A new report suggests that an insecticide sprayed from airplanes to kill mosquitos carrying the Zika virus may in fact be killing bees, since the "fine mist" is "beaded with neurotoxin." Earlier this week, one beekeeper posted a video showing thousands of dead bees heaped around hives. Meanwhile, South Carolina hobbyist Andrew Mache wrote in another Facebook post that he had lost "thousands upon thousands of bees" and that the spraying had devastated his business. The Guardian reports: "The program head, Dr Mike Weyman, said that though South Carolina has strict rules about protecting pollinators, country officials were using the neurotoxin, Naled, under a clause exempting them in a 'clear and public health crisis.' South Carolina's protocol for Zika infections is to alert local officials of a carrier's residence, which they 'consider a ground zero,' Weman said. Local authorities then target the local mosquitos in a 200-yard radius, in this case with spray. Experts at the Centers for Disease Control and Prevention (CDC), the Environmental Protection Agency (EPA) and independent universities say Naled is far safer than other chemicals. It breaks down rapidly and, in the very low doses at which it is prescribed, should not pose a risk to humans. 'In Louisiana, we use these products quite frequently to reduce mosquitos, but we don't see many non-target effects, because the doses are really small,' said Dr Kirsten Healy, a public health entomologist at Louisiana State University. 'A lot of people don't realize that we always have the environment in mind. We try to have products that have the lowest possible impact.'" The report adds that bees and other pollinators "contribute an estimated $29 billion to farm income" around the U.S.

Chinese web firm Tencent, which has stake in apps such as messaging clients WeChat and India's Hike messenger, has become the most valuable company in Asia. The company has been racing neck-and-neck with Samsung and China Mobile in the recent times but thanks to some strategic moves and aggressive expansion, and also some bad moves by its rivals, there's no one bigger than Tencent in Asia anymore. Fortune reports:Samsung has flagged over the last few days, however, after it had to issue a recall for its flagship Note 7 handset because of reports about battery fires. But stock in Tencent has continued to surge, rising 3.8% in Hong Kong on Monday. That took it to a valuation of HK$1.976 trillion ($255 billion). That jump takes Tencent narrowly past the market cap of China Mobile, and into the same premier league of public corporations as U.S. tech giants Apple, Alphabet, Microsoft, Amazon and Facebook. The Chinese e-commerce group Alibaba is not far behind, with a current valuation of around $250 billion.

An anonymous reader shares a Motherboard report: Freddie Mercury, frontman of Queen and transcendent being of pure performative joy and vitality, would have been 70 years old this Monday, September 5. To celebrate the occasion and honor Mercury's enormous impact on pop culture, the International Astronomical Union (IAU) has officially changed the name of Asteroid 17473, located in the asteroid belt between Mars and Jupiter, to "Freddiemercury." It's a fitting tribute to the man who exuberantly sang that he was "a shooting star leaping through the sky" in the heart-thumping rock rager "Don't Stop Me Now." Queen's lead guitarist Brian May, who also happens to be an astrophysicist with a namesake asteroid of his own, announced the news to the band's fans via YouTube on Sunday. Mercury's asteroid is about three and a half kilometers across, and has an albedo of about 0.3, which means it reflects only about 30 percent of the Sun's light. "It's a dark object, like a cinder in space, as many of these asteroids are," May said. "It's just a dot of light, but it's a very special dot of light."

astroengine writes: With only a month before its mission ends, the European Space Agency's Rosetta mission swooped low over Comet 67P/Churyumov–Gerasimenko to see the stranded Philae lander jammed in a crack. After months of searching for the lander, which made its dramatic touchdown on Nov. 14, 2014, mission scientists had a good idea as to the region the robot was in, but this is the first photographic proof of the lander, on its side, stuck in the craggy location called Abydos. "This wonderful news means that we now have the missing 'ground-truth' information needed to put Philae's three days of science into proper context, now that we know where that ground actually is!" said Rosetta project scientist Matt Taylor in a statement.

