During a press conference Monday morning, NASA provided an update on the status of the Webb Space Telescope and released images from the telescope that put Webb's progress on dazzling display. Gizmodo reports: "I'm delighted to report that the telescope alignment has been completed with performance even better than we had anticipated," said Michael McElwain, a Webb observatory project scientist at NASA's Goddard Space Flight Center, in a NASA press conference. "This is an extraordinary milestone for humanity." Webb sits at an observational point called L2 nearly 1 million miles from Earth, where it will look further back in time than the Hubble Space Telescope. (Hubble will continue to operate alongside Webb once the latter is operational). [...] The preparation and testing of the telescope's science instruments (a process called commissioning) will take about two months to complete. Only once the commissioning is complete can Webb begin taking the scientific images that will define its tenure in space.

But some images are already being collected, to make sure the telescope is functioning properly. Webb's coldest instrument -- the Mid-Infrared Instrument (MIRI) -- recently took a test image of the Large Magellanic Cloud, a satellite galaxy of the Milky Way that was previously imaged by the now-retired Spitzer Space Telescope's Infrared Array Camera. Webb's image of the same region makes Spitzer's look like a finger painting, showing interstellar gas clearly distributed across the star field. The stars -- blots, in Spitzer's view -- are seven-pointed beacons of light in the MIRI test.

Webb's next steps will focus on taking images of its science targets, known as early release observations. These will not only be the first images of Webb science targets, but they will be the first images processed into full color. (Webb sees the cosmos in the infrared and near-infrared wavelengths, but the images will be translated into visible light.) Klaus Pontoppidan, a Webb project scientist at the Space Telescope Science Institute, said in the briefing that the chief differences between the most recent images and the ones to come are that the former were taken to test the telescope's ability to see clearly, whereas the latter will test the telescope's ability to image science targets. Pontoppidan wouldn't elaborate on what Webb team will capture in the early release observations -- the targets are a "surprise," he said.

An anonymous reader quotes a report from The Guardian: Scientists are developing magnetically guided microscopic projectiles that can be injected into patients' blood to attack breast, prostate and other tumors. The project -- led by researchers at Sheffield University -- builds on progress in two key medical fields. The first involves viruses that specifically attack tumors. The second focuses on soil bacteria that manufacture magnets which they use to align themselves in the Earth's magnetic field.

The anti-cancer viruses that are being exploited by the Sheffield group -- who have been funded by Cancer Research UK -- are known as oncolytic viruses. They occur naturally but can also be modified to improve their efficacy and to limit the chances of them infecting healthy cells. [...] "The problem is that oncolytic viruses attract the attention of the body's immune defenses and only skin-deep tumors can be tackled this way before the viruses are blocked fairly quickly by our cell defenses," said Dr Faith Howard, another project leader. A solution, the scientists say, is to coat the viruses in magnetic particles. Injected into the blood, these microscopic projectiles could then be directed quickly to a tumor -- by using magnets placed over a patient's body -- before their progress can be blocked by immune defenses.

An oncolytic virus had a diameter of about 180 nanometers while the magnets needed to be about 50 nanometers in size, added Howard. (A nanometre is a billionth of a meter.) "These tiny magnets could be made in the laboratory but we have found bacteria do a better job of manufacturing them than we could," she added. Some species of soil bacteria synthesize iron oxide nanoparticles that are called magnetosomes. These are used as compasses that allow the microbes to navigate in Earth's magnetic field and help them find optimum conditions for their growth and survival. "These microscopic magnets they make are perfectly shaped and ideally suited to the microscopic packages we need to target deep cancers," Howard said.

Europe's first commercial facility for psychedelic drug trials is to open in London, with the goal of making the UK a global leader in psychedelics research and innovation. From a report: The British startup Clerkenwell Health aims to begin trials in its central London facility in August, initially focusing on the use of psilocybin to help people deal with the anxiety associated with a diagnosis of terminal illness, and to support them through their end-of-life care. The news comes as scientists and policymakers gather in London this Wednesday for the Agenda for Psych Symposium, a daylong programme to discuss the latest research and the future of the psychedelics industry in Europe.

