Ben Nowack, a 26-year old inventor and CEO of Tons of Mirrors, is trying to use satellite-mounted reflective surfaces to redirect sunlight to earthbound solar panels at night. In an interview with Motherboard, Nowack explains what inspired this idea and how he can turn his concept into reality. Here's an excerpt from the report: What was the initial idea? I had an interesting way to solve the real issue with solar power. It's this unstoppable force. Everybody's installing so many solar panels everywhere. It's really a great candidate to power humanity. But sunlight turns off, it's called nighttime. If you solve that fundamental problem, you fix solar everywhere.

Where did the idea come from? I was watching a YouTube video called The Problem with Solar Energy in Africa. It was basically saying that you need three times as many solar panels in Germany as you do in the Sahara Desert and you can't get the power from the Sahara to Germany in an easy way. I thought, what if you could beam the sunlight and then reflect it with mirrors, and put that light into laser beam vacuum tubes that zigzag around the curvature of the Earth. It could be this beam that comes in just like power companies, this tube full of infinite light. That was the initial idea. But the approach was completely economically unworkable. I was like, this is not going to compete with solar in 10 years. I should just completely give up and do something else. Then I was on a run two days later and thought what if I put that thing that turns sunlight into a beam in orbit then you don't have to build a vacuum tube anymore. And it's so much more valuable because you can shine sunlight on solar farms that already exist. Then I developed several more technologies which I know for a fact no one else is working on. That made the model even more economical.

Are these just like regular household mirrors, but fixed to a satellite? If you did that, the light would go to too many places. The sun is a certain size. It's not a point, it has a distance across. The light from one side of the sun would bounce off your mirror, and the light from the other side would also bounces off your mirror. If you used a perfectly flat mirror, every single microscopic piece would have this angle of diverging light coming from it. By the time the reflection hit Earth, you'd get a 3.6 kilometer diameter spot, which is gigantic. There are only 10 solar farms that big. So I did the math, and figured out that if I could hit a 500-meter spot instead of a 3,600-meter spot, then I'd be able to hit 44 times more solar sites per orbit.

A rocket crashed back to Earth shortly after liftoff Monday in the first launch accident for Jeff Bezos' space travel company, but the capsule carrying experiments managed to parachute to safety. From a report: No one was aboard the Blue Origin flight, which used the same kind of rocket as the one that sends paying customers to the edge of space. The rockets are now grounded pending the outcome of an investigation, the Federal Aviation Administration said.

The New Shepard rocket was barely a minute into its flight from West Texas when bright yellow flames shot out from around the single engine at the bottom. The capsule's emergency launch abort system immediately kicked in, lifting the craft off the top. Several minutes later, the capsule parachuted onto the remote desert floor. The rocket came crashing down, with no injuries or damage reported, said the FAA, which is in charge of public safety during commercial space launches and landings. Blue Origin's launch commentary went silent when the capsule catapulted off the rocket Monday morning, eventually announcing: "It appears we've experienced an anomaly with today's flight. This wasn't planned."

Doctors have told health services to prepare for a new era of cancer screening after a study found a simple blood test could spot multiple cancer types in patients before they develop clear symptoms. From a report: The Pathfinder study offered the blood test to more than 6,600 adults aged 50 and over, and detected dozens of new cases of disease. Many cancers were at an early stage and nearly three-quarters were forms not routinely screened for. It is the first time results from the Galleri test, which looks for cancer DNA in the blood, have been returned to patients and their doctors, to guide cancer investigations and any necessary treatment.

The Galleri test has been described as a potential "gamechanger" by NHS England, which is due to report results from a major trial involving 165,000 people next year. Doctors hope the test will save lives by detecting cancer early enough for surgery and treatment to be more effective, but the technology is still in development. "I think what's exciting about this new paradigm and concept is that many of these were cancers for which we do not have any standard screening," Dr Deb Schrag, a senior researcher on the study at the Memorial Sloan Kettering Cancer Center in New York, told the European Society for Medical Oncology meeting in Paris on Sunday.

