The Edmonton Journal reports: Recently, researchers asked more than 2,000 American and European adults their thoughts about genetically modified foods. They also asked them how much they thought they understood about GM foods, and a series of 15 true-false questions to test how much they actually knew about genetics and science in general. The researchers were interested in studying a perverse human phenomenon: People tend to be lousy judges of how much they know. Across four studies conducted in three countries -- the U.S., France and Germany -- the researchers found that extreme opponents of genetically modified foods "display a lack of insight into how much they know." They know the least, but think they know the most. "The less people know," the authors conclude, "the more opposed they are to the scientific consensus."

Science communicators have made concerted efforts to educate the public with an eye to bringing their attitudes in line with the experts," they write in the journal Nature Human Behaviour. But people with an inflated sense of what they actually know -- and most in need of education -- are also the ones least likely to be open to new information.... Extreme views often come along with not appreciating the complexity of the subject -- "not realizing how much there is to know," said Philip Fernbach, lead author of the new study and a professor of marketing at the University of Colorado Boulder. "People who don't know very much think they know a lot, and that is the basis for their extreme views."
Slashdot reader Layzej links to Rational Wiki's article on "The Backfire Effect," to illustrate Fernbach's observation that "People double down on their 'counter-scientific consensus attitudes'.

"Epecially when people feel threatened or if they are being treated as if they are stupid."

schwit1 quotes Popular Mechanics: A lot of the rocks we have on Earth are pretty old, but none of them were around when our planet was first formed. The Earth itself is around 4.5 billion years old, and the oldest rocks we've ever found are a little over half that age. That seems to have changed, however, because a group of scientists recently announced they've found a rock that formed only half a billion years after the Earth itself. The twist is that this particular rock wasn't discovered on Earth at all. It was found on the moon.

The rock itself was discovered decades ago by the Apollo 14 crew. The Apollo missions brought back a whole lot of rock samples, and scientists have been methodically analyzing them ever since. This one seems to have been somewhere near the end of the list, but it may be the most interesting one ever found.

According to the analysis, this rock formed somewhere between 4 and 4.1 billion years ago, about 12.4 miles beneath the Earth's crust. Researchers knew it came from the Earth based on the amount of various minerals like quartz and feldspar, which are common on Earth but rare on the Moon. They could tell how deep it was based on a molecular analysis of the rock, which can tell the researchers what temperature the rock was at when it formed.

This year's Sundance Film Festival opened with a new 93-minute documentary crafted entirely from archival footage of NASA's Apollo 11 mission, reports collectSpace -- including some never seen before: In the course of sourcing all of the known imagery, the National Archives (NARA) staff members made a discovery that changed the course of the project -- an unprocessed collection of 65mm footage, never before seen by the public. Unbeknownst to even the NARA archivists, the reels contained wide format scenes of the Saturn V launch, the inside of the Launch Control Center and post-mission activities aboard the USS Hornet aircraft carrier... The resulting transfer -- from which the documentary was cut -- is the highest resolution, highest quality digital collection of Apollo 11 footage in existence. "We knew that the clock was ticking, this material had been sitting around for 50 years," said director Todd Douglas Miller, commenting on the motivation behind the film scanning effort.

The other unexpected find was a massive cache of audio recordings -- more than 11,000 hours -- comprising the individual tracks from 60 members of the Mission Control team. "Apollo 11" film team members wrote code to restore the audio and make it searchable and then began the multi-year process of listening to and documenting the recordings. The effort yielded new insights into key events of the moon landing mission, as well as surprising moments of humor and camaraderie. "Much of the footage in 'Apollo 11' is, by virtue of both access and proper preservation, utterly breathtaking," wrote The Hollywood Reporter's Daniel Fienberg in his review of the film. "The sense of scale, especially in the opening minutes, sets the tone as [the] rocket is being transported to the launch pad and resembles nothing so much as a scene from 'Star Wars' only with the weight and grandeur that come from 6.5 million pounds of machinery instead of CG."