NASA has released some surprisingly colorful visualization of black holes. Digital Trends explains their origins: We're coming to the end of Black Hole Week, NASA's celebration of the beastly cosmic monsters which suck in light, matter, and everything else that comes too close to them....

As part of the festivities, the media department at NASA's Goddard Space Flight Center has shared a selection of some of the best visualizations of black holes, so you can get an idea of what these mind-bending phenomena are like. The images, which are also available as desktop and mobile wallpapers should you wish to decorate your devices with black hole imagery, show simulations and visualizations created to try and picture what the weird effects of the extreme gravitational forces around a black hole would be.
NASA describes this as "translating the inherently digital data (in the form of ones and zeroes) captured by telescopes in space into images, [creating] visual representations of what would otherwise be invisible to us."

"But what about experiencing these data with other senses, like hearing?

"Sonification is the process that translates data into sound. Our new project brings parts of our Milky Way galaxy, and of the greater Universe beyond it, to listeners for the first time."


And elsewhere, CNN reports astronomers used the unique X-ray echoes released by rare "binary" black hole-star systems to identify six more such systems. (Only two were known previously.) And then converted their data into sound waves. The team tracked changes in the X-ray echoes, determined time lags during transition stages and traced commonalities in the evolution of each black hole outburst. The result sounds like something from a 1950s sci-fi film.

To attack tumors, the Guardian reports, "scientists are developing magnetically guided microscopic projectiles that can be injected into patients' blood." The project — led by researchers at Sheffield University — builds on progress in two key medical fields. The first involves viruses that specifically attack tumours.... After infection with an oncolytic virus, a cancer cell will burst open and die. The US Food and Drug Administration has already approved the use of T-Vec, a modified herpes simplex virus that infects and kills tumour cells and is now being used to treat people with certain types of melanoma, a skin cancer.
Unfortunately, the viruses soon get attacked by the body's immune system. So the scientists want to coat the viruses with magnetic particles, so that magnets (outside a patient's body) can quickly guide those viruses where they're needed.

And to accomplish this they're using a soil bacteria which is known to make magnets to align with Earth's own magnetic field. "The essence of this approach is straightforward," one of the project's leaders explains to the Guardian. "We are using bugs as drugs.... we have found bacteria do a better job of manufacturing them than we could." Having developed the technology, the Sheffield team is now working to ensure they can manufacture sufficient supplies so that clinical trials on humans can begin soon. To date, trials have focused on animal models. "These early tests have been very encouraging and we now need to take the next steps to bring this technique to a state where it can be administered to humans — hopefully in a few years' time."

Thanks to Slashdot reader Falconhell for sharing the article!

Iamthecheese writes: The Mars XR Operations Support System is a virtual environment making use of [Epic Games'] Unreal Engine 5. [NASA is seeking to gather contributions to "replicate the harsh conditions of Mars in order to better train the next generation of astronauts," reports VRScout.] There is a $70,000 prize to be split between 20 contestants. It will be awarded to those with the best assets and scenarios.

There are five (5) different categories to participate in, with particular scenarios to explore in each category:

-Set Up Camp
-Scientific Research
-Maintenance
-Exploration
-Blow Our Minds

I'm guessing little green men will feature heavily in submissions. In any case, it's not just a chance to earn money, but prove oneself to potential employers. Prize and contest information here.

An anonymous reader quotes a report from Scientific American: During spring in the Pacific Northwest, meltwater from thawing snow rushes down rivers and the wind often blows hard. These forces spin the region's many power turbines and generate a bounty of electricity at a time of mild temperatures and relatively low energy demand. But much of this seasonal surplus electricity -- which could power air conditioners come summer -- is lost because batteries cannot store it long enough. Researchers at Pacific Northwest National Laboratory (PNNL), a Department of Energy national laboratory in Richland, Wash., are developing a battery that might solve this problem. In a recent paper published in Cell Reports Physical Science, they demonstrated how freezing and thawing a molten salt solution creates a rechargeable battery that can store energy cheaply and efficiently for weeks or months at a time.

