An anonymous reader writes "NASA's 'Mohawk Guy' Bobak Ferdowsi, a flight director for the Mars Science Laboratory mission that lowered the Curiosity rover to the Martian surface in early August, will host a two-hour online broadcast on Internet radio station Third Rock Radio at 4 p.m. EDT, Thursday, August 30. The show, entitled 'Getting Curious with the Mohawk Guy,' will feature Ferdowsi discussing his experience with the landing of Curiosity, NASA’s evolving image, and renewed interest in science and exploration."

cylonlover writes "While still impressive, the capabilities of early 'tricorders,' such as the Scanadu and Dr Jansen's tricorder, fall well short of the Star Trek device that inspired them. But a new miniaturized version of a flow cytometer called the Microflow to be tested on the International Space Station (ISS) brings the age of instant diagnosis of medical conditions using a portable device a step closer. The Microflow could also make its way into doctor's offices here on Earth where it might help cut down on the number of follow up visits required after waiting to get results back from the lab."

MrSeb writes "Bioengineers at Harvard University have created the first examples of cyborg tissue: Neurons, heart cells, muscle, and blood vessels that are interwoven by nanowires and transistors. These cyborg tissues are half living cells, half electronics. As far as the cells are concerned, they're just normal cells that behave normally — but the electronic side actually acts as a sensor network, allowing a computer to interface directly with the cells. In the case of cyborg heart tissue, the researchers have already used the embedded nanowires to measure the contractions (heart rate) of the cells. So far, the researchers have only used the nanoelectric scaffolds to read data from the cells — but according to lead researcher Charles Lieber, the next step is to find a way of talking to the individual cells, to 'wire up tissue and communicate with it in the same way a biological system does.' Suffice it to say, if you can use a digital computer to read and write data to your body's cells, there are some awesome applications."

An anonymous reader writes "A roundtable at the Bulletin of the Atomic Sciences explores the notion of nuclear fuel banks which would offer nations a guaranteed supply of low-enriched uranium if they renounce the right to enrich on their own. From the article: 'The basic idea behind an international fuel bank is that it would, in a reliable and nondiscriminatory way, make emergency supplies of market-priced low-enriched uranium available to states that sign up to participate. States that opt for membership in a fuel bank would gain increased confidence that their access to reactor-grade fuel would not be interrupted. In return, they would renounce the right to enrich uranium and reprocess spent fuel on their own. Such an arrangement could be appropriate for a number of states. But for others, it might be less than ideal.'"

coondoggie writes "NASA today said its Wide-field Infrared Survey Explorer satellite has unearthed a 'bonanza of new-found supermassive black holes and extreme galaxies called hot DOGs, or dust-obscured galaxies.' NASA said the latest discoveries help astronomers better understand how galaxies and the behemoth black holes at their centers grow and evolve together." The news was released in a press conference, and io9 has a comprehensive write-up about everything that was covered, including the Q&A session. Pretty pictures here.

An anonymous reader writes "For reasons that scientists have not conclusively determined, women are happier than men. And now, researchers think that they may have pinpointed one of the reasons for that. They have found a gene in women that predicts the level of happiness in women. 'After controlling for various factors, ranging from age and education to income, the researchers found that women with the low-expression type of MAOA were significantly happier than others. Compared to women with no copies of the low-expression version of the MAOA gene, women with one copy scored higher on the happiness scale and those with two copies increased their score even more. While a substantial number of men carried a copy of the "happy" version of the MAOA gene, they reported no more happiness than those without it.'"

scibri writes about robots helping neuroscientists dig into the brains of (animal) test subjects. From the article: "Robots designed to perform whole-cell patch-clamping, a difficult but powerful method that allows neuroscientists to access neurons' internal electrical workings, could make the tricky technique commonplace. Scientists from MIT have designed a robot that can record electrical currents in up to 4 neurons in the brains of anesthetized mice (abstract) at once, and they hope to extend it to up to 100 at a time. The robot finds its target on the basis of characteristic changes in the electrical environment near neurons. Then, the device nicks the cell's membrane and seals itself around the tiny hole to access the neuron's contents."