NASA and the National Science Foundation helped fund something amazing. Slashdot reader astroengine writes: For the first time, scientists have created a computer model that can simulate the evolution of a solar flare, from thousands of miles below the photosphere to the eruption itself in the lower corona -- the sun's multimillion degree atmosphere. And the results are not only scientifically impressive, the visualization is gorgeous....

[W]ith increasingly-sophisticated solar observatories (such as NASA's Solar Dynamics Observatory), we are getting an ever more detailed look at what's going on inside the sun's deep atmosphere and, with improvements of theoretical models and increases in computer processing power, simulations of the corona are looking more and more like the real thing... Rather than forcing their simulation to generate flares, they re-enacted the conditions of the sun that were observed and just let their simulation run to create its own flares. "Our model was able to capture the entire process, from the buildup of energy to emergence at the surface to rising into the corona, energizing the corona, and then getting to the point when the energy is released in a solar flare," said NCAR scientist Matthias Rempel in a statement. "This was a stand-alone simulation that was inspired by observed data. "
They're calling it "a three-dimensional radiative magnetohydrodynamic simulation of a solar flare," and Discover magazine breaks down the colors in the image -- for example, green shows the hottest plasma, with temperatures over 10 million K (or nearly 18 million F).

"A single flare can release the equivalent of millions of hydrogen bombs all going off at the same time."

An anonymous reader quotes CBS News: The governor of Washington state declared a state of emergency Friday over a measles outbreak that has sickened dozens of people in a county with one of the state's lowest vaccination rates. Gov. Jay Inslee said in a statement that the outbreak in Clark County "creates an extreme public health risk" that could spread throughout the state...

Clark County Public Health has confirmed 30 measles cases since January 1 and identified another nine suspected cases. Twenty-six of the confirmed cases were people who were not immunized for measles, the agency said... Only 77.4 percent of all public students there complete their vaccinations, according to state records cited by the Oregonian...Most of the confirmed cases -- 21 -- were with children between 1 and 10 years old. Eight cases involved people 11 to 18 years old, and one case was someone 19 to 29.
Time magazines also reports that authorities in the neighboring states of Oregon and Idaho "have issued warnings to residents."

In November the World Health Organization warned that measles cases worldwide had jumped more than 30% from 2016 to 2017, according to AFP, "in part because of children not being vaccinated."

An anonymous reader quotes a report from The Guardian: People who stutter are being given electrical brain stimulation in a clinical trial aimed at improving fluency without the need for grueling speech training. If shown to be effective, the technique -- which involves passing an almost imperceptible current through the brain -- could be routinely offered by speech therapists. The latest treatment, which is combined with fluency training, is not expected to completely cure people of their stutter but could potentially give them more control over it. The brain stimulation, known as transcranial direct current stimulation (tDCS), involves strapping electrodes on each temple and then passing a current through the head. The current is weak enough that people are either oblivious to the electrodes being switched on or feel just a slight tingling.

The stimulation increases the firing rate of neurons in certain brain regions, which scientists believe could make it quicker to learn thought patterns associated with fluent speech, and make the effects of training more permanent. In the trial, the 40 participants are asked to speak in time with a metronome, saying one syllable on every beat. During this task, people who stutter typically become completely fluent. "The idea is that if you stimulate them while they're fluent, you're reinforcing that fluent speech process," said Jennifer Chesters, a speech and language researcher at the University of Oxford who is involved in the trial. "And hopefully that will make it more likely for them to use that process in their normal life." Each time a neuron fires in the brain, its connections with neighbouring neurons are strengthened or weakened slightly -- this is how learning occurs. With stimulation, the threshold for neurons firing is lower, so this could accelerate the rewiring that occurs during fluency training.

