It turns out that JavaScript had a hand in delivering the stunning images that the James Webb Space Telescope has been beaming back to Earth. From a report: I mean that the actual telescope, arguably one of humanity's finest scientific achievements, is largely controlled by JavaScript files. Oh, and it's based on a software development kit from 2002. According to a manuscript (PDF) for the JWST's Integrated Science Instrument Module (or ISIM), the software for the ISIM is controlled by "the Script Processor Task (SP), which runs scripts written in JavaScript upon receiving a command to do so." The actual code in charge of turning those JavaScripts (NASA's phrasing, not mine) into actions can run 10 of them at once.

The manuscript and the paper (PDF) "JWST: Maximizing efficiency and minimizing ground systems," written by the Space Telescope Science Institute's Ilana Dashevsky and Vicki Balzano, describe this process in great detail, but I'll oversimplify a bit to save you the pages of reading. The JWST has a bunch of these pre-written scripts for doing specific tasks, and scientists on the ground can tell it to run those tasks. When they do, those JavaScripts will be interpreted by a program called the script processor, which will then reach out to the other applications and systems that it needs to based on what the script calls for. The JWST isn't running a web browser where JavaScript directly controls the Mid-Infrared Instrument -- it's more like when a manager is given a list of tasks (in this example, the JavaScripts) to do and delegates them out to their team.

Whether you opt for repellant, long sleeves or citronella coils, the dreaded drone of a mosquito always seems to find its way back to you. Now researchers say they have found the mechanism behind the insect's ability to home in on humans. From a report: Humans give off a fragrant cocktail of body odour, heat and carbon dioxide, which varies from person to person and mosquitoes use to locate their next meal. While most animals have a specific set of neurons that detect each type of odour, mosquitoes can pick up on smells via several different pathways, suggests the study, which is published in the science journal Cell. "We found that there's a real difference in the way mosquitoes encode the odours that they encounter compared to what we've learned from other animals," said Meg Younger, an assistant professor of biology at Boston University and one of the lead authors of the study. Researchers at the Rockefeller University, in New York, were baffled when mosquitoes were somehow still able to find people to bite after having an entire family of human odour-sensing proteins removed from their genome. The team then examined odour receptors in the antennae of mosquitoes, which bind to chemicals floating around in the environment and signal to the brain via neurons.

sciencehabit writes: From the start of the pandemic, the Chinese government -- like many foreign researchers -- has vigorously rejected the idea that SARS-CoV-2 somehow originated in the Wuhan Institute of Virology (WIV) and escaped. But over the past 2 years, it has also started to push back against what many regard as the only plausible alternative scenario: The pandemic started in China with a virus that naturally jumped from bats to an "intermediate" species and then to humans -- most likely at the Huanan Seafood Market in Wuhan. Beijing was open to the idea at first. But today it points to myriad ways SARS-CoV-2 could have arrived in Wuhan from abroad, borne by contaminated frozen food or infected foreigners -- perhaps at the Military World Games in Wuhan, in October 2019 -- or released accidentally by a U.S. military lab located more than 12,000 kilometers from Wuhan. Its goal is to avoid being blamed for the pandemic in any way, says Filippa Lentzos, a sociologist at King's College London who studies biological threats and health security. "China just doesn't want to look bad," she says. "They need to maintain an image of control and competence. And that is what goes through everything they do."

The idea of a pandemic origin outside China is preposterous to many scientists, regardless of their position on whether the virus started with a lab leak or a natural jump from animals. There's simply no way SARS-CoV-2 could have come from some foreign place to Wuhan and triggered an explosive outbreak there without first racing through humans at the site of its origin. "The idea that the pandemic didn't originate in China is inconsistent with so many other things," says Jesse Bloom, a virologist at the Fred Hutchinson Cancer Research Center who has argued for more intensive studies of the WIV lab accident scenario. "When you eliminate the absurd, it's Wuhan," says virologist Gregory Towers of University College London, who leans toward a natural origin. Yet Chinese researchers have published a flurry of papers supporting their government's "anywhere-but-here" position. Multiple studies report finding no signs of SARS-CoV-2 related viruses or antibodies in bats and other wild and captive animals in China. Others offer clues that the virus hitched a ride to China on imported food or its packaging. On the flip side, Chinese researchers are not pursuing -- or at least not publishing -- obvious efforts to trace the sources of the mammals sold at the Huanan market, which could yield clues to the virus' origins.