redletterdave writes with news of a drone that's helping weather forecasters this hurricane season. From the article: "Hurricane prediction is not always an exact science — back in 2005, Hurricane Rita was projected to hit Houston, but missed the region entirely — but the NOAA (National Oceanographic and Atmospheric Administration) is already on the case. A few weeks ago today, the agency launched an experimental Wave Glider robot named Alex into the ocean, hoping the unmanned drone can forecast the direction of future storms. The Wave Glider, which is completely powered by the waves and the sun thanks to solar panels and a unique thrust engine, contains a GPS unit, satellite communications systems, and sensors for measuring water temperature, wind speed, and various wave characteristics. With its ability to withstand strong winds and thrashing waters — which are typically prohibitive for humans and even aerial vehicles — and its ability to theoretically drift in the ocean endlessly without refueling, a single Wave Glider could be used to monitor not just one storm, but several hurricanes occurring over an entire seasonal period. The NOAA hopes to soon use more Wave Glider robots like Alex to help determine more accurate hurricane watches and warnings."

DevotedSkeptic writes "Kepler has continued its stellar (pun intended) discovery spree, this time locating multiple planets orbiting a binary star system. This is especially interesting because it proves that more than one planet can form under the stresses of a binary star system. The system is known as a circumbinary planetary system, a mechanism where a planet orbits two stars. Prior to this discovery, having multiple planets in a circumbinary system was unproven. Named Kepler-47, the system consists of a pair of orbiting stars that eclipse each other every 7.5 days. One star is similar in size to our Sol, however it only provides approximately 84% of Sol's light, the other is smaller, measuring one third of the size of Sol and emits less than 1% of Sol's light. Kepler-47b is the closer planet to its two suns, orbiting in 50 Earth days. Kepler-47c is further out and orbits every 303 days, within the Goldilocks zone. 'Unlike our sun, many stars are part of multiple-star systems where two or more stars orbit one another. The question always has been — do they have planets and planetary systems? This Kepler discovery proves that they do,' said William Borucki, Kepler mission principal investigator at NASA's Ames Research Center in Moffett Field, Calif. 'In our search for habitable planets, we have found more opportunities for life to exist.'"

toygeek writes "Before Curiosity, before Opportunity, before Spirit, and before Sojourner, the very first robot to land on Mars was this little guy, way back in December of 1971. Called PrOP-M, the rover was part of the Soviet Union's Mars-3 mission, which had the potential to deploy the first ever mobile scientific instruments onto the Martian surface. Article also contains Russian video on early rovers."

tetrahedrassface writes "Slashdot carried the story of an-as-yet unverified impact crater in Tennessee a couple of years ago. After a few weeks of fairly hardcore sample taking, digging, obtaining some good images and manipulating them, I'm proud to report the first batch of evidence in favor of it being an impact site. The primary smoking gun is the presentation of an astrobleme, obtained from High Resolution Ornithographic Images taken in 2008. Also of note are the melted/deformed rocks, magnetic crater dust, and the fitment of the crater rim to a circle. A rented plane and a bunch of photographs today and it's pretty obvious that it's a crater, folks. Cheers!"

ananyo writes "On 27 August, a report by the American Academy of Pediatrics concludes for the first time that, overall, boys will be healthier if circumcised. The report says that although the choice is ultimately up to parents, medical insurance should pay for the procedure. The recommendation, coming from such an influential body, could boost U.S. circumcision rates, which, at 55%, are already higher than much of the developed world. The researchers estimate that each circumcision that is not performed costs the U.S. health-care system $313."

Zothecula writes "When the late Neil Armstrong and the crew of Apollo 11 went to the Moon, they did so sitting atop a rocket the size of a skyscraper that blasted out jets of smoke and flame as it hurtled skyward. For over half a century, that is how all astronauts have gone into space. It's all very dramatic, but it's also expensive. Wouldn't it be cheaper and easier to take the elevator? That's the question that Michael Laine, CEO of LiftPort in Seattle, Washington, hopes to answer with the development of a transportation system that swaps space-rockets for space-ribbons. LiftPort ultimately wants to build a space elevator on Earth, but the company isn't planning on doing it in one go. Instead, Laine and his team are settling for a more modest goal – building an elevator on the Moon by 2020. This is much easier. For one thing, there’s no air on the Moon, so no icing problems. Also, the lower gravity means that no unobtainium is needed for the ribbon. Kevlar is strong enough for the job. And finally, there’s very little in the way of satellites or debris to contend with."

