Encryption

Equipment Already In Space Can Be Adapted For Extremely Secure Data Encryption (helpnetsecurity.com) 20

Orome1 quotes a report from Help Net Security: In a new study, researchers from the Max Planck Institute in Erlangen, demonstrate ground-based measurements of quantum states sent by a laser aboard a satellite 38,000 kilometers above Earth. This is the first time that quantum states have been measured so carefully from so far away. A satellite-based quantum-based encryption network would provide an extremely secure way to encrypt data sent over long distances. Developing such a system in just five years is an extremely fast timeline since most satellites require around 10 years of development. For the experiments, the researchers worked closely with satellite telecommunications company Tesat-Spacecom GmbH and the German Space Administration. The German Space Administration previously contracted with Tesat-Spacecom on behalf of the German Ministry of Economics and Energy to develop an optical communications technology for satellites. This technology is now being used commercially in space by laser communication terminals onboard Copernicus -- the European Union's Earth Observation Program -- and by SpaceDataHighway, the European data relay satellite system. It turned out that this satellite optical communications technology works much like the quantum key distribution method developed at the Max Planck Institute. Thus, the researchers decided to see if it was possible to measure quantum states encoded in a laser beam sent from one of the satellites already in space. In 2015 and the beginning of 2016, the team made these measurements from a ground-based station at the Teide Observatory in Tenerife, Spain. They created quantum states in a range where the satellite normally does not operate and were able to make quantum-limited measurements from the ground. The findings have been published in the journal Optica.
Space

NASA Finds Evidence Of 10 New Earth-sized Planets (usatoday.com) 63

NASA said Monday it has found new evidence of 219 planets outside our Solar System. Ten of those exoplanets appear to be similar to the size of the Earth and orbit their stars in the habitable zone. From a report: The new planets' existence must still be double-checked. But Kepler's latest haul -- which includes a planet that is only slightly larger than Earth and receives the same amount of energy from its sun as Earth -- is the latest triumph for Kepler, which has spotted roughly 80 percent of the planets orbiting stars other than our sun. Because of their potential for hosting life, the 10 Earth-size planets are the most glamorous of the newly announced planets from Kepler. But those 10 were joined by an additional 209 more garden-variety planets that are unlikely to be hospitable to life because they are too gassy, too hot, too cold or otherwise unlike the only known planet to host life: Earth.
Education

Physicists Discover A Possible Break In the Standard Model of Physics (futurism.com) 259

Slashdot reader freddienumber13 write: A series of experiments has shown that tau particles have decayed faster than predicted by the standard model. This has been observed at both CERN and SLAC. This suggests that the standard model for particle physics is incomplete and further research is required to understand this new area of physics.
Nature adds: One of the key assumptions of the standard model of particle physics is that the interactions of the charged leptons, namely electrons, muons and taus, differ only because of their different masses... recent studies of B-meson decays involving the higher-mass tau lepton have resulted in observations that challenge lepton universality at the level of four standard deviations. A confirmation of these results would point to new particles or interactions, and could have profound implications for our understanding of particle physics.
Medicine

Research Suggests Effects of Shift Work or Jet Lag On Our Body Clocks Can Be Reduced By Simply Changing Meal Times (qz.com) 51

Jonathan Johnston reports via Quartz: Around one in five people in Western countries could be putting their health at risk simply by going to work. This is because working shifts outside of the rest of the population's normal hours has been linked to obesity, diabetes, heart disease, cancer and even declines in brain function. Scientists think this is because our bodies are programmed to run on cycles known as circadian rhythms, and changes in our routine caused by shift work or traveling long distances disrupts those rhythms. But our new research suggests that the effects of shift work or jet lag on our body clocks could be reduced simply by changing the times at which people eat. The key to this theory is the idea that each person doesn't just have a single body clock but rather a complex network of billions of cellular clocks found throughout the body. In humans and other mammals, there is a master clock within a region of the brain called the suprachiasmatic nuclei (SCN) and many peripheral clocks found elsewhere. For our research, we wanted to see how one aspect of this approach -- changing meal times -- affected circadian rhythms. We found that delaying meals by a certain amount caused a similar shift in some peripheral clocks, without changing the master clock. This is important because research in animals suggests peripheral clocks take longer to adjust to a new routine.
The Almighty Buck

Air Force Budget Reveals How Much SpaceX Undercuts Launch Prices (arstechnica.com) 97