Most conventional batteries store energy as chemical reactions waiting to happen. When the battery is connected to an external circuit, electrons travel from one side of the battery to the other through that circuit, generating electricity. To compensate for the change, charged particles called ions move through the fluid, paste or solid material that separates the two sides of the battery. But even when the battery is not in use, the ions gradually diffuse across this material, which is called the electrolyte. As that happens over weeks or months, the battery loses energy. Some rechargeable batteries can lose almost a third of their stored charge in a single month.

"In our battery, we really tried to stop this condition of self-discharge," says PNNL researcher Guosheng Li, who led the project. The electrolyte is made of a salt solution that is solid at ambient temperatures but becomes liquid when heated to 180 degrees Celsius -- about the temperature at which cookies are baked. When the electrolyte is solid, the ions are locked in place, preventing self-discharge. Only when the electrolyte liquifies can the ions flow through the battery, allowing it to charge or discharge. Creating a battery that can withstand repeated cycles of heating and cooling is no small feat. Temperature fluctuations cause the battery to expand and contract, and the researchers had to identify resilient materials that could tolerate these changes. [...] The result is a rechargeable battery made from relatively inexpensive materials that can store energy for extended periods. "Right now the experimental technology is aimed at utility-scale and industrial uses," notes the report. "The PNNL team plans to continue developing the technology, but ultimately it will be up to industry to develop a commercial product."

Chinese researchers show off a swarm of drones collectively navigating a dense forest they've never encountered. TechCrunch reports: Researchers at Zheijang University in Hangzhou have succeeded, however, with a 10-strong drone swarm smart enough to fly autonomously through a dense, unfamiliar forest, but small and light enough that each one can easily fit in the palm of your hand. It's a big step toward using swarms like this for things like aerial surveying and disaster response.

Based on an off-the-shelf ultra-compact drone design, the team built a trajectory planner for the group that relies entirely on data from the onboard sensors of the swarm, which they process locally and share with each other. The drones can balance or be directed to pursue various goals, such as maintaining a certain distance from obstacles or each other, or minimizing the total flight time between two points, and so on.

The drones can also, worryingly, be given a task like "follow this human." We've all seen enough movies to know this is how it starts ... but of course it could be useful in rescue or combat circumstances as well. A part of their navigation involves mapping the world around them, of course, and the paper includes some very cool-looking 3D representations of the environments the swarm was sent through. Zhou et alThe study is published in the most recent issue of the journal Science Robotics, which you can read here, along with several videos showing off the drones in action.

According to the World Health Organization, the COVID-19 pandemic has caused the deaths of nearly 15 million people around the world. "That is 13% more deaths than normally expected over two years," notes the BBC. From the report: The WHO believes many countries undercounted the numbers who died from Covid -- only 5.4 million were reported. In India, there were 4.7 million Covid deaths, it says - 10 times the official figures -- and almost a third of Covid deaths globally. The Indian government has questioned the estimate, saying it has "concerns" about the methodology, but other studies have come to similar conclusions about the scale of deaths in the country.

The measure used by the WHO is called excess deaths - how many more people died than would normally be expected based on mortality in the same area before the pandemic hit. These calculations also take into account deaths which were not directly because of Covid but instead caused by its knock-on effects, like people being unable to access hospitals for the care they needed. It also accounts for poor record-keeping in some regions, and sparse testing at the start of the crisis. But the WHO said the majority of the extra 9.5 million deaths seen above the 5.4 million Covid deaths reported were thought to be direct deaths caused by the virus, rather than indirect deaths. Yesterday, the United States officially surpassed 1 million COVID-19 deaths -- "a once unthinkable scale of loss even for the country with the world's highest recorded toll from the virus," says NBC News.

SpaceX brought four astronauts home with a midnight splashdown in the Gulf of Mexico on Friday, capping the busiest month yet for Elon Musk's taxi service. From a report: The three U.S. astronauts and one German in the capsule were bobbing off the Florida coast, near Tampa, less than 24 hours after leaving the International Space Station. NASA expected to have them back in Houston later in the morning. NASA's Raja Chari, Tom Marshburn and Kayla Barron, and the European Space Agency's Matthias Maurer, embraced the seven astronauts remaining at the station, before parting ways. "It's the end of a six-month mission, but I think the space dream lives on," Maurer said. SpaceX brought up their U.S. and Italian replacements last week, after completing a charter trip to the station for a trio of businessmen.