An anonymous reader writes "A forensic test that has been developed to help police nab perpetrators of crimes can predict a suspect's eye color, hair color, and ethnic origin. The test's ability and the science behind it has been outlined in Forensic Science International: Genetics (abstract). Developed by Susan Walsh and other researchers from the Netherlands, Greece, and Poland, the test uses phenotypes from DNA to ... predict a suspect's appearance using 'low amounts of template DNA, as well as degraded DNA,' which means that the DNA does not need to be perfect in order for the system to read it."

timeOday writes "BigThink has released a video missive by Bill Nye ('The Science Guy') in which he challenges the low level of acceptance of evolution, particularly in the United States. He does not mince words: 'I say to the grownups, if you want to deny evolution and live in your world, in your world that's completely inconsistent with everything we observe in the universe, that's fine, but don't make your kids do it because we need them. We need scientifically literate voters and taxpayers for the future. We need people that can — we need engineers that can build stuff, solve problems.'"

retroworks writes "The BBC reports on a paper published in the U.S.'s Proceedings of the National Academy of Sciences showing a correlation between persistent, regular cannabis use and risk of lower IQ. The study finds the risk particularly correlates use of cannabis by teenagers who use the drug "four times a week year after year." The more people smoked, the greater the loss in IQ. Reviewers of the study at King's College Institute of Psychiatry states that the data and methodology are exceptional, but she also cautions that there may be another explanation, such as depression, which could lower IQ while stimulating marijuana use. The study does not mention or rule out 'nocebo' effects, i.e. just feeling stupid for spending your teens hanging out with potheads."

MTorrice writes "Microscopic particles of aluminum and gallium rocket around using water as their fuel. The particles, which are 20 micrometers in diameter, are asymmetric: A chemical reaction on the back side of the particle forms hydrogen gas bubbles that propel the motor forward. Over the past several years, bioengineers have built micro- and nanosized rockets that zip through liquids, fueled by chemical reactions between the materials that make up the rockets and their environments. The engineers hope someday these tiny motors could help deliver cargo, such as drugs, in people. Unfortunately, many of these motors require toxic hydrogen peroxide as fuel source, limiting their use in the body. To overcome that constraint, the new micromotors harness a well-known reaction between aluminum and water to produce hydrogen gas."

alphadogg writes "Researchers have discovered that relatively little exposure to tablets and other electronics with backlit displays can keep people up at night by messing with their circadian rhythms. The study from the Lighting Research Center at Rensselaer Polytechnic Institute showed that a 2-hour exposure to electronic devices with such displays causes suppression of the melatonin hormone and could make it especially tough for teens to fall asleep. The study, funded by Sharp Laboratories of America, simulated usage of such devices among 13 people using special glasses/goggles and light meters"

DevotedSkeptic writes "Caltech scientists have created an ultra-sensitive device that can weigh an individual molecule for the first time. The device is invisible to the naked eye and vibrates at a specific frequency based on the molecule resting on top of its bridge like structure." More in the Caltech press release. This is an improvement on a design from 2009 that also could theoretically weigh a single molecule, but in practice could not because the position along the "bridge" affected the result. Now the researchers have figured out how to measure the position of the molecule on the bridge and compensate. The device is built using semiconductor fabrication techniques "...making it easy to mass-produce. That's crucial, since instruments that are efficient enough for doctors or biologists to use will need arrays of hundreds to tens of thousands of these bridges working in parallel. 'With the incorporation of the devices that are made by techniques for large-scale integration, we're well on our way to creating such instruments,' Roukes says. This new technology, the researchers say, will enable the development of a new generation of mass-spectrometry instruments." The full article is behind a paywall unfortunately.

bbianca127 writes "Researchers studied classical conditioning in 55 study participants while sleeping or awake. According to the article, 'Classical conditioning teaches a person or animal to associate one stimulus with another.' The researchers paired tones with scents; when they played a tone, they would let out a particular scent while the participants were sleeping. They found that the participants would make the association between the tones and scents even while awake."