An anonymous reader quotes a report from Ars Technica: In 2014, the U.S. Government Accountability Office issued a report on cost estimates for the U.S. Air Force's program to launch national security payloads, which at the time consisted of a fleet of rockets maintained and flown entirely by United Launch Alliance (ULA). The report was critical of the non-transparent nature of ULA's launch prices and noted that the government "lacked sufficient knowledge to negotiate fair and reasonable launch prices" with the monopoly. At around the same time, the new space rocket company SpaceX began to aggressively pursue the opportunity to launch national security payloads for the government. SpaceX claimed to offer a substantially lower price for delivering satellites into various orbits around Earth. But because of the lack of transparency, comparing prices was difficult. The Air Force recently released budget estimates for fiscal year 2018, and these include a run out into the early 2020s. For these years, the budget combines the fixed price rocket and ELC contract costs into a single budget line. (See page 109 of this document). They are strikingly high. According to the Air Force estimate, the "unit cost" of a single rocket launch in fiscal year 2020 is $422 million, and $424 million for a year later. SpaceX sells basic commercial launches of its Falcon 9 rocket for about $65 million. But, for military launches, there are additional range costs and service contracts that add tens of millions of dollars to the total price. It therefore seems possible that SpaceX is taking a loss or launching at little or no profit to undercut its rival and gain market share in the high-volume military launch market. Elon Musk retweeted the article, adding "$300M cost diff between SpaceX and Boeing/Lockheed exceeds avg value of satellite, so flying with SpaceX means satellite is basically free."
Medicine

Watchdog Report Finds Alarming 20 Percent of Baby Food Tested Contains Lead (arstechnica.com) 192

According to an analysis released Thursday by the nonprofit advocacy group, the Environmental Defense Fund, twenty percent of 2,164 baby foods sampled between 2003 and 2013 by the Food and Drug Administration tested positive for lead. Ars Technica reports: Lead is a neurotoxin. Exposure at a young age can permanently affect a developing brain, causing lifelong behavioral problems and lower IQ. Though the levels in the baby food were generally below what the FDA considers unsafe, the agency's standards are decades old. The latest research suggests that there is no safe level of lead for children. Yet the Environmental Protection Agency this year has estimated that more than five percent of U.S. children (more than a million) get more than the FDA's recommended limit of lead from their diet. The products most often found to contain lead were fruit juices, root vegetable-based foods, and certain cookies, such as teething biscuits, the EDF reports. Oddly, the presence of lead was more common in baby foods than in the same foods marketed for adults. For instance, only 25 percent of regular apple juice tested positive for lead, while 55 percent of apple juices marketed for babies contained lead. Overall, only 14 percent of adult foods tested contained lead. The findings come from data collected in the FDA's annual survey of foods, called the Total Diet Survey, which the agency has run since the 1970s. Each year, the agency samples 280 types of foods from three different cities across the country, tracking nutrients, metals, pesticides, and other contaminants.
Earth

Life On Mars: Elon Musk Reveals Details of His Colonisation Vision 229

Elon Musk has put his Mars-colonization vision to paper, and you can read it for free. SpaceX's billionaire founder and CEO published the plan, which he unveiled at a conference in Mexico in September 2016, in the journal New Space. From a report: The paper outlines early designs of the gigantic spacecraft, designed to carry 100 passengers, that he hopes to construct. "The thrust level is enormous," the paper states. "We are talking about a lift-off thrust of 13,000 tons, so it will be quite tectonic when it takes off." Creating a fully self-sustained civilisation of around one million people -- the ultimate goal -- would take 40-100 years according to the plans. Before full colonisation takes place, though, Musk needs to entice the first pioneers to pave the way.
Education

Mathematical Biology Is Our Secret Weapon In the Fight Against Disease (scientificamerican.com) 57

An anonymous reader shares excerpts from a Scientific American article: In recent years, increasingly detailed experimental procedures have lead to a huge influx in the biological data available to scientists. This data is being used to generate hypotheses about the complexity of previously abstruse biological systems. In order to test these hypotheses, they must be written down in the form of a model which can be interrogated to determine whether it correctly mimics the biological observations. Mathematics is the natural language in which to do this. In addition, the advent of, and subsequent increase in, computational ability over the last 60 years has enabled us to suggest and then interrogate complex mathematical models of biological systems. The realisation that biological systems can be treated mathematically, coupled with the computational ability to build and investigate detailed biological models, has led to the dramatic increase in the popularity of mathematical biology. Maths has become a vital weapon in the scientific armoury we have to tackle some of the most pressing questions in medical, biological and ecological science in the 21st century. By describing biological systems mathematically and then using the resulting models, we can gain insights that are impossible to access though experiments and verbal reasoning alone. Mathematical biology is incredibly important if we want to change biology from a descriptive into a predictive science -- giving us power, for example, to avert pandemics or to alter the effects of debilitating diseases.
Math