An anonymous reader shares a report: The global obesity epidemic is getting worse, especially among children, with rates of obesity rising over the past decade and shifting to earlier ages. In the US, roughly 40% of today's high school students were overweight by the time they started high school. Globally, the incidence of obesity has tripled since the 1970s, with fully one billion people expected to be obese by 2030. The consequences are grave, as obesity correlates closely with high blood pressure, diabetes, heart disease and other serious health problems. Despite the magnitude of the problem, there is still no consensus on the cause, although scientists do recognize many contributing factors, including genetics, stress, viruses and changes in sleeping habits. Of course, the popularity of heavily processed foods -- high in sugar, salt and fat -- has also played a role, especially in Western nations, where people on average consume more calories per day now than 50 years ago. Even so, recent reviews of the science conclude that much of the huge rise in obesity globally over the past four decades remains unexplained.

An emerging view among scientists is that one major overlooked component in obesity is almost certainly our environment -- in particular, the pervasive presence within it of chemicals which, even at very low doses, act to disturb the normal functioning of human metabolism, upsetting the body's ability to regulate its intake and expenditure of energy. Some of these chemicals, known as "obesogens," directly boost the production of specific cell types and fatty tissues associated with obesity. Unfortunately, these chemicals are used in many of the most basic products of modern life including plastic packaging, clothes and furniture, cosmetics, food additives, herbicides and pesticides. Ten years ago the idea of chemically induced obesity was something of a fringe hypothesis, but not anymore.

"Scientists have uncovered how air pollution causes lung cancer," reports the Guardian, "in groundbreaking research that promises to rewrite our understanding of the disease."

The BBC is calling it "a discovery that completely transforms our understanding of how tumours arise." The team at the Francis Crick Institute in London showed that rather than causing damage, air pollution was waking up old damaged cells. One of the world's leading experts, Prof Charles Swanton, said the breakthrough marked a "new era". And it may now be possible to develop drugs that stop cancers forming.

The findings could explain how hundreds of cancer-causing substances act on the body. The classical view of cancer starts with a healthy cell. It acquires more and more mutations in its genetic code, or DNA, until it reaches a tipping point. Then it becomes a cancer and grows uncontrollably.... The researchers have produced evidence of a different idea. The damage is already there in our cell's DNA, picked up as we grow and age, but something needs to pull the trigger that actually makes it cancerous....

Around one in every 600,000 cells in the lungs of a 50-year-old already contains potentially cancerous mutations. These are acquired as we age but appear completely healthy until they are activated by the chemical alarm and become cancerous. Crucially, the researchers were able to stop cancers forming in mice exposed to air pollution by using a drug that blocks the alarm signal.

The results are a double breakthrough, both for understanding the impact of air pollution and the fundamentals of how we get cancer.

Long-time Slashdot reader theodp writes: A new study on the Impact of Programming on Primary Mathematics Learning (abstract only, full article $24.95 on ScienceDirect) is generating some buzz on Twitter amongst K-12 CS educator types. It concluded that:

1. Programming did not benefit mathematics learning compared to traditional activities
2. There's a negative though small effect of programming on mathematics learning
3. Mindful "high-road transfer" from programming to mathematics is not self-evident
4. Visual programming languages might distract students from mathematics activities

From the Abstract: "The aim of this study is to investigate whether a programming activity might serve as a learning vehicle for mathematics acquisition in grades four and five.... Classes were randomly assigned to the programming (with Scratch) and control conditions. Multilevel analyses indicate negative effects (effect size range 0.16 to 0.21) of the programming condition for the three mathematical notions.

"A potential explanation of these results is the difficulties in the transfer of learning from programming to mathematics."

The findings of the new study come 4+ years after preliminary results were released from the $1.5M 2015-2019 NSF-funded study Time4CS, a "partnership between Broward County Public Schools (FL), researchers at the University of Chicago, and [tech-bankrolled] Code.org," which explored whether learning CS using Code.org's CS Fundamentals curriculum may be linked to improved learning in math at the grade 3-5 level. Time4CS researchers concluded that the "quasi-experimental" study showed that "No significant differences in Florida State Assessment mathematics scores resulted between treatment and comparison groups."