FallOutBoyTonto shares a report from Ars Technica: Never let it be said that Rocket Lab founder Peter Beck lacks a flamboyant streak. [...] On Tuesday evening Rocket Lab announced that it will self-fund the development of a small spacecraft, and its launch, that will send a tiny probe flying through the clouds of Venus for about 5 minutes, at an altitude of 48 to 60 km. Beck has joined up with several noted planetary scientists, including Massachusetts Institute of Technology professor Sara Seager, to design this mission. Electron will deliver the spacecraft into a 165 km orbit above Earth, where the rocket's high-energy Photon upper stage will perform a number of burns to raise the spacecraft's orbit and reach escape velocity. Assuming a May 2023 launch -- there is a backup opportunity in January 2025 -- the spacecraft would reach Venus in October 2023. Once there, Photon would deploy a small, approximately 20 kg probe into the Venusian atmosphere.

The spacecraft will be tiny, as deep-space probes go, containing a 1 kg scientific payload consisting of an autofluorescing nephelometer, which is an instrument to detect suspended particles in the clouds. The goal is to search for organic chemicals in the clouds and explore their habitability. The probe will spend about 5 minutes and 30 seconds falling through the upper atmosphere, and then ideally continue transmitting data as it descends further toward the surface. "The mission is the first opportunity to probe the Venus cloud particles directly in nearly four decades," states a paper, published this week, describing the mission architecture. "Even with the mass and data rate constraints and the limited time in the Venus atmosphere, breakthrough science is possible."

An anonymous reader quotes a report from Reuters: The U.S. Food and Drug Administration on Wednesday approved bluebird bio's gene therapy for patients with a rare disorder requiring regular blood transfusions, and the drugmaker priced it at a record $2.8 million. The approval sent the company's shares 8% higher and is for the treatment of beta-thalassemia, which causes an oxygen shortage in the body and often leads to liver and heart issues. The sickest patients, estimated to be up to 1,500 in the United States, need blood transfusions every two to five weeks. The therapy, to be branded as Zynteglo, is expected to face some resistance from insurers due to its steep price, analysts say.

Bluebird has pitched Zynteglo as a potential one-time treatment that could do away with the need for transfusions, resulting in savings for patients over the long term. The average cost of transfusions over the lifetime can be $6.4 million, Chief Operating Officer Tom Klima told Reuters before the approval. "We feel the prices we are considering still bring a significant value to patients." Bluebird has been in talks with insurers about a one-time payment option. "Potentially, up to 80% of that payment will be reimbursed if a patient does not achieve transfusion independence, they (insurers) are very excited about that," Klima said. The FDA warned of a potential risk of blood cancer with the treatment but noted studies had no such cases. "Bluebird expects to start the treatment process for patients in the fourth quarter," reports Reuters. "No revenue is, however, expected from the therapy in 2022 as the treatment cycle would take an average of 70 to 90 days from initial cell collection to final transfusion."

Researchers have discovered a second impact crater on the other side of the Atlantic that could have finished off what was left of the dinosaurs, after an asteroid known as Chicxulub slammed into what is now the Gulf of Mexico 66 million years ago. The BBC reports: Dubbed Nadir Crater, the new feature sits more than 300m below the seabed, some 400km off the coast of Guinea, west Africa. With a diameter of 8.5km, it's likely the asteroid that created it was a little under half a kilometre across. The hidden depression was identified by Dr Uisdean Nicholson from Heriot-Watt University, Edinburgh, UK. [...] "Our simulations suggest this crater was caused by the collision of a 400m-wide asteroid in 500-800m of water," explained Dr Veronica Bray from the University of Arizona, US. "This would have generated a tsunami over one kilometre high, as well as an earthquake of Magnitude 6.5 or so. "The energy released would have been around 1,000 times greater than that from the January 2022 eruption and tsunami in Tonga."

