreme cold slows normally explosive reactions to a biologically useful pace." From the article: "What's really new in our paper is that we go into the question of energy sources. If there's life there, what's it going to eat? What kind of food is there? And it turns out there's abundant food because of all this photochemistry in the upper atmosphere, where methane is being turned into other organic molecules. Some of those organic molecules are very energy-rich, and one that we consider in the paper is acetylene. We know it's being made in the atmosphere, we know it's raining down on the surface, and it's been detected at the surface with the Huygens probe. We calculated that, if acetylene is reacting with the hydrogen gas to turn it back into methane, quite a bit of energy is being released. So that's our basis for saying there is something to eat on Titan. We don't know if there are any customers, but there's something on the menu."

ppanon writes "When Larry Niven's Ringworld's Children came out in June, I picked up a copy and it's been sitting on my shelf since. I had been hesitating to read it because I didn't want to be disappointed by it as I had been by some of his other solo novels in the last decade (Destiny's Road, The Ringworld Throne). But being home with a virus this weekend, and having run out of new Anime DVDs to watch, I thought it was time to catch up on some reading. I looked at Niven's book and thought, 'Might as well, I can't feel much worse.' As I got further into the novel, my problem wasn't that of feeling worse, it was forcing myself to put the book down when I felt I needed to rest again." Read on for the rest.

Sure, you know that Netcraft tests have for a while provided empirical evidence of Apache's usefulness and ubiquity. But if you're called upon to use Apache in your workplace (or if you care to serve pages for fun off your home box), you might need more to go on. Chromatic took some busy time out of his life to write this review of Administering Apache, which he says takes a "calculated, strategic approach" to what has become one of the world's most important pieces of software.

From somehere just off the beaten path of SciFi, programming and encryption reviews, Kevin Whilden of Your Planet Earth submitted this review of Natural Capitalism, a book aimed at reconciling nature lovers with free market enthusiasts. The book's basic ideas may be old hat to many libertarians and other free-marketeers, but are phrased in way that seems aimed at a fairly conventional lay audience. How do you feel about the connections he draws between open source software and the eco-economy? What is the best economic atmosphere for a healthy environment, and is it also the best one for free software? How realistic is the Rocky Mountain Institute's analysis?

Thanks to Crag Pfeifer for sending a review of James Gleick's Faster. If you've ever felt like life's moving faster then ever, this is worth reading.

Michael Dayah wrote to us with a great essay, that I've included below. He addresses the issue of the Drake Equation and what Age we live in now.