New research reviewed in the journal Frontiers in Physiology suggests that muscle nuclei -- the factories that power new muscle growth -- could give older muscles an edge in regaining fitness later on. "Muscles need to be versatile to meet animals' needs to move," reports NPR. "Muscle cells can be sculpted into many forms and can stretch to volumes 100,000 times larger than a normal cell. Muscle cells gain this flexibility by breaking the biological norm of one nucleus to a cell; some muscle cells house thousands of nuclei. In mammals, these extra nuclei come from stem cells called satellite cells that surround the muscle. When demands on the muscle increase, these satellite cells fuse with muscle cells, combining their nuclei and paving the way for more muscle." From the report: Physiologists had thought that a single nucleus supported a certain volume of cell. As a muscle cell grew, it needed more nuclei to support that extra volume. But as a muscle shrinks from lack of use, it gets rid of those unnecessary extra nuclei. This view found support in studies that found nuclei were scrapped as muscles atrophied. But [Kristian Gundersen, a muscle biologist from the University of Oslo] and [Lawrence Schwartz, a biologist at the University of Massachusetts] say those experiments overlooked what was really happening.

Take a cross section of muscle tissue and you'll find a sort of marbled mishmash of muscle cells surrounded by numerous other cell types, such as satellite cells and fibroblasts. Researchers could have been measuring the death of cells that support muscle and incorrectly inferred that muscle cells lose their nuclei, according to Gundersen and Schwartz. Gundersen and colleagues developed another method that zoomed in on individual muscle cells. The researchers injected a stain into muscle cells that mice use to flex their toes. The stain spreads throughout the muscle cells, illuminating their nuclei. Gundersen could then track the nuclei over time as he induced muscle growth by giving the mice testosterone, a steroid hormone. Later, after stopping the testosterone, he could watch what happened as those muscles atrophied. Unsurprisingly, testosterone boosted nuclei number. But those extra nuclei stuck around, even as the muscle shrank by half. Gundersen thinks the results contradict the dogma that nuclei disappear when muscles atrophy. "Nuclei are lost by cell death," he says, "just not the actual muscle nuclei that confer strength." What's more, he says these retained extra nuclei might explain how a muscle remembers its past fitness.

Reader schwit1 shares a report: Research funding for diseases that predominantly affect people living in poverty hit a record high in 2017, according to a report released on 23 January by Policy Cures Research, a global-health think tank in Sydney, Australia. At US$3.6 billion, investments into 'neglected' diseases were higher than in any year since 2007. A surge from 2016 to 2017 included a rise in funding to fight neglected diseases generally, as opposed to targeting individual maladies.

Anna Doubell, director of research at Policy Cures Research, says that the launch of several trials testing new Ebola drugs, diagnostics and vaccines in response to the Ebola crisis in West Africa between 2014 and 2016 might be giving donors hope that investments into neglected diseases pay off. "The amount of progress made in a short period of time after the Ebola outbreak might have brought in optimism about what is possible," Doubell says.

Scientists are claiming the cosmic collision that made the moon left a host of elements behind on Earth that were crucial for life to emerge. The Guardian reports: The impact 4.4 billion years ago is thought to have occurred when an itinerant planet the size of Mars slammed into the fledgling Earth, scattering a shower of rocks into space. The debris later coalesced into the moon. Beyond an act that shaped the sky, the smash-up transferred essential elements to the Earth's surface, meaning that most of the carbon and nitrogen that makes up our bodies probably came from the passing planet, the researchers believe.

Petrologists at Rice University in Texas reached their conclusions after running experiments on geochemical reactions under the high temperatures and pressures found deep inside a planet. They wanted to understand whether Earth acquired key elements from meteorites that slammed into Earth or through some other ancient route. Lead author Damanveer Grewal found that a planet with a sulphur-rich core would have large fractions of carbon and nitrogen on its surface. Such a planet could transfer that volatile material to Earth in just the right proportions if it happened to clatter into it, the researchers found, after modeling a billion different cosmic scenarios in a computer and comparing them to conditions seen in the solar system today. The research is published in Science Advances.