China is claiming it discovered a new lunar mineral in moon samples it retrieved in 2020. From the South China Morning Post: The mineral, called Changesite-(Y), was found in rock and dust samples retrieved from the moon by China's Chang'e-5 mission, the nation's first mission to return a lunar sample, which launched in 2020.

A research team from the Beijing Research Institute of Uranium Geology, a subsidiary of the China National Nuclear Corporation (CNNC), isolated a single crystalline particle of the material from more than 140,000 lunar particles using hi-tech processes, including X-ray diffraction, according to Wang Xuejun, a party official with the CNNC. The particle was about 10 microns in diameter, or about one-tenth of a human hair, Wang told a press conference on Friday....

Meanwhile, Wang added that the research team had for the first time measured the concentration of a future fusion energy source, in the lunar sample. "It provides fundamental scientific data for future assessment of helium-3 in lunar samples and their exploration," Wang said.
If confirmed, it would provide "more basic scientific data for the evaluation and development of lunar resources," according to an executive with the China Atomic Energy Authority, while also deepening mankind's knowledge of the solar system. (It would be the sixth new mineral discovered on the moon.)

Speaking at a press conference, he told the audience that China "has also become the third country to retrieve lunar samples and discover new lunar minerals after the U.S. and Russia." The article points out that China hopes to land another sample-collecting probe to the moon "around 2024," and that a senior lunar program designer said China "could" land astronauts on the moon by 2030.

SiFive is the first company to produce a chip implementing the RISC-V ISA.

They've now been selected to provide the core CPU for NASA's next generation High-Performance Spaceflight Computing processor (or HSPC), according to a SiFive announcement: HPSC is expected to be used in virtually every future space mission, from planetary exploration to lunar and Mars surface missions.

HPSC will utilize an 8-core, SiFive® Intelligence X280 RISC-V vector core, as well as four additional SiFive RISC-V cores, to deliver 100x the computational capability of today's space computers. This massive increase in computing performance will help usher in new possibilities for a variety of mission elements such as autonomous rovers, vision processing, space flight, guidance systems, communications, and other applications....

The SiFive X280 is a multi-core capable RISC-V processor with vector extensions and SiFive Intelligence Extensions and is optimized for AI/ML compute at the edge. The X280 is ideal for applications requiring high-throughput, single-thread performance while under significant power constraints. The X280 has demonstrated a 100x increase in compute capabilities compared to today's space computers..

In scientific and space workloads, the X280 provides several orders of magnitude improvement compared to competitive CPU solutions.
A business development executive at SiFive says their X280 core "demonstrates orders of magnitude performance gains over competing processor technology," adding that the company's IP "allows NASA to take advantage of the support, flexibility, and long-term viability of the fast-growing global RISC-V ecosystem.

"We've always said that with SiFive the future has no limits, and we're excited to see the impact of our innovations extend well beyond our planet."

And their announcement stresses that open hardware is a win for everybody: The open and collaborative nature of RISC-V will allow the broad academic and scientific software development community to contribute and develop scientific applications and algorithms, as well optimizing the many math functions, filters, transforms, neural net libraries, and other software libraries, as part of a robust and long-term software ecosystem.

Slashdot reader storagedude writes: Nearly a quarter of healthcare organizations hit by ransomware attacks experienced an increase in patient mortality, according to a new study from Ponemon Institute and Proofpoint.

The report, "Cyber Insecurity in Healthcare: The Cost and Impact on Patient Safety and Care," surveyed 641 healthcare IT and security practitioners and found that the most common consequences of cyberattacks are delayed procedures and tests, resulting in poor patient outcomes for 57% of the healthcare providers, followed by increased complications from medical procedures. The type of attack most likely to have a negative impact on patient care is ransomware, leading to procedure or test delays in 64% of the organizations and longer patient stays for 59% of them.