If scientists could send Zika-carrying mosquitoes into extinction, should they do it? Several science and business journals are now exploring the question, and Slashdot reader retroworks asks if scientists will ultimately target "not just the most deadly species of the animal, but all 12 species of human-biting mosquitoes in the world, responsible for 500,000 deaths per year." The headline on today's [paywalled] Wall Street Journal article begs the question, "Why Not Kill Them All...?" [M]ore business journals are exploring private sector investments to eradicate the species of mosquito entirely, [and] most articles seem to find extinction of the indoors-attacking, dengue fever- and malaria-spreading Aedes aegypti a tantalizing prospect...

The BBC weighed the approach more carefully, noting that mosquitoes make rain forests uninhabitable (and consequences of human populations in rain forests are usually disastrous)... Will capitalism make the itch of mosquito bites be forgotten... Forever?

NASA will land a new probe on Mars on November 26, 2018, "paving the way toward an ambitious journey to send humans to the Red Planet," according to one NASA official. The $828 million project will investigate how the planet was formed, NASA announced Friday, calling it "an unparalleled opportunity to learn more about the internal structure of the Red Planet."

Meanwhile, long-time Slashdot reader taiwanjohn shares an editorial published by Ars Technica the same day, titled "We love you SpaceX, and hope you reach Mars. But we need you to focus." Noting that SpaceX receives the majority of its funding from NASA, the site's senior space editor writes that the company's business model requires that they ultimately deliver a reusable launch system. "I understand SpaceX has a master plan -- the company wants to colonize Mars... But at some point you have to focus on the here and now, and that is the Falcon 9 rocket... if there is no Falcon 9, there is no business."
In a related story, Saturday NASA's history office shared a photograph from the Viking 2's landing on the surface of Mars -- which happened exactly 40 years ago.

"Researchers at the University of Wisconsin-Madison are the first to have fabricated carbon nanotube transistors (CNTs) that outperform the current-density of conventional semiconductors like silicon and gallium arsenide," reports NanotechWeb. Slashdot reader wasteoid shares the site's interview with one of the researchers: "When the transistors are turned on to the conductive state (meaning that current is able to pass through the CNT channel) the amount of current traveling through each CNT in the array approaches the fundamental quantum limit," he tells nanotechweb.org.

"Since the CNTs conduct in parallel, and the packing density and conductance per tube are very high, the overall current density is very high too -- at nearly twice that of silicon's. The result is that these CNT array FETs have a conductance that is seven times higher than any previous reported CNT array field-effect transistor."
The research was funded in part by the U.S. Army and Air Force, as well as the National Science Foundation. "The implication here is that by replacing silicon with a CNT channel, it should be possible for us to make either a higher performing device or one that works at lower power."

In other news, Fujitsu announced this week that it's joining an effort to release a 256-megabyte 55-nanometer carbon nanotube-based NRAM by 2018.

Long-time Slashdot reader RockDoctor writes: Remember the screaming and welcoming of our Dyson-Sphere-Dwelling 1500 LY distant Overlords that accompanied the news that star KIC 8462852 was irregularly dimming on both short and longer timescales? A second star with a similar light curve has been discovered and reported on ARXIV.

With the euphonious names "EPIC 204278916" and "2MASS J16020757-2257467", the star is a young M1 (red) star, traveling as part of a group of stars which haven't had time to disperse from their place of formation. The age is estimated at 5 — 11 million years. Analysis of 70+ days of data from the K2 mission epoch shows a rotation of 3.6 days, but a period of 25 days near the start of the observation epoch showed dips in intensity of up to 60% lasting for up to about a day each. Details are in the Arxiv paper linked to above, particularly figures 1 and 4.