The Quirky Habits of Certified Science Geniuses (bbc.com) 190

dryriver shares a report from the BBC: Celebrated inventor and physicist Nikola Tesla swore by toe exercises -- every night, he'd repeatedly "squish" his toes, 100 times for each foot, according to the author Marc J Seifer. While it's not entirely clear exactly what that exercise involved, Tesla claimed it helped to stimulate his brain cells. The most prolific mathematician of the 20th Century, Paul Erdos, preferred a different kind of stimulant: amphetamine, which he used to fuel 20-hour number benders. When a friend bet him $500 that he couldn't stop for a month, he won but complained "You've set mathematics back a month." Newton, meanwhile, bragged about the benefits of celibacy. When he died in 1727, he had transformed our understanding of the natural world forever and left behind 10 million words of notes; he was also, by all accounts, still a virgin (Tesla was also celibate, though he later claimed he fell in love with a pigeon). It's common knowledge that sleep is good for your brain -- and Einstein took this advice more seriously than most. He reportedly slept for at least 10 hours per day -- nearly one and a half times as much as the average American today (6.8 hours). But can you really slumber your way to a sharper mind? Many of the world's most brilliant scientific minds were also fantastically weird. From Pythagoras' outright ban on beans to Benjamin Franklin's naked "air baths," the path to greatness is paved with some truly peculiar habits.
Space

New Evidence That All Stars Are Born In Pairs (phys.org) 90

InfiniteZero shares a report from Phys.Org: Did our sun have a twin when it was born 4.5 billion years ago? Almost certainly yes -- though not an identical twin. And so did every other sun-like star in the universe, according to a new analysis by a theoretical physicist from UC Berkeley and a radio astronomer from the Smithsonian Astrophysical Observatory at Harvard University. The new assertion is based on a radio survey of a giant molecular cloud filled with recently formed stars in the constellation Perseus, and a mathematical model that can explain the Perseus observations only if all sunlike stars are born with a companion. "We ran a series of statistical models to see if we could account for the relative populations of young single stars and binaries of all separations in the Perseus molecular cloud, and the only model that could reproduce the data was one in which all stars form initially as wide (more than 500 astronomical units) binaries," said co-author Steven Stahler, a UC Berkeley research astronomer. "These systems then either shrink or break apart within a million years." The study has been published in April on the arXiv server.
ISS

US Spy Satellite Buzzes ISS (arstechnica.com) 121

The spy satellite that SpaceX launched about six weeks ago appears to have buzzed the International Space Station in early June. The fly-by was made by a dedicated group of ground-based observers who continued to track the satellite after it reach outer space. Ars Technica reports: One of the amateur satellite watchers, Ted Molczan, estimated the pass on June 3 to be 4.4km directly above the station. Another, Marco Langbroek, pegged the distance at 6.4km. "I am inclined to believe that the close conjunctions between USA 276 and ISS are intentional, but this remains unproven and far from certain," Molczan later wrote. One expert in satellite launches and tracking, Jonathan McDowell, said of the satellite's close approach to the station, "It is not normal." While it remains possible that the near-miss was a coincidence due to the satellite being launched into similar orbit, that would represent "gross incompetence" on the part of the National Reconnaissance Office, he said. Like the astronaut, McDowell downplayed the likelihood of a coincidence. Another option is that of a deliberate close flyby, perhaps to test or calibrate an onboard sensor to observe something or some kind of activity on the International Space Station. "The deliberate explanation seems more likely, except that I would have expected the satellite to maneuver after the encounter," McDowell said. "But it seems to have stayed in the same orbit."
Government

11 States Sue Trump Administration's Energy Department After Weeks of No Movement On Efficiency Standards (go.com) 219

An anonymous reader quotes a report from ABC News: New York, California and nine other states sued the Trump administration Tuesday over its failure to finalize energy-use limits for portable air conditioners and other products. The new standards would reduce greenhouse gas emissions, save businesses and consumers billions of dollars, and conserve enough energy to power more than 19 million households for a year, but the U.S. Department of Energy has not met a requirement to publish them by now, according to attorneys general who filed the lawsuit (PDF) against the DOE in federal court in San Francisco. That means the standards are not legally enforceable. The other states in the lawsuit are: Connecticut, Illinois, Maine, Vermont, Washington, Massachusetts, Pennsylvania, Oregon and Maryland. The City of New York is also a plaintiff. The energy efficiency standards at issue in the lawsuit also cover walk-in coolers and freezers, air compressors, commercial packaged boilers and uninterruptible power supplies. There is currently no federal energy standard for air compressors, uninterruptible power supplies or portable air conditioners, according to the lawsuit. The lawsuit seeks a court order requiring the DOE to publish the new standards as final rules.
Education