Dr Nicholson's team has to be cautious about tying the two impacts together. Nadir has been given a very similar date to Chicxulub based on an analysis of fossils of known age that were drilled from a nearby borehole. But to make a definitive statement, rocks in the crater itself would need to be pulled up and examined. This would also confirm Nadir is indeed an asteroid impact structure and not some other, unrelated feature caused by, for example, ancient volcanism. [...] Prof Sean Gulick, who co-led the recent project to drill into the Chicxulub Crater, said Nadir might have fallen to Earth on the same day. Or it might have struck the planet a million or two years either side of the Mexican cataclysm. Scientists will only know for sure when rocks from the west African crater are inspected in the lab. "A much smaller cousin, or sister, doesn't necessarily add to what we know about the dinosaurs' extinction, but it does add to our understanding of the astronomical event that was Chicxulub," the University of Texas at Austin researcher told BBC News.

Redwire says it would launch the first commercial space greenhouse in Spring next year to boost crop production research outside Earth and support exploration missions. From a report: The space infrastructure company's project will help deliver critical insights for NASA's Artemis missions and beyond, said Dave Reed, Redwire's manager for the greenhouse project. The Artemis program of the National Aeronautics and Space Administration (NASA) aims at sending astronauts to the moon and establishing a long-term lunar colony as a precursor to the eventual human exploration of Mars.

The navigation strategy of NASA's Curiosity rover means it has to stop frequently to check its position, but soon a software update will allow it to move almost continuously. From a report: A new software update will soon give NASA's Curiosity Mars rover a 50 per cent speed boost, allowing it to cover a greater distance and complete more science. But the update very nearly didn't happen because of a mysterious bug in the software that eluded engineers for years. Curiosity, which landed on Mars 10 years ago this month, has already greatly outlived its planned two-year lifespan.

schwit1 shares a report from ScienceAlert: The molecule is called fabimycin, and further down the line it could be used to fight off some of the most stubborn infections that humans can get. The new potential treatment targets gram-negative bacteria, a group of hard-to-kill pathogens that are commonly behind infections of the urinary tract, lungs, and even the bloodstream. Their resilience is due to a protective outer membrane that helps shield the wall from damaging substances like antibiotics. One study at an English hospital found more than a third of individuals with gram-negative bacteria blood infections had died within a year, demonstrating the challenges involved in managing these robust microbes.

Fabimycin overcomes these problems by passing through the outer cell layer, avoiding the pumps that remove foreign material to allow the molecule to accumulate where it can do the most harm. The substance also manages to avoid wiping out too many healthy bacteria, another issue with current treatments. The team started off with an antibiotic that was known to be effective against gram-positive bacteria and made several structural changes to give the molecule the power to infiltrate gram-negative strains' powerful defenses. In tests, fabimycin had an effect on more than 300 types of drug-resistant bacteria. What's more, in mice models it was shown to reduce levels of harmful bacteria in mice with pneumonia or urinary tract infections to where they were pre-infection. The research has been published in the journal ACS Central Science.