If confirmed, this discovery changes the situation with interpreting the so-called "Tabby's Star". Firstly with a second object in the class, the odds of it representing a class of naturally occurring objects compared to a unique, unusual object is greatly increased. Secondly, the different celestial mechanical situations around the different stars allows a better estimate of plausible formation mechanisms. One potentially important point is that clumps of debris that could produce these dimmings seem to be quite large. "It is also important to note that the resulting size for the transiting and occulting clump would be quite large at with the clump being in the order of 1.5 times the radius of the Sun. Sadly, this appears to be a new class of "dirty young planetary system." no alien Overlords, no screaming in the streets. Just business-like astronomy.

After analyzing 1.4 million scores on HackerRank's tests for coding accuracy and speed, Chinese programmers "outscored all other countries in mathematics, functional programming, and data structures challenges". Long-time Slashdot reader DirkDaring quotes a report from InfoWorld: While the United States and India may have lots of programmers, China and Russia have the most talented developers according to a study by HackerRank... "If we held a hacking Olympics today, our data suggests that China would win the gold, Russia would take home a silver, and Poland would nab the bronze. Though they certainly deserve credit for making a showing, the United States and India have some work ahead of them before they make it into the top 25."
While the majority of scores came from America and India, the two countries ranked 28th and 31st, respectively. "Poland was tops in Java testing, France led in C++, Hong Kong in Python, Japan in artificial intelligence, and Switzerland in databases," reports InfoWorld. Ukrainian programmers had the top scores in security, while Finland showed the highest scores for Ruby.

the_newsbeagle writes: You can now buy gadgets online that send electric current through your scalp to stimulate your brain. Why would you want to do that? Because the easy technique, called transcranial direct current stimulation (tDCS), is being investigated as a treatment for depression, a rehab aid for stroke patients, a learning enhancer for healthy people, and for many other neuropsychiatric applications.

However, the technique is so new that companies selling brain-zapping gadgets aren't bound by any regulations, and experts are worried that consumers will end up buying devices that aren't safe or simply aren't effective. So scientists and some manufacturers recently got together to discuss the scope of the problem, and what can be done about it.
Earlier IEEE reported that "Professional basketball, baseball, and American football teams are also experimenting with it," adding that some Olympic athletes, including sprinters and swimmers, even used a premarket version of one brain-zapping device to prepare for the Olympics in Rio.

Slashdot reader schwit1 writes: Joe Sutter, Boeing's lead designer for the design and construction of the 747, has passed away at 95. This documentary of the 747 and Joe Sutter is excellent: Jumbo Revolution.
Sutter and his engineers "initially played second fiddle to the more glamorous Boeing development project at the time, the Supersonic Transport (SST)," according to Stuff.co.nz. "But the US government ultimately killed funding for the SST, and the 747 turned into the icon of international long-haul flying that established Boeing's supremacy in commercial aviation for more than two decades after it entered service in January 1970."

Sutter's team completed the roll-out of the 747 in just 29 months -- a record -- and in 1986 Sutter also served on the team investigating the explosion of the Space Shuttle Challenger. "Appalled that NASA's safety standards were lower than those in his commercial airplane world, Sutter was typically vocal in his criticism and pushed a key recommendation of the committee to implement a new safety management system."

An anonymous reader writes from a report via TechCrunch: SpaceX appears to be hard at work building its Hyperloop test track through Hawthorne, a city in southwestern Los Angeles County, California. TechCrunch reports: "SpaceX is hosting a Hyperloop Pod Design Competition for student and engineering teams, and 23 winners were selected earlier this year to build their pod prototypes and race them on the test track, a 1-mile tube capable of achieving 99.8 percent vacuum. Said track was photographed by reddit user 42finder this week (via Electrek). Pod testing would be a big step for Hyperloop technology. The two main companies competing to build the first operational Hyperloop systems, Hyperloop Transportation Technologies and Hyperloop One, have yet to create pod tests. HyperloopOne has begun construction on its own test track in the Nevada desert, of course, but the SpaceX project looks considerably further along. Back when SpaceX first announced the competition, the timing of the final round which includes the actual test of final prototype pods was set for Summer 2016, but in July SpaceX announced that would slip to January of next year."