Wisconsin Speech Bill Might Allow Students To Challenge Science Professors (arstechnica.com) 438

An anonymous reader quotes a report from Ars Technica: There have been some well-publicized incidents in which student groups or other protesters have interfered with scheduled appearances by right-wing speakers at U.S. universities. In response, a number of states have considered "campus free speech" bills based on model legislation produced by the Goldwater Institute, a conservative think tank. Different bills introduce specific penalties for students who shout down the speech of others and prevent college administrators from disinviting speakers, to give two examples. One such bill is being debated in Wisconsin. Faculty and university officials in the state are concerned about what else might be prevented by the bill's overly vague language, according to the local Cap Times. As often happens with bills relevant to science education, the debate has also elicited some rather bizarre comments from the bill's sponsors. The trouble comes from this section of the bill: "That each institution shall strive to remain neutral, as an institution, on the public policy controversies of the day, and may not take action, as an institution, on the public policy controversies of the day in such a way as to require students or faculty to publicly express a given view of social policy." While the bills' scope is focused on public events involving invited speakers, there are a couple key questions here. University officials want to know how far this requirement "to remain neutral" extends. For example, the University of Wisconsin-Madison has spoken out against proposed bans on stem cell research on campus. Would the university run afoul of this law if it did so again?
Businesses

E-cigarettes 'Potentially As Harmful As Tobacco Cigarettes' (uconn.edu) 362

An anonymous reader shares a report: A study by chemists at the University of Connecticut offers new evidence that electronic cigarettes, or e-cigarettes, are potentially as harmful as tobacco cigarettes. Using a new low-cost, 3-D printed testing device, UConn researchers found that e-cigarettes loaded with a nicotine-based liquid are potentially as harmful as unfiltered cigarettes when it comes to causing DNA damage. The researchers also found that vapor from non-nicotine e-cigarettes caused as much DNA damage as filtered cigarettes, possibly due to the many chemical additives present in e-cigarette vapors. Cellular mutations caused by DNA damage can lead to cancer.
Medicine

US Government Task Force Urges Cash Incentives For Ditching Insecure Medical Devices (securityledger.com) 64

chicksdaddy shares this report from The Security Ledger: The healthcare sector in the U.S. is in critical condition and in dire need of an overhaul to address widespread and systemic information security weakness that puts patient privacy and even safety at risk, a Congressional Task Force has concluded... On the controversial issue of medical device security, the report suggests that the Federal government and industry might use incentives akin to the "cash for clunkers" car buyback program to encourage healthcare organizations to jettison insecure, legacy medical equipment...

The report released to members of both the U.S. Senate and House of Representatives on Friday concludes that the U.S. healthcare system is plagued by weaknesses, from the leadership and governance of information security within healthcare organizations, to the security of medical devices and medical laboratories to hiring and user awareness. Many of the risks directly affect patient safety, the group found. It comes amid growing threats to healthcare organizations, including a ransomware outbreak that affected scores of hospitals in the United Kingdom.

Joshua Corman, the Director of the Cyber Statecraft Initiative at The Atlantic Council, argues that currently "Healthcare is target rich and resource poor," adding a special warning about the heavy usage of internet-connected healthcare equipment. "If you can't afford to protect it, you can't afford to connect it."
Space

SpaceX Releases Ultra-HD 4K Footage Of Falcon 9 Landing (4k.com) 68

An anonymous reader quotes 4K.com: On June 3, SpaceX's Falcon 9 rocket was placed into low-orbit for the sake of launching its Dragon spacecraft into their eleventh Commercial Resupply Services mission (CRS-11) to the International Space Station... Last week SpaceX shared on their Youtube channel the remarkable 4K UHD footage of the landing, and since many of us are not used to watching this kind of footage except for Sci-Fi movies or video games, the landing seems almost Hollywood-level surreal, especially since it happens so quickly and accurately. You can watch the video at 4k and 60 fps here if you happen to own a 4K TV or UHD PC monitor with the right hardware specs... The footage above isn't SpaceX's first 4K video of one of its launches. The company has also previously released other videos of even more impressive landings directly onto the surfaces of drone ships.
The article also reminds readers that "If you are by any chance looking to send something or someone out of space, Elon Musk's company offers reasonable prices for their launching services, starting at $62 million for its Falcon 9 and $90 million for the Falcon Heavy."
Space