The Ponemon report depends on the accuracy of self-reporting and thus doesn't have the weight of, say, an epidemiological study that looks at hospital mortality baseline data before and after an attack, but the data is similar to what Ponemon has found in the past and there have been a number of reports of patient deaths and other complications from ransomware attacks.

The new report found that 89% of the surveyed organizations have experienced an average of 43 attacks in the past year. The most common types of attacks were cloud compromise, ransomware, supply chain, and business email compromise (BEC)/spoofing/phishing.

The Internet of Medical Things (IoMT) is a top concern for survey participants. Healthcare organizations have an average of more than 26,000 network-connected devices, yet only 51% of the surveyed organizations include them in their cybersecurity strategy.

Healthcare organizations are better at cloud security, with 63% taking steps to prepare for and respond to cloud compromise attacks, and 62% have taken steps to prevent and respond to ransomware — but that still leaves nearly 40% of healthcare organizations more vulnerable than they should be.

Preparedness is even worse for supply chain attacks and BEC, with only 44% and 48% having a documented response to those attacks, respectively.

The high costs of healthcare cyberattacks — an average of $4.4 million — mean that healthcare cybersecurity tools likely have a high ROI, even though roughly half of the survey respondents say they lack sufficient staffing and in-house expertise.

America's Department of Agriculture and NASA recently announced the Artemis Moon Trees Program. After the first launch of its SLS super-heavy-lift launch vehicle, "the seeds carried on Artemis I will be grown into seedlings by the Forest Service and distributed to locations across the U.S."

But it's just part of a larger initiative. The U.S. government announced Friday that it's working with "a new coalition of space companies that will focus on increasing the space industry's capacity to meet the rising demand for the skilled technical workforce" — partly by inspiring and educating the next generation. This coalition includes Lockheed Martin, Northrop Grumman, Boeing, Blue Origin, Jacobs, L3Harris, Planet Labs PBC, Rocket Lab, Sierra Space, Space X and Virgin Orbit.

Long-time Slashdot reader theodp writes: Yesterday at the second convening of America's National Space Council, Vice President Kamala Harris announced "new commitments from the U.S. government, private sector companies, education and training providers, and philanthropic organizations to support space-related STEM initiatives to inspire, prepare, and employ the next generation of the space workforce..." according to a statement from the White House, "to address the challenges of today and prepare for the discoveries of tomorrow...."

Among those anchoring the Administration's efforts to increase the space industry's capacity to meet the rising demand for the skilled technical workforce is Amazon founder Jeff Bezos' space tourism company Blue Origin, which will be joined by industry partner Amazon to inspire youth to pursue space STEM careers. "Blue Origin's Club for the Future," the White House explains, "is launching Space Days to engage millions of students, teachers and school administrators in the excitement of space and space careers." Club for the Future, as reported earlier on Slashdot, is the Blue Origin founded-and-funded tax-exempt foundation that received the $28 million proceeds of a single auctioned ticket to accompany Bezos on Blue Origin's maiden 11-minute space tourism flight in June 2021. The nonprofit's mission is "to inspire future generations to pursue careers in STEM and to help invent the future of life in space."

The White House also announced that Amazon and Bezos-funded nonprofit Code.org "will highlight connections between computer science and space exploration in the 2022 Hour of Code. Students will have the opportunity to explore and develop coding skills through engaging, space-themed tutorials and create shareable projects. Through a collaboration with NASA, the U.S. Space Force, America's Department of Energy, and the U.S. Geological Survey, students will also learn about different careers and pathways for space careers in these agencies. Code.org reaches approximately 15 million students annually." Amazon reported in 2018 on its efforts to accelerate K-12 CS education in the U.S. with Code.org to "support the much-needed pipeline for workers who are well versed in computer science."
The coalition's other efforts include three pilot programs collaborating with community colleges, unions and others "to demonstrate a replicable and scalable approach to attracting, training and creating employment opportunities." Federal agencies and the Smithsonian Institute also launched a new web site with free space-related resources for K-12 educators which also promotes career awareness.