sciencehabit shares a report from Science Magazine: Last year, NASA achieved something science fiction writers have been dreaming about for decades: It created oxygen on Mars. A microwave-size device [called MOXIE, or the Mars Oxygen In-Situ Resource Utilization Experiment] attached to the agency's Perseverance rover converted carbon dioxide into 10 minutes of breathable oxygen. Now, physicists say they've come up with a way to use electron beams in a plasma reactor to create far more oxygen, potentially in a smaller package. The technique might someday not just help astronauts breathe on the Red Planet, but could also serve as a way to create fuel and fertilizer, says Michael Hecht, an experimental scientist at the Massachusetts Institute of Technology. But Hecht, who leads the oxygenmaking rover instrument, says the new approach still has a number of challenges to overcome before it can hitch a ride to our solar neighbor.
[...]
In the lab, he and his colleagues pumped air designed to match the pressure and composition of Mars into metal tubes. Unlike MOXIE, they didn't need to compress or heat the air. Yet, by firing an electron beam into the reaction chamber, they were able to convert about 30% of the air into oxygen. They estimate that the device could create about 14 grams of oxygen per hour: enough to support 28 minutes of breathing, the team reports today in the Journal of Applied Physics. Guerra's team still needs to solve some practical problems, Hecht notes. To work on Mars, the plasma device would need a portable power source and a place to store the oxygen it makes, all of which could make it just as -- if not more -- bulky than MOXIE, he says. If space agencies were willing to spend millions of dollars developing it -- as NASA did with MOXIE -- the plasma approach could mature, Hecht says. He especially likes how the electron beam could be tuned to split other atmospheric molecules, such as nitrogen, to create fertilizer. "There's nothing wrong with the plasma technique other than it's a lot less mature [than MOXIE]," he says.

An anonymous reader quotes a report from The Guardian: Researchers have successfully altered the blood type of three donor kidneys in a gamechanging discovery that could significantly improve the chances of patients waiting for a transplant finding a match. The development could increase the supply of kidneys available for transplant, particularly within minority ethnic groups who are less likely to find a match, scientists say. A kidney from someone with blood type A cannot be transplanted to someone with blood type B, nor the other way around. But changing the blood type to the universal O would allow more transplants to take place as this can be used for people with any blood type.

University of Cambridge researchers used a normothermic perfusion machine -- a device that connects with a human kidney to pass oxygenated blood through the organ to better preserve it for future use -- to flush blood infused with an enzyme through the deceased donor's kidney. The enzyme removed the blood type markers that line the blood vessels of the kidney, which led to the organ being converted to the most common O type. [...] Now the researchers need to see how the newly changed O-type kidney will react to a patient's usual blood type in their normal blood supply. The machine allows them to do this before testing in people, as they can take the kidneys that have been changed to the O type, and introduce different blood types to monitor how the kidney might react. The full paper on the work is set to be published in the British Journal of Surgery in the coming months.

An anonymous reader quotes a report from the New York Times: The Food and Drug Administration decided on Tuesday to allow hearing aids to be sold over the counter and without a prescription to adults, a long-sought wish of consumers frustrated by expensive exams and devices. The high cost of hearing aids, which are not covered by basic Medicare, has discouraged millions of Americans who have hearing loss from buying the devices. Health experts say that untreated hearing loss can contribute to cognitive decline and depression in older people. Under the new rule, people with mild to moderate hearing loss should be able to buy hearing aids online and in retail stores as soon as October, without being required to see a doctor for an exam to get a prescription.

The F.D.A. cited studies estimating that about 30 million Americans experience hearing loss, but only about one-fifth of them get help. The changes could upend the market, which is dominated by a relatively small number of manufacturers, and make it a broader field with less costly, and perhaps, more innovative designs. Current costs for hearing aids, which tend to include visits with an audiologist, range from about $1,400at Costco to roughly $4,700elsewhere. The F.D.A.'s final rule takes effect in 60 days. Industry representatives say device makers are largely ready to launch new products, though some may need time to update labeling and packaging or to comply with technical details in the rule. "This could fundamentally change technology," said Nicholas Reed, an audiologist at the Department of Epidemiology at Johns Hopkins Bloomberg School of Public Health. "We don't know what these companies might come up with. We may literally see new ways hearing aids work, how they look."

The Russian space agency has unveiled a physical model of what a planned Russian-built space station will look like, suggesting Moscow is serious about abandoning the International Space Station (ISS) and going it alone. The Guardian reports: Russia wants to reduce its dependency on western countries and forge ahead on its own, or cooperate with countries such as China and Iran, after sanctions were imposed by the west as a result of the invasion of Ukraine. Roscosmos presented a model of the space station, nicknamed "Ross" by Russian state media, on Monday at a military-industrial exhibition outside Moscow.