NASA has released the first close-up images of Jupiter's north pole captured by the Juno spacecraft, taken during the probe's first flyby of the planet with its instruments switched on. "The images show storm systems and weather activity unlike anything previously seen on any of our solar system's gas-giant planets," writes Tony Greicius via NASA. NPR reports: "NASA also released an image of Jupiter's southern aurora, a unique view that could be captured only by a spacecraft close to Jupiter. The aurora occurs when energized particles from the sun interact with Jupiter's atmosphere near the planet's poles. The space agency also released audio of what the aurora sounds like if you convert it to a frequency the human ear can hear. The pictures and data were collected Aug. 27, when June made the first of some three dozen scheduled close encounters with Jupiter. At its closest approach, the spacecraft was a mere 2,500 miles above the planet's cloud tops." The images can be found here. You can also listen to Jupiter's auroras via YouTube. Spoiler: they sound like a dial-up modem.

The Food and Drug Administration has ordered "antibacterial" ingredients to be removed from consumer soaps, citing a lack of evidence that they are effective in making soap work any better and that the industry has failed to prove they're safe. The banned chemicals include triclosan, triclocarban and 17 others (PDF) typically found in hand and body soaps. Companies have until late next year to remove the ingredients from their products, the FDA said. "Companies will no longer be able to market antibacterial washes with these ingredients because manufacturers did not demonstrate that the ingredients are both safe for long-term daily use and more effective than plain soap and water in preventing illness and the spread of certain infections," the FDA said in a statement. NBC News reports: "In 2013 FDA gave soapmakers a year to show that adding antibacterial chemicals did anything at all to help them kill germs. It made the rule final Friday. The FDA started asking about triclosan in 1978. Environmental groups and some members of Congress have been calling for limits on the use of triclosan. The Natural Resources Defense Council (NRDC) sued and the FDA agreed to do something about triclosan by 2016. There's no proof that triclosan is dangerous to people, but some animal studies suggest high doses can affect the way hormones work in the body. The proposed rule only affects hand soaps and body washes. Triclosan is often used in toothpaste and it's been shown to help kill germs that cause gum disease."

mi writes: Washington Free Beacon reports: "The National Science Foundation is spending roughly half a million dollars to combat 'online trolling.' A joint project by Northwestern and Northeastern universities is examining how to create 'trolling-free environments' on the internet. The researchers define online trolls as those who try to influence public opinion by boosting 'misleading' and 'inauthentic comments.'" Just how can the "misleading" and "inauthentic" speech be eliminated by the government without violating the First Amendment? "Today almost every browser click that users make is collected by numerous trackers associated with a variety of online services (e.g., advertising networks, online social networks, e-commerce platforms)," a grant for the project states. "Users have often expressed concern about the lack of privacy and control over their personal data. Nonetheless, despite a substantial effort to expose and control this prevalent behavior, the reality is that users keep accepting updated online privacy policies, which in turn grant the gathering of more personal data. This project explores re-using this extensive tracking infrastructure for the benefits of both the users themselves and web services, with a goal of preventing online trolling (scenarios in which various groups deploy tactics to influence public opinion on the internet, by leaving biased, false, misleading, and inauthentic comments, and then artificially amplifying their ratings). The project aims to show how the tracking infrastructure can be re-used as a user 'fingerprint,' allowing a lightweight and privacy-preserving form of identification for third-party web sites." The lead researchers on the project, Aleksander Kuzmanovic from Northwestern University, and Alan Mislove from Northeastern University, said: "Public opinion is of paramount importance in any society. It is thus not a surprise that many governments, political parties, and various other groups deploy tactics to influence public opinion on the internet, a practice commonly referred to as trolling." They say their work could help combat "troll armies" used by Russia and China.