And NASA also released an educator resources hub that includes a LEGO Build to Launch Series — plus $4 million in educational grants.

When they examined decades-old blood samples from 14 NASA astronauts who flew Space Shuttle missions between 1998 and 2001, researchers found that samples from all 14 astronauts showed mutations in their DNA. Futurism reports: While these mutations are likely low enough not to represent a serious threat to the astronauts' long term health, the research underlines the importance of regular health screenings for astronauts, especially as they embark on longer missions to the Moon and beyond in coming years. The specific mutations, as identified in a new study published in the journal Nature Communications Biology, were marked by a high proportion of blood cells that came from a single clone, a phenomenon called clonal hematopoiesis. Mutations like this can be caused by exposure to excess ultraviolet radiation, and other forms of radiation including chemotherapy. In this case, researchers are suspicious that the mutations may have been the result of space radiation.

"Astronauts work in an extreme environment where many factors can result in somatic mutations, most importantly space radiation, which means there is a risk that these mutations could develop into clonal hematopoiesis," said lead author David Goukassian, professor of medicine at the Icahn School of Medicine at Mount Sinai, in a statement. The blood samples for this latest study were collected from 12 male and two female astronauts ten days before their flight and on the day of their landing. The samples were then cryogenically stored at -112 degrees Fahrenheit for around two decades. The mutations observed in the blood samples resemble the kind of somatic mutations we see in older individuals -- which is interesting on its own, considering the median age of the astronauts was only 42.

"Although the clonal hematopoiesis we observed was of a relatively small size, the fact that we observed these mutations was surprising given the relatively young age and health of these astronauts," Goukassian said. "The presence of these mutations does not necessarily mean that the astronauts will develop cardiovascular disease or cancer," he added, "but there is the risk that, over time, this could happen through ongoing and prolonged exposure to the extreme environment of deep space." Therefore, Goukassian and his team are recommending that NASA should regularly screen astronauts for these kinds of mutations.

NASA said Thursday that it is working to fix the issues that delayed the launch of its Artemis I moon rocket last week, and that it hopes to make another attempt later this month. CNBC reports: The space agency on Sept. 3 called off the second attempt to launch the mission after detecting a hydrogen leak as the Space Launch System (SLS) rocket was being fueled. The Artemis I mission represents the debut of the SLS rocket and the uncrewed Orion capsule it is carrying, for what is expected to be a more than month-long journey around the moon. NASA made several unsuccessful attempts during the launch countdown on Saturday to fix the leak.

During a press conference on Thursday, NASA officials said work at the launchpad is ongoing, with the agency's team aiming to complete the replacement of seals on the fueling system by the end of the day. NASA then hopes to conduct a tanking demonstration on Sept. 17 to verify the replacement work was successful. Assuming the work and testing are completed by then, NASA has requested new launch dates from the U.S. Space Force's Eastern Range -- which reviews and approves all missions that liftoff from Cape Canaveral region. The agency has asked to make launch attempts on Sept. 23 and Sept. 27.

San Francisco lawmakers have unanimously approved a measure calling for the decriminalization of psychedelics like psilocybin and ayahuasca. DoubleBlind Mag reports: The Board of Supervisors approved the measure, sponsored by Supervisors Dean Preston (D) and Hillary Ronen (D), on Wednesday. While it doesn't immediately enact changes to criminal justice policy in San Francisco, it urges police to deprioritize psychedelics as "amongst the lowest priority" for enforcement and requests that "City resources not be used for any investigation, detention, arrest, or prosecution arising out of alleged violations of state and federal law regarding the use of Entheogenic Plants listed on the Federally Controlled Substances Schedule 1 list."

