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Space

Spirit Outlasts Viking 2 Lander 137

ScottMaxwell writes "Spirit, the Mars rover designed for a 90-day mission, has now outlasted the Viking 2 lander. Viking 2 survived until its 1281st sol (Martian day); Spirit is now on sol 1282 and counting. Assuming both rovers continue to weather the ongoing dust storms, Spirit's sister, Opportunity, will reach the same age in a few weeks. They aren't breathing down the neck of the all-time record just yet, though — the Viking 1 lander lasted 2245 sols on the surface of Mars; Spirit and Opportunity won't break that record for another 2.7 Earth years."
Space

Why We Need to Expand into Space 460

Zentropa writes "Why do humans need to explore and colonize space? To save the planet and our species, argues an opinion piece in Cosmos, an Aussie science magazine. It makes some good points from an angle you may not have previously considered; for example, it's in the universe's best interest to keep us around. We make things fun. 'So what if humans pass into history? It's not just a tragedy for us, but also one for nature. Without us, there is no one to witness its infinite beauty; no one to marvel at a sunset, revel in a view, or thrill to the breaking of a wave on a beach. As the late astronomer and author Carl Sagan once said, "we are a way for the universe to know itself". But we also deserve to continue because we have created things greater than ourselves. Not only scientific and engineering knowledge, valuable as this is -- we have also created new and beautiful ways to see the world through art, music, literature and performance.'"
Math

Optical Solution For an NP-Complete Problem? 232

6 writes to let us know that two optical researchers have proposed, as a thought experiment, a novel idea for solving the traveling salesman problem. From the abstract: We introduce an optical method based on white light interferometry in order to solve the well-known NP-complete traveling salesman problem. To our knowledge it is the first time that a method for the reduction of non-polynomial time to quadratic time has been proposed. We will show that this achievement is limited by the number of available photons for solving the problem. It will turn out that this number of photons is proportional to NN for a traveling salesman problem with N cities and that for large numbers of cities the method in practice therefore is limited by the signal-to-noise ratio. The proposed method is meant purely as a gedankenexperiment."
Graphics

Algorithm Seamlessly Patches Holes In Images 198

Beetle B. writes in with research from Carnegie Mellon demonstrating a new way to replace arbitrarily shaped blank areas in an image with portions of images from a huge catalog in a totally seamless manner. From the abstract: "In this paper we present a new image completion algorithm powered by a huge database of photographs gathered from the Web. The algorithm patches up holes in images by finding similar image regions in the database that are not only seamless but also semantically valid. Our chief insight is that while the space of images is effectively infinite, the space of semantically differentiable scenes is actually not that large. For many image completion tasks we are able to find similar scenes which contain image fragments that will convincingly complete the image. Our algorithm is entirely data-driven, requiring no annotations or labelling by the user."
Security

Point-and-Click Gmail Hacking Shown at Black Hat 260

not5150 writes "Using Gmail or most other webmail programs over an unsecured access point just got a bit more dangerous. At Black Hat Robert Graham, CEO of errata security, showed how to capture and clone session cookies very quickly over connections without encryption. He even hijacked a shocked attendee's Gmail account in the middle of his presentation. 'While Ou was typing, Graham was running Ferret and sniffing all the cookies that were being sent from Ou's laptop and Google. Graham then clicked on Ou's IP address and Gmail page, complete with Ou's recently sent message on the screen. We photographed both Graham's and Ou's laptop at that time and posted it to the picture gallery. You'll see that the contents are exactly the same.'"
Media

Forensic Analysis Reveals Al-Qaeda's Image Doctoring 285

WerewolfOfVulcan writes "Wired reports that researcher Neal Krawetz revealed some very interesting things about the Al-Qaeda images broadcast in the mass media. Analysis shows that they're heavily manipulated, a discussion meant to illustrate a new technique that can spot forgery in digital media. 'Krawetz was ... able to determine that the writing on the banner behind al-Zawahiri's head was added to the image afterward. In the second picture above showing the results of the error level analysis, the light clusters on the image indicate areas of the image that were added or changed. The subtitles and logos in the upper right and lower left corners ... were all added at the same time, while the banner writing was added at a different time, likely around the same time that al-Zawahiri was added, Krawetz says.'"
The Internet

The Pirate Bay About To Relaunch Suprnova.org 285

kungfujesus writes "The Pirate Bay crew has been working on this secret project for quite some time now. Back in April they wrote a cryptic post on their blog announcing that something was coming. In a response to this announcement TPB admin Brokep told TorrentFreak: "The past, the present and the future. It's all the same, but one thing's for sure, we will radiate for weeks", today it became clear that he was referring to the resurrection of Suprnova."
Robotics

First Armed Robots on Patrol in Iraq 661

An anonymous reader writes "Robots have been roaming Iraq, since shortly after the war began. Now, for the first time — the first time in any war zone — the 'bots are carrying guns. The SWORDS robots, armed with M249 machine guns, "haven't fired their weapons yet," an Army official says. "But that'll be happening soon." The machines have actually been ready for a while, but safety concerns kept them off the battlefield. Now, the robots have kill switches, so "now we can kill the unit if it goes crazy," according to the Army. I feel safer already."
Google

Google Shows Off Ad-Supported Cell Phone 290

taoman1 writes "Today Google showed off a ad-supported cellphone that the company plans to offer for free to interested parties. The product could reach the marketplace within a year, and will offer Google search, email, and a web browser. 'The move would echo another recent product launched by a phone industry outsider, Apple Inc.'s iPhone. But Google's product would draw its revenue from a sharply different source, relying on commercial advertising dollars instead of the sticker price of at least US$499 for an iPhone and $60 per month for the AT&T Inc. service plan. Negotiating the fairest way to split those advertising revenues with service providers could be a big hurdle for Google, one analyst said. Another problem is the potential that consumers could be scared off by the prospect of listening to advertisements before being able to make phone calls, said Jeff Kagan, a wireless and telecommunications industry analyst in Atlanta.'"
Slashdot.org

Introducing the Slashdot Firehose 320

Logged in users have noticed for some time the request to drink from the Slashdot Firehose. Well now we're ready to start having everybody test it out. It's partially a collaborative news system, partially a redesigned & dynamic next-generation Slashdot index. It's got a lot of really cool features, and a lot of equally annoying new problems for us to find and fix for the next few weeks. I've attached a rough draft of the FAQ to the end of this article. A quick read of it will probably answer most questions from how it works, what all the color codes mean, to what we intend to do with it.

Ballmer Speaks on His Solo Act 196

Carl Bialik from WSJ writes "In his first one-on-one interview since Bill Gates's retirement announcement, Steve Ballmer tells the Wall Street Journal he is bullish on Microsoft's investments in online services, and he dismisses as 'random malarkey' the idea that Microsoft is having trouble hiring and keeping the kind of brilliant employees that have always been the company's competitive weapon. Here's Ballmer on Gates's departure: 'As co-leaders of the business, I could allow Bill to be the full-time champion of innovation. And [now] with me really being the guy who's here every day running the place, I must be the champion of innovation.' And on competing with Google: 'We're going to compete. We're going to be in the online business. We are going to have a core around online. We're going to be excellent. That, I would tell people, to count on...'"

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