An anonymous reader quotes a report from MIT Technology Review: The pig heart transplanted into an American patient earlier this year in a landmark operation carried a porcine virus that may have derailed the experiment and contributed to his death two months later, say transplant specialists. [...] In a statement released by the university in March, a spokesperson said there was "no obvious cause identified at the time of his death" and that a full report was pending. Now MIT Technology Review has learned that Bennett's heart was affected by porcine cytomegalovirus, a preventable infection that is linked to devastating effects on transplants.

The presence of the pig virus and the desperate efforts to defeat it were described by Griffith during a webinar streamed online by the American Society of Transplantation on April 20. The issue is now a subject of wide discussion among specialists, who think the infection was a potential contributor to Bennett's death and a possible reason why the heart did not last longer. The heart swap in Maryland was a major test of xenotransplantation, the process of moving tissues between species. But because the special pigs raised to provide organs are supposed to be virus-free, it now appears that the experiment was compromised by an unforced error. The biotechnology company that raised and engineered the pigs, Revivicor, declined to comment and has made no public statement about the virus. "It was surprising. That pig is supposed to be clean of all pig pathogens, and this is a significant one," says Mike Curtis, CEO of eGenesis, a competing company that is also breeding pigs for transplant organs. "Without the virus, would Mr. Bennett have lived? We don't know, but the infection didn't help. It likely contributed to the failure."

An influential thinktank that has led the backlash against the government's net zero policy has received funding from groups with oil and gas interests, according to tax documents seen by the Guardian and OpenDemocracy. From a report: Though the Global Warming Policy Foundation (GWPF) has always said it is independent of the fossil fuel industry, the revelations about its funding will raise questions over its campaigning. The thinktank has always refused to disclose its donors, but tax documents filed with US authorities reveal that one of its donors has $30m of shares in 22 companies working in coal, oil and gas. Over four years the GWPF's US arm, the American Friends of the GWPF, received more than $1m from US donors. The vast majority of this, $864,884, was channelled to the UK group, with some being held back for expenses.

Of the $1.8m the GWPF has received in charitable donations since 2017, about 45% has come from the US. It received $210,525 in 2018 and 2020 from the Sarah Scaife Foundation -- set up by the billionaire libertarian heir to an oil and banking dynasty. The US-based foundation has $30m-worth of shares in 22 energy companies including $9m in Exxon and $5.7m in Chevron, according to its financial filings. Between 2016 and 2020, the American Friends of the GWPF received $620,259 from the Donors Trust, which is funded by the Koch brothers, who inherited their father's oil empire and have spent hundreds of millions of dollars funding the climate denial movement. "It is disturbing that the Global Warming Policy Foundation is acting as a channel through which American ideological groups are trying to interfere in British democracy," said Bob Ward, policy and communications director at the LSE Grantham Research Institute on Climate Change and the Environment.

NBC News is reporting that the United States has officially surpassed 1 million COVID-19 deaths -- "a once unthinkable scale of loss even for the country with the world's highest recorded toll from the virus." From the report: The number -- equivalent to the population of San Jose, California, the 10th largest city in the U.S. -- was reached at stunning speed: 27 months after the country confirmed its first case of the virus. While deaths from Covid have slowed in recent weeks, about 360 people have still been dying every day. The casualty count is far higher than what most people could have imagined in the early days of the pandemic [...].

Now, more than two years and 999,999 fatalities later, the U.S. death toll is the world's highest total by a significant margin, figures show. In a distant second is Brazil, which has recorded just over 660,000 confirmed Covid deaths.

Researchers at the Terasaki Institute have now shown that silk scaffolds loaded with stem cells can help tendons regenerate more effectively. New Atlas reports: For the new study, the Terasaki researchers developed their own scaffold that could support the tendon while it healed. This scaffold was made of silk fibroin paired with a hydrogel known as GelMA -- the former gave the scaffold strength and stretchability, while the latter is biocompatible and encourages cells