Decriminalize Nature San Francisco helped advance the resolution, which also implores city officials to "instruct" its state and federal lobbyists to push for psychedelics decriminalization in California and federally. The whereas section of the measure talks about emerging research that shows entheogenic substances have therapeutic potential to treat a wide range of mental health conditions such as post-traumatic stress disorder (PTSD) and substance misuse disorder. It further notes that the "state legislature has already started the conversation around the decriminalization of personal possession of small amounts of seven psychedelic substances," in the form of a bill from Sen. Scott Wiener (D) that passed the Senate and several Assembly committees before being significantly scaled back in a final panel and ultimately pulled by the sponsor.

Investment giant BlackRock is rebutting Republican politicians over its ESG investment policies, arguing that its critics are wrong on both the science and the cents. Axios: Private equity and other investment fund managers should pay close attention, because they could be next in the line of fire. Last month, 18 state attorneys general sent a letter to BlackRock, essentially arguing that its goal of moving toward a net-zero economy is in conflict with its fiduciary duty. Two states, Texas and West Virginia, also banned state entities from doing business with BlackRock, arguing (incorrectly) that the firm boycotts fossil fuel company investments.

Axios' Alayna Treene reports that the BlackRock blowback is part of a coordinated lobbying effort, writing: "The crusade against ESG investments is something many conservatives feel deeply about -- they view these companies as cultural enemies who are misusing investment funds to promote pro-climate policies... House Republicans plan to make an assault on ESG a central part of their legislative and investigative agenda if they take back the majority in November's midterms." BlackRock yesterday responded to the AG's letter, with a 10-page letter of its own. After again disputing the "boycott" accusations, the firm wrote: "We believe investors and companies that take a forward-looking position with respect to climate risk and its implications for the energy transition will generate better long-term financial outcomes." BlackRock is the world's largest asset manager, and its CEO Larry Fink has been very outspoken about ESG initiatives (with declining emphasis as the acronym progresses). In other words, it's a juicy target.

A trio of researchers at Purdue University has developed a new theory to explain why Pluto's moon Charon has a reddish north pole. Phys.Org reports: In their paper published in the journal Nature Communications, Stephanie Menten, Michael Sori and Ali Bramson, describe their study of the reddish surfaces of many icy objects in the Kuiper Belt, and how they might relate to Charon's reddish pole. Prior research has shown that many icy objects in the Kuiper belt are partly or entirely covered in reddish brown material. Prior research has also shown that the material is a kind of tholin -- compounds that are formed when organic chemicals are showered with radiation. But that has raised the question of where the organic compounds may have come from. In this new effort, the researchers theorize that it comes from methane released from cryovolcanoes. [...] They note that prior research suggests that gases escaping from Pluto are responsible for the reddish pole.

As the ocean froze, the methane would have become trapped in the ice, the researchers note. They note also that as the water became pressurized, cracks would have formed, leading to occasional eruptions. Such cryovolcanic eruptions, they suggest, could have released some amount of methane gas. And if some of that methane gas managed to drift all the way to the north pole, it would have frozen and fallen to the surface. And if it fell to the surface, it would have been subjected to millions of years of radiation from the sun, making it turn red. [...] They found that approximately 1000 billion metric tons of the gas could have made it to northern pole -- more than enough to create a red cap.

An anonymous reader quotes a report from New Scientist: A nuclear fusion reaction has lasted for 30 seconds at temperatures in excess of 100 million degrees celsius. While the duration and temperature alone aren't records, the simultaneous achievement of heat and stability brings us a step closer to a viable fusion reactor -- as long as the technique used can be scaled up. [...] Now Yong-Su Na at Seoul National University in South Korea and his colleagues have succeeded in running a reaction at the extremely high temperatures that will be required for a viable reactor, and keeping the hot, ionized state of matter that is created within the device stable for 30 seconds.