According to The Washington Post, "a growing number of scientists, not normally known for being advocates, are bringing evangelical zeal to the message that lack of sleep is an escalating public health crisis that deserves as much attention as the obesity epidemic." "We're competing against moneyed interests, with technology and gaming and all that. It's so addictive and so hard to compete with," said Orfeu Buxton, a sleep researcher at Pennsylvania State University. "We've had this natural experiment with the Internet that swamped everything else." From the report: The sleep research community, formerly balkanized into separate sleep disorders such as insomnia and sleep apnea, has begun to coalesce around the concept of "sleep health" -- which for most adults means getting at least seven hours a night. But time in the sack has been steadily decreasing. In 1942, a Gallup poll found that adults slept an average of 7.9 hours per night. In 2013, the average adult had sheared more than an hour off that number. In 2016, the Centers for Disease Control and Prevention reported that a third of adults fail to get the recommended seven hours. In the blink of an eye, in evolutionary terms, humans have radically altered a fundamental biological necessity -- with repercussions we are still only beginning to understand.

For years, animal studies have shown that learning activities are reactivated during sleep, a critical part of how lasting memories are formed. More recently, Princeton postdoctoral researcher Monika Schonauer asked 32 people to sleep in the lab after they had been asked to memorize 100 pictures of houses or faces. By analyzing their patterns of electrical brain activity, she found she could effectively read their minds, predicting which images they had been studying while awake -- because they were replaying them. [...] Sleep problems have long been recognized as a symptom of psychiatric and neurological disorders, ranging from depression to Alzheimer's. But increasingly, researchers are exploring the two-way street between disrupted sleep and disease. And researchers who started out interested in cognitive functions such as memory or brain development are finding themselves focused on sleep because it is so fundamental.

Strong Texas winds managed to knock over SpaceX's prototype of its next-generation Starship rocket. In a tweet, CEO Elon Musk tweeted yesterday: "50 mph winds broke the mooring blocks late last night & fairing was blown over. Will take a few weeks to repair." He added: "Actual [fuel] tanks are fine." Popular Mechanics reports: The hopper, based out of the company's launch site in Boca Chica, Texas, is not meant for the stars: It is a test machine meant to show that the Starship's fundamentals can work in terms of launching and landing. SpaceX wants the rocket to go 16,400 feet into the air (a hop, so to speak) and land again. The wind, sadly, had other plans and knocked the hopper's nosecone around.

The accident appears to have first reached the public through eagle-eyed SpaceX aficionados on a message board which updates with even the smallest changes in anything related to the company's plans. Their methods include everything from drone flyovers to driving by the site. It's hard to tell what damage has precisely happened to the hopper in its fall, but it appears to be more complex than simply righting back up again.

From a report, based on a book by Cliff Sims, who worked as a communications official for Trump on his presidential campaign and in the West Wing: As the clock ticked down, Trump "suddenly turned toward the NASA administrator." He asked: "What's our plan for Mars?" Lightfoot explained to the president -- who, again, had recently signed a bill containing a plan for Mars -- that NASA planned to send a rover to Mars in 2020 and, by the 2030s, would attempt a manned spaceflight. "Trump bristled," according to Sims. He asked, "But is there any way we could do it by the end of my first term?"

Sims described the uncomfortable exchange that followed the question, with Lightfoot shifting and placing his hand on his chin, hesitating politely and attempting to let Trump down easily, emphasizing the logistical challenges involving "distance, fuel capacity, etc. Also the fact that we hadn't landed an American anywhere remotely close to Mars ever." Sims himself was "getting antsy" by this point. With a number of points left to go over with the president, "all I could think about was that we had to be on camera in three minutes .. And yet we're in here casually chatting about shaving a full decade off NASA's timetable for sending a manned flight to Mars. And seemingly out of nowhere."

Long a suspected source of the virus, bats had not been confirmed as carriers of the lethal disease before. The discovery could help scientists learn more about how the virus infects humans. From a report: For the first time, the type of deadly Ebola virus responsible for recent epidemics in West and Central Africa has been found in a bat, Liberian health officials announced on Thursday. Scientists have long suspected that bats were a natural host of Ebola and a source of some human infections, but until now they had not found any bats that harbored the epidemic species, known as Zaire ebolavirus. Although the bat was found in Liberia, the country has not had any human cases of Ebola since 2016, and the bat was not associated with any illness in people. The finding is preliminary and not yet ready for publication in a peer-reviewed journal, the usual venue for presenting scientific discoveries. Only 20 percent of the bat's genome has been studied, and research on it is continuing.