Has the 40-year Old Mystery of the 'Wow!' Signal Been Solved? (newatlas.com) 85

"Astronomers have confirmed that the Wow! signal, thought to be the most promising detection by SETI of alien life, was actually caused by a comet," writes schwit1. New Atlas reports: Last year, a group of researchers from the Center of Planetary Science proposed a new hypothesis that argued a comet might be the culprit. The frequency could be caused by the hydrogen cloud they carry, and the fact that they move accounts for why it seemingly disappeared. Two comets, named 266/P Christensen and P/2008 Y2 (Gibbs), happened to be transiting through that region of space when the Wow! signal was detected, but they weren't discovered until after 2006. To test the hypothesis, the team made 200 radio spectrum observations between November 2016 and February 2017. Sure enough, 266/P Christensen was found to emit radio waves at a frequency of 1,420 MHz, and to double check, the researchers moved their radio telescope by one degree. As expected, the signal vanished, and only returned when the telescope was trained back on the comet.
Medicine

Cancer Drug Proves To Be Effective Against Multiple Tumors (nytimes.com) 81

An anonymous reader writes: 86 cancer patients were enrolled in a trial of a drug that helps the immune system attack tumors. Though they had different kinds of tumor -- pancreas, prostate, uterus or bone -- they all shared a genetic mutation that disrupts their cells' ability to fix damaged DNA, found in 4% of all cancer patients. But tumors vanished and didn't return for 18 patients in the study, reports the New York Times, while 66 more patients "had their tumors shrink substantially and stabilize, instead of continuing to grow." The drug trial results were "so striking that the Food and Drug Administration already has approved the drug, pembrolizumab, brand name Keytruda, for patients whose cancers arise from the same genetic abnormality. It is the first time a drug has been approved for use against tumors that share a certain genetic profile, whatever their location in the body."
The researchers say that just in the U.S. there are 60,000 new patients every year who could benefit from the new drug.
Medicine

Home Blood Pressure Monitors Are Wrong 70 Percent of the Time, Says Study (arstechnica.com) 90

An anonymous reader quotes a report from Ars Technica: In a study out this week, about 70 percent of home blood-pressure devices tested were off by 5 mmHg or more. That's enough to throw off clinical decisions, such as stopping or starting medication. Nearly 30 percent were off by 10 mmHg or more, including many devices that had been validated by regulatory agencies. The findings, published in The American Journal of Hypertension, suggest that consumers should be cautious about picking out and using such devices -- and device manufacturers need to step up their game. Lead author Raj Padwal and his colleagues set out to test the accuracy of the devices themselves. Funded by the University of Alberta Hospital Foundation, they compared the home blood-pressure monitors of 85 patients with a gold-standard blood-pressure measurement technique. The patients' monitors varied by type, age, and validation-status. But they all used an automated oscillometric method, which measures oscillations in the brachial artery and uses an algorithm to calculate blood pressure. The gold-standard method was the old-school auscultatory method, which involves the arm-squeezing sphygmomanometer and a clinician listening for thumps with a stethoscope. Of the 85 home devices, 59 were inaccurate by 5 mmHg or more in either their systolic (the top number that's the maximum pressure of a heart beat) or diastolic (the bottom number that's the minimum between-beat pressure). That's 69 percent inaccurate. Of those, 25 (or 29 percent) were off by 10 mmHg or more. And six devices (seven percent) were off by 15 mmHg or more.
The Almighty Buck

US Pays Farmers Billions To Save The Soil. But It's Blowing Away (npr.org) 186

An anonymous reader shares an NPR report: Soil has been blowing away from the Great Plains ever since farmers first plowed up the prairie. It reached crisis levels during the Dust Bowl of the 1930s, when windblown soil turned day into night. In recent years, dust storms have returned, driven mainly by drought. But Shook -- and others -- say farmers are making the problem worse by taking land where grass used to grow and plowing it up, exposing vulnerable soil. This is where federal policy enters the picture. Most of that grassland was there in the first place because of a taxpayer-funded program. The U.S. Department of Agriculture rents land from farmers across the country and pays them to grow grass, trees and wildflowers in order to protect the soil and also provide habitat for wildlife. It's called the Conservation Reserve Program, or CRP. Ten years ago, there was more land in the CRP than in the entire state of New York. In North Dakota, CRP land covered 5,000 square miles. But CRP agreements only last 10 years, and when farming got more profitable about a decade ago, farmers in North Dakota pulled more than half of that land out of the CRP to grow crops like corn and soybeans. Across the country, farmers decided not to re-enroll 15.8 million acres of farmland in the CRP when those contracts expired between 2007 and 2014.

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