Roscosmos said its space station would be launched in two phases, without giving dates. For the first phase a four-module space station would start operating. That would be followed by two more modules and a service platform, it said. That would be enough, when completed, to accommodate up to four cosmonauts and scientific equipment. Roscosmos has said the station would afford Russian cosmonauts a much wider view by which to monitor Earth than their current segment. Although designs for some of the station exist, design work is still under way on other segments.

Russian state media have suggested the launch of the first stage is planned for 2025-26 and no later than 2030. Launch of the second and final stage is planned for 2030-35, they have reported. The space station, as currently conceived, would not have a permanent human presence but would be staffed twice a year for extended periods. Dmitry Rogozin, the previous head of Roscosmos and a hardliner known for his tough statements against the west, has suggested the new space station could fulfil a military purpose if necessary.

According to a new study published in the journal Nature Biotechnology, researchers implanted corneas made from pig collagen to restore sight in 20 people who were blind or visually impaired. "Fourteen of the patients were blind before they received the implant, but two years after the procedure, they had regained some or all of their vision," notes NBC News. "Three had perfect vision after the surgery." From the report: The patients, in Iran and India, all suffered from keratoconus, a condition in which the protective outer layer of the eye progressively thins and bulges outward. "We were surprised with the degree of vision improvement," said Neil Lagali, a professor of experimental ophthalmology at Linkoping University in Sweden who co-authored the study. Not all patients experienced the same degree of improvement, however. The 12 Iranian patients wound up with an average visual acuity of 20/58 with glasses; functional vision is defined as 20/40 or better with lenses. Nonetheless, Dr. Marian Macsai, a clinical professor of ophthalmology at the University of Chicago who wasn't involved in the study, said the technology could be a game changer for those with keratoconus, which affects roughly 50 to 200 out of every 100,000 people. It might also have applications for other forms of corneal disease.

To create the implant, Lagali and his team dissolved pig tissue to form a purified collagen solution. That was used to engineer a hydrogel that mimics the human cornea. Surgeons then made an incision in a patient's cornea for the hydrogel. "We insert our material into this pocket to thicken the cornea and to reshape it so that it can restore the cornea's function," Lagali said. Traditionally, human tissue is required for cornea transplants. But it's in short supply, because people must volunteer to donate it after they die. So, Lagali said, his team was looking for a low-cost, widely available substitute. "Collagen from pigskin is a byproduct from the food industry," he said. "This makes it broadly available and easier to procure." After two years, the patients' bodies hadn't rejected the implants, and they didn't have any inflammation or scarring.

But any experimental medical procedure comes with risk. In this case, Soiberman said, a foreign molecule like collagen could induce an immune reaction. The researchers prescribed patients an eight-week course of immunosuppressive eyedrops to lower the risk, which is less than the amount given to people who receive cornea transplants from human tissue. In those cases, patients take immunosuppressive medicine for more than a year, Lagali said. "There's always a risk for rejection of the human donor tissue because it contains foreign cells," he said. "Our implant does not contain any cells ... so there's a minimal risk of rejection." The procedure itself was also quicker than traditional cornea transplants. The researchers said each operation took about 30 minutes, whereas transplants of human tissue can take a couple of hours. [...] It's not yet clear whether the surgery would work for patients who have other forms of corneal disease aside from keratoconus.

An "extreme heat belt" reaching as far north as Chicago is taking shape, a corridor that cuts through the middle of the country and would affect more than 107 million people over the next 30 years, according to new data on the country's heat risks. From a report: The report, released Monday by the nonprofit research group First Street Foundation, found that within a column of America's heartland stretching from Texas and Louisiana north to the Great Lakes, residents could experience heat index temperatures above 125 degrees Fahrenheit by 2053 -- conditions that are more commonly found in California's Death Valley or in parts of the Middle East.