But because of its potential impact on public health, officials in Liberia wanted to share the information widely as soon as possible. "It's an incomplete study, a work in progress," said Simon J. Anthony, a virologist at Columbia University who has performed genetic analyses on samples from the infected bat. "It feels premature scientifically, but on the other hand, you have the public health aspect. We do have enough data to suggest to me that it is Ebola Zaire in this bat. We agree with our Liberian government partners that this information should be shared." Knowing which types of bat carry Ebola may help health officials prevent outbreaks by educating the public about how to prevent contact with the creatures, scientists said.

We may finally have found the long-elusive cause of Alzheimer's disease: Porphyromonas gingivalis, the key bacteria in chronic gum disease. New Scientist: That's bad, as gum disease affects around a third of all people. But the good news is that a drug that blocks the main toxins of P. gingivalis is entering major clinical trials this year, and research published Wednesday shows it might stop and even reverse Alzheimer's. There could even be a vaccine. Alzheimer's is one of the biggest mysteries in medicine. As populations have aged, dementia has skyrocketed to become the fifth biggest cause of death worldwide. Alzheimer's constitutes some 70 per cent of these cases and yet, we don't know what causes it.

An anonymous reader quotes a report from The Guardian: Science may never tell us what lies round the next corner, but researchers have come up with the nearest thing: a computer program that turns a normal digital camera into a periscope. In a demonstration of "computational periscopy" a U.S. team at Boston University showed they could see details of objects hidden from view by analyzing shadows they cast on a nearby wall. Vivek Goyal, an electrical engineer at the university, said that while the work had clear implications for surveillance he hoped it would lead to robots that could navigate better and boost the safety of driverless cars.

In the latest feat, Goyal and his team used a standard digital camera and a mid-range laptop. The researchers, writing in the journal Nature, describe how they pieced together hidden scenes by pointing the digital camera at the vague shadows they cast on a nearby wall. If the wall had been a mirror the task would have been easy, but a matt wall scatters light in all directions, so the reflected image is nothing but a blur. They found that when an object blocked part of the hidden scene, their algorithms could use the combination of light and shade at different points on the wall to reconstruct what lay round the corner. In tests, the program pieced together hidden images of video game characters -- including details such as their eyes and mouths -- along with colored strips and the letters "BU." The program takes about 48 seconds to work out a hidden scene from a digital image, but the researchers believe it could be sped up with a faster computer. Eventually, it may be fast enough to run on video footage.

Goyal also said "it is even conceivable for humans to be able to learn to see around corners with their own eyes; it does not require anything superhuman."

schwit1 shares a report from Space.com: The weirdly clustered orbits of some far-flung bodies in our solar system can be explained without invoking a big, undiscovered "Planet Nine," a new study suggests. The shepherding gravitational pull could come from many fellow trans-Neptunian objects (TNOs) rather than a single massive world, according to the research. "If you remove Planet Nine from the model, and instead allow for lots of small objects scattered across a wide area, collective attractions between those objects could just as easily account for the eccentric orbits we see in some TNOs," study lead author Antranik Sefilian, a doctoral student in the Department of Applied Mathematics and Theoretical Physics at Cambridge University in England, said in a statement.

The duo's modeling work suggests that the strength-in-numbers explanation does indeed work -- if the mass of the Kuiper Belt, the ring of bodies beyond Neptune, is a few to 10 times that of Earth. This is a pretty big "if," given that most estimates peg the Kuiper Belt's mass at less than 10 percent that of Earth (and one recent study put the figure at 0.02 Earth masses). But other solar systems are known to harbor massive disks of material in their outer reaches, Sefilian and Touma noted. And our failure to spot one around our own sun doesn't mean it doesn't exist, they stressed. The new study has been accepted for publication in the Astronomical Journal.