Controlling this so-called plasma is vital. If it touches the walls of the reactor, it rapidly cools, stifling the reaction and causing significant damage to the chamber that holds it. Researchers normally use various shapes of magnetic fields to contain the plasma -- some use an edge transport barrier (ETB), which sculpts plasma with a sharp cut-off in pressure near to the reactor wall, a state that stops heat and plasma escaping. Others use an internal transport barrier (ITB) that creates higher pressure nearer the center of the plasma. But both can create instability. Na's team used a modified ITB technique at the Korea Superconducting Tokamak Advanced Research (KSTAR) device, achieving a much lower plasma density. Their approach seems to boost temperatures at the core of the plasma and lower them at the edge, which will probably extend the lifespan of reactor components.

Dominic Power at Imperial College London says that to increase the energy produced by a reactor, you can make plasma really hot, make it really dense or increase confinement time. "This team is finding that the density confinement is actually a bit lower than traditional operating modes, which is not necessarily a bad thing, because it's compensated for by higher temperatures in the core," he says. "It's definitely exciting, but there's a big uncertainty about how well our understanding of the physics scales to larger devices. So something like ITER is going to be much bigger than KSTAR". Na says that low density was key, and that "fast" or more energetic ions at the core of the plasma -- so-called fast-ion-regulated enhancement (FIRE) -- are integral to stability. But the team doesn't yet fully understand the mechanisms involved. The reaction was stopped after 30 seconds only because of limitations with hardware, and longer periods should be possible in future. KSTAR has now shut down for upgrades, with carbon components on the wall of the reactor being replaced with tungsten, which Na says will improve the reproducibility of experiments. The research has been published in the journal Nature.

An anonymous reader quotes a report from CNET: In a new study, published Monday in the journal npj Flexible Electronics, an international team of researchers revealed it has engineered a system to remotely control the legs of cockroaches from afar. The system, which is basically a cockroach backpack wired into the creature's nervous system, has a power output about 50 times higher than previous devices and is built with an ultrathin and flexible solar cell that doesn't hinder the roach's movement. Pressing a button sends a shock to the backpack that tricks the roach into moving a certain direction.

Cockroach cyborgs are not a new idea. Back in 2012, researchers at North Carolina State University were experimenting with Madagascar hissing cockroaches and wireless backpacks, showing the critters could be remotely controlled to walk along a track. The way scientists do this is by attaching the backpack and connecting wires to a cockroach's "cerci," two appendages at the end of the abdomen that are basically sensory nerves. One on the left, one on the right. Previous studies have shown electrical impulses to either side can stimulate the roach into moving in that direction, giving researchers some control over locomotion. But to send and receive signals, you need to power the backpack. You might be able to use a battery but, eventually, a battery will run out of power and the cyborg cockroach will be free to disappear into the leaf litter.

The team at Riken crafted the system to be solar-powered and rechargeable. They attached a battery and stimulation module to the cockroach's thorax (the upper segment of its body). That was the first step. The second step was to make sure the solar cell module would adhere to the cockroach's abdomen, the segmented lower section of its body. [T]he Riken team tested a number of thin electronic films, subjecting their roaches to a bunch of experiments and watching how the roaches moved depending on the thickness of the film. This helped them decide on a module about 17 times thinner than a human hair. It adhered to the abdomen without greatly limiting the degree of freedom the roaches had and also stuck around for about a month, greatly outlasting previous systems. "The current system only has a wireless locomotion control system, so it's not enough to prepare an application such as urban rescue," said Kenjiro Fukuda, an expert in flexible electronics at Japan's Riken. "By integrating other required devices such as sensors and cameras, we can use our cyborg insects for such purposes."

Fukuda notes the design of the ultrathin solar cell could be applied to other insects, like beetles and cicadas.

Elizabeth Holmes -- the founder of blood testing startup Theranos and the poster child for misleading investors, media, and innocent people looking for medical care through a web of deceit -- wants a do-over. She is requesting a new trial, according to a document filed Tuesday in the Southern District Court of California. Gizmodo reports: The motion for a new trial, authored by Holmes' attorneys, hinges on "newly discovered evidence," specifically: the alleged testimony regrets of Adam Rosendorff. Rosendorff was a lab director at Theranos and later, testified as a key witness in the case against Holmes and her ex-boyfriend/partner in crime Ramesh "Sunny" Balwani. His original testimony lasted multiple days and emphasized the pressure that Theranos employees were under to demonstrate the faulty diagnostic technology worked, even when it didn't.