The projections are part of First Street Foundation's new, peer-reviewed extreme heat model, which shows that most of the country will have upticks in the number of days with heat index temperatures above 100 degrees over the next 30 years as a result of climate change. The heat index represents what a temperature feels like to the human body when humidity and air temperature are combined. It is commonly referred to as the "feels like" temperature. "Everybody is affected by increasing heat, whether it be absolute increases in dangerous days or it's just a local hot day," said First Street Foundation's chief research officer, Jeremy Porter, a professor and the director of quantitative methods in social sciences at the City University of New York.

Academics and pharmaceutical companies hope that technology based on human cells will help them phase mice and monkeys out of their labs. From a report: The umbrella term for the new field is microphysiological systems or MPS, which includes tumoroids, organoids and organs-on-a-chip. Organoids are grown from stem cells to create 3D tissue in a dish resembling miniature human organs; heart organoids beat like the real thing, for example. Organs-on-a-chip are plastic blocks lined with stem cells and a circuit that stimulates the mechanics of an organ. "We need to move away from animals in a systematic way," says Salim Abdool Karim, South Africa's leading infectious disease expert. "Thatâ...âinvolves regulators being given the data to show that non-animal biological systems will give us compatible, if not better, information." Nathalie Brandenburg co-founded Swiss start-up Sun Bioscience in 2016 to create standard versions of organoids, which makes it easier to trust that results are comparable, and convince scientists and regulators to use them. "When we started we had to tell people what organoids were," she says, referring to the early stage of her research journey.

In the past two years, and particularly as scientists emerged from lockdowns -- when many had time to read up on the technology -- demand from large pharmaceutical companies for Sun's products has soared, she says. Companies are becoming more interested in reducing their reliance on animals for ethical reasons, says Arron Tolley, chief executive of Aptamer Group, which creates artificial antibodies for use in diagnostics and drugs. "People are becoming more responsible now, from a corporate governance point of view, and looking to remove animal testing when necessary," he says. Using larger animals, such as monkeys, is particularly problematic, Tolley adds. "The bigger and cuter they get, the more people are aware of the impact." Rare diseases are especially fertile ground for models based on human tissues, says James Hickman, chief scientist at Hesperos, an organ-on-a-chip company based in Florida. "There are 7,000 rare diseases and only 400 are being actively researched because there are no animal models," Hickman says. "We're not just talking about replacing animals or reducing animals, these systems fill a void where animal models don't exist."

The United Arab Emirates is turning to vertical farming and hydroponics to produce food for local livestock as the desert nation tries to reduce its reliance on imports and shield itself from disruptions to global supply chains. From a report: Abu Dhabi-based startup World of Farming will begin building on-site operations at local farms later this year to provide fodder for meat and dairy producers that currently rely on imports for as much as 80% to 90% of their animal feed, said Faris Mesmar, chief executive officer of Hatch & Boost Ventures, a venture capital firm that launches and scales its own startups. "This region doesn't have a lot of arable land and the dependency on imports is becoming an issue for all local privately held and commercial farms," said Mesmar in an interview. Local livestock producers "find themselves with no consistent access with food to feed their animals."

Land or resource-scarce countries from the Middle East to Asia are increasingly seeking to insulate themselves against food shocks and global supply chain disruptions caused by the pandemic, politics and extreme weather. Russia's invasion of Ukraine has disrupted supplies from one of the world's top grain exporters, while heat waves have been wilting crops in Europe and the US. Techniques such as hydroponics, drip irrigation and enclosed cultivation allow desert nations such as the UAE to reduce costly imports of high-value fresh produce. Dubai-based airline Emirates opened what it says is the world's largest hydroponics farm in July to supply leafy greens for in-flight meals. Hydroponic, vertical farms typically grow plants indoors without soil, irrigating the crops with a water-based nutrient solution and often use artificial light.