An anonymous reader shares a report: More Americans are very worried about global warming and say the issue is personally important to them than ever before, according to a new poll released Tuesday. The polling may indicate that extreme weather events -- coupled with a series of grim scientific findings -- over the past year are starting to change peoples' minds about climate change, which could have significant implications for any significant climate legislation passing Congress. The key finding from the new survey from the Yale Program on Climate Change Communication and the George Mason University Center for Climate Change Communication is that Americans increasingly view global warming as a present-day threat to them, rather than an issue that will affect future generations. Nearly half of Americans (46%) said they personally experienced the effects of global warming -- a 15-point spike since March 2015.

The European Space Agency hopes to be mining the moon for water and oxygen in six years' time. From a report: The agency took a big step toward this ambition by signing a deal with launch provider ArianeGroup on Monday. The one-year contract will see the company examine the possibility of mining regolith -- lunar soil and rock fragments that can yield oxygen and water, which could be very handy if you're trying to put a base on the moon. The mission would use an Ariane 64 launch vehicle. The European Space Agency (ESA) has already directed ArianeGroup, a joint venture between Airbus and Safran, to develop the craft, and its first test flight is anticipated in 2020. As for the lunar lander, that would come from the German startup PTScientists (which entertainingly stands for "Part-Time Scientists") -- the same outfit that aims to put the first mobile network on the moon.

Researchers at Ulsan National Institute of Science and Technology (UNIST) and Georgia Tech have developed a new system that absorbs carbon dioxide and produces electricity and useable hydrogen fuel. New Atlas reports: The new device, which the team calls a Hybrid Na-CO2 System, is basically a big liquid battery. A sodium metal anode is placed in an organic electrolyte, while the cathode is contained in an aqueous solution. The two liquids are separated by a sodium Super Ionic Conductor (NASICON) membrane. When CO2 is injected into the aqueous electrolyte, it reacts with the cathode, turning the solution more acidic, which in turn generates electricity and creates hydrogen. In tests, the team reported a CO2 conversion efficiency of 50 percent, and the system was stable enough to run for over 1,000 hours without causing any damage to the electrodes. Unlike other designs, it doesn't release any CO2 as a gas during normal operation -- instead, the remaining half of the CO2 was recovered from the electrolyte as plain old baking soda. The research was published in the journal iScience.

An anonymous reader quotes a report from The New York Times: Slow-moving, hulking ships crisscross miles of ocean in a lawn mower pattern, wielding an array of 12 to 48 air guns blasting pressurized air repeatedly into the depths of the ocean. The sound waves hit the sea floor, penetrating miles into it, and bounce back to the surface, where they are picked up by hydrophones. The acoustic patterns form a three-dimensional map of where oil and gas most likely lie. The seismic air guns probably produce the loudest noise that humans use regularly underwater, and it is about to become far louder in the Atlantic. As part of the Trump administration's plans to allow offshore drilling for gas and oil exploration, five companies have been given permits to carry out seismic mapping with the air guns all along the Eastern Seaboard, from Central Florida to the Northeast, for the first time in three decades. The surveys haven't started yet in the Atlantic, but now that the ban on offshore drilling has been lifted, companies can be granted access to explore regions along the Gulf of Mexico and the Pacific. And air guns are now the most common method companies use to map the ocean floor.

Some scientists say the noises from air guns, ship sonar and general tanker traffic can cause the gradual or even outright death of sea creatures, from the giants to the tiniest — whales, dolphins, fish, squid, octopuses and even plankton. Other effects include impairing animals' hearing, brain hemorrhaging and the drowning out of communication sounds important for survival, experts say. So great is the growing din in the world's oceans that experts fear it is fundamentally disrupting the marine ecosystem, diminishing populations of some species as the noise levels disturb feeding, reproduction and social behavior. A 2017 study, for example, found that a loud blast, softer than the sound of a seismic air gun, killed nearly two-thirds of the zooplankton in three-quarters of a mile on either side. Tiny organisms at the bottom of the food chain, zooplankton provide a food source for everything from great whales to shrimp. Krill, a tiny crustacean vital to whales and other animals, were especially hard hit, according to one study.