"I felt that it was a question on my integrity as a physician not to remain there and to continue to bolster results I essentially didn't have faith in," Rosendorff said while on the witness stand in 2021, according to CNBC. "I came to understand that management was not sincere in diverting resources to solve issues." Now, Holmes and her lawyers are claiming that Rosendorff left a voicemail and then showed up at Holmes' residence on August 8 in a desperate bid to communicate that he "felt he had done something wrong, apparently in connection with Ms. Holmes' trial." The motion, supposedly paraphrasing Rosendorff, says that the former Theranos employee stated, "the government made things seem worse than they were."

In the document, Holmes' legal team wrote, "Under any interpretation of his statements, the statements warrant a new trial under Rule 33. But, at a minimum, and to the extent the Court has any doubt about whether a new trial is required, the Court should order an evidentiary hearing and permit Ms. Holmes to subpoena Dr. Rosendorff to testify about his concerns." Holmes was found guilty in January on four of 11 charges defrauding the company's investors and patients. She was found not guilty on four counts.

In July, Balwani was found guilty of 12 counts of conspiracy and fraud against certain investors and patients.

The United States is likely to start recommending COVID-19 vaccines annually, health officials said on Tuesday, as new boosters designed to fight currently circulating variants of the coronavirus roll out. Reuters reports: By the end of this week, 90% of Americans will live within five miles (8 km) of sites carrying updated vaccines, U.S. health secretary Xavier Becerra said at a White House briefing. Officials said people could get the new boosters this fall or winter alongside their regular annual flu shots, and said it was likely this would become a yearly ritual.

U.S. Centers for Disease Control and Prevention (CDC) Director Rochelle Walensky said even with the seven-day average of COVID hospitalizations down 14% to 4,500 per day, annual shots could save thousands of lives. "Modeling projections show that an uptake of updated COVID-19 vaccine doses similar to an annual flu vaccine coverage early this fall could prevent as many as 100,000 hospitalizations and 9,000 deaths, and save billions of dollars in direct medical costs," she said. The redesigned boosters, green-lighted by U.S. health regulators last week, aim to tackle the BA.5 and BA.4 Omicron subvariants, which account for over 88% and 11% of circulating viruses, respectively, Walensky said. The so-called bivalent vaccines also still target the original version of the virus.

Top U.S. infectious disease expert Dr. Anthony Fauci said unless a dramatically different variant emerges, annual vaccines should offer enough protection for most people, but that some vulnerable groups might need more frequent vaccinations. "We likely are moving towards a path with a vaccination cadence similar to that of the annual influenza vaccine, with annual, updated COVID-19 shots matched to the currently circulating strains for most of the population," he said.

To better understand how microbes affect our health, researchers combined 119 species of bacteria naturally found in the human body. From a report: Our bodies are home to hundreds or thousands of species of microbes -- nobody is sure quite how many. That's just one of many mysteries about the so-called human microbiome. Our inner ecosystem fends off pathogens, helps digest food and may even influence behavior. But scientists have yet to figure out exactly which microbes do what or how. Many studies suggest that many species have to work together to do each of the microbiome's jobs.

To better understand how microbes affect our health, scientists have for the first time created a synthetic human microbiome, combining 119 species of bacteria naturally found in the human body. When the researchers gave the concoction to mice that did not have a microbiome of their own, the bacterial strains established themselves and remained stable -- even when the scientists introduced other microbes. The new synthetic microbiome can even withstand aggressive pathogens and cause mice to develop a healthy immune system, as a full microbiome does.

The findings were published on Tuesday in the journal Cell. A better understanding of the microbiome could potentially lead to a powerful way to treat a host of diseases. Already, doctors can use the microbiome to treat life-threatening gut infections of the bacteria Clostridium difficile. They just have to transplant stool from a healthy donor, and the infection usually goes away.