Did Mars ever support life? One clue might be quantifying just how much ice (and other minerals) are lurking just below the planet's surface, a team of researchers argued this month. "If life exists on Mars, that is where it would be," they said in a news release this week. "There is no liquid water on the surface," but in a contrary scenario, "subsurface life would be protected from radiation."

Locating ice and minerals has another benefit too, they write in the journal Geophysical Research Letters: to "prepare for human exploration." And fortunately, there's a tool on the InSight lander (which touched down in 2018) that can help estimate the velocity of seismic waves inside the geological crust of Mars — velocities which change depending on which rock types are present, and which materials are filling pores within rocks (which could be ice, water, gas, or other mineral cements).

That's the good news. But after running computer models of applied rock physics thousands and thousands of times, the researchers believe it's unlikely that there's any layers saturated with water (or ice) in the top 300 meters (1,000 feet) of the crust of Mars. "Model results confirm that the upper 300 meters of Mars beneath InSight is most likely composed of sediments and fractured basalts."

The researchers reached a discouraging conclusion, reports Space.com "The chances of finding Martian life appear poor at in the vicinity of NASA's InSight lander." The subsurface around the landing zone — an equatorial site chosen especially for its flat terrain and good marsquake potential — appears loose and porous, with few ice grains in between gaps in the crust, researchers said.... The equatorial region where InSight is working, in theory, should be able to host subsurface water, as conditions are cold enough even there for water to freeze. But the new finding is challenging scientists' assumptions about possible ice or liquid water beneath the subsurface near InSight, whose job is to probe beneath the surface.

While images from the surface have suggested there might be sedimentary rock and lava flows beneath InSight, researchers' models have uncertainties about porosity and mineral content. InSight is helping to fill in some of those gaps, and its new data suggests that "uncemented material" largely fills in the region blow the lander. That suggests little water is present, although more data needs to be collected.

It's unclear how representative the InSight data is of the Martian subsurface in general, but more information may come courtesy of future missions. NASA is considering a Mars Life Explorer that would drill 6 feet (2 meters) below the surface to search for possible habitable conditions. Additionally, a proposed Mars Ice Mapper Mission could search for possible water reservoirs for human missions.
And of course, as the researchers point out in their announcement, "big ice sheets and frozen ground ice remain at the Martian poles."

"A major breakthrough in nuclear fusion has been confirmed a year after it was achieved at a laboratory in California," reports Newsweek: Researchers at Lawrence Livermore National Laboratory's National Ignition Facility (NIF) recorded the first case of ignition on August 8, 2021, the results of which have now been published in three peer-reviewed papers....

Ignition during a fusion reaction essentially means that the reaction itself produced enough energy to be self-sustaining, which would be necessary in the use of fusion to generate electricity. If we could harness this reaction to generate electricity, it would be one of the most efficient and least polluting sources of energy possible. No fossil fuels would be required as the only fuel would be hydrogen, and the only by-product would be helium, which we use in industry and are actually in short supply of....

This landmark result comes after years of research and thousands of man hours dedicated to improving and perfecting the process: over 1,000 authors are included in the Physical Review Letters paper.
This week the laboratory said that breakthrough now puts researchers "at the threshold of fusion gain and achieving scientific ignition," with the program's chief scientist calling it "a major scientific advance in fusion research, which establishes that fusion ignition in the lab is possible at the National Ignition Facility."

More news from this week's announcement by the Lawrence Livermore National Laboratory: Since the experiment last August, the team has been executing a series of experiments to attempt to repeat the performance and to understand the experimental sensitivities in this new regime. "Many variables can impact each experiment," Kritcher said. "The 192 laser beams do not perform exactly the same from shot to shot, the quality of targets varies and the ice layer grows at differing roughness on each target...."

While the repeat attempts have not reached the same level of fusion yield as the August 2021 experiment, all of them demonstrated capsule gain greater than unity with yields in the 430-700 kJ range, significantly higher than the previous highest yield of 170 kJ from February 2021. The data gained from these and other experiments are providing crucial clues as to what went right and what changes are needed in order to repeat that experiment and exceed its performance in the future. The team also is utilizing the experimental data to further understanding of the fundamental processes of fusion ignition and burn and to enhance simulation tools in support of stockpile stewardship.

Looking ahead, the team is working to leverage the accumulated experimental data and simulations to move toward a more robust regime — further beyond the ignition cliff — where general trends found in this new experimental regime can be better separated from variability in targets and laser performance. Efforts to increase fusion performance and robustness are underway via improvements to the laser, improvements to the targets and modifications to the design that further improve energy delivery to the hotspot while maintaining or even increasing the hot-spot pressure. This includes improving the compression of the fusion fuel, increasing the amount of fuel and other avenues.

"It is extremely exciting to have an 'existence proof' of ignition in the lab," said Omar Hurricane, chief scientist for the lab's inertial confinement fusion program. "We're operating in a regime that no researchers have accessed since the end of nuclear testing, and it's an incredible opportunity to expand our knowledge as we continue to make progress."
Thanks to long-time Slashdot reader hesdeadjim99 for sharing the news.

Slashdot reader sciencehabit shared this thought-provoking anecdote from Science magazine: NASA's Lunar Crater Observation and Sensing Satellite mission was brutish and short. It began on 9 October 2009, when the hull of a spent Centaur rocket stage smashed into Cabeus crater, near the south pole of the Moon, with the force of about 2 tons of TNT. And it ended minutes later, when a trailing spacecraft flew through and analyzed the lofted plume of debris before it, too, crashed. About 6% of the plume was water, presumably from ice trapped in the shadowed depths of the crater, where the temperature never rises above -173ÂC. The Moon, it turned out, wasn't as bone dry as the Apollo astronauts believed. "That was our first ground truth that there is water ice," says Jennifer Heldmann, a planetary scientist at NASA's Ames Research Center who worked on the mission.

Today, Heldmann wants to send another rocket to probe lunar ice — but not on a one-way trip. She has her eye on Starship, a behemoth under development by private rocket company SpaceX that would be the largest flying object the world has ever seen. With Starship, Heldmann could send 100 tons to the Moon, more than twice the lunar payload of the Saturn V, the workhorse of the Apollo missions. She dreams of delivering robotic excavators and drills and retrieving ice in freezers onboard Starship, which could return to Earth with tens of tons of cargo. By analyzing characteristics such as the ice's isotopic composition and its depth, she could learn about its origin: how much of it came from a bombardment of comets and asteroids billions of years ago versus slow, steady implantation by the solar wind. She could also find out where the ice is abundant and pure enough to support human outposts. "It's high-priority science, and it's also critical for exploration," Heldmann says.

When SpaceX CEO Elon Musk talks up Starship, it's mostly about human exploration: Set up bases on Mars and make humans a multiplanetary species! Save civilization from extinction! But Heldmann and many others believe the heavy lifter could also radically change the way space scientists work. They could fly bigger and heavier instruments more often — and much more cheaply, if SpaceX's projections of cargo launch costs as low as $10 per kilogram are to be believed. On Mars, they could deploy rovers not as one-offs, but in herds. Space telescopes could grow, and fleets of satellites in low-Earth orbit could become commonplace. Astronomy, planetary science, and Earth observation could all boldly go, better than they ever have before.

Of course, Starship isn't real yet. All eyes will be on a first orbital launch test, expected sometime in the coming months.
Starship would've made it easier to deploy the massive James Webb Space Telescope, the article points out, while in the future Starship's extra fuel capacity could make it easier to explore Mercury, earth's outermost planets, and even interstellar space. In fact, Heldmann and colleagues have now suggested that NASA create a dedicated funding line for missions relying on Starship. Heldmann argues that "We on the science side need to be ready to take advantage of those capabilities when they come online."

The article notes that at an event in February, Elon Musk "explained how a single Starship, launching three times per week, would loft more than 15,000 tons to orbit in a year — about as much as all the cargo that has been lifted in the entire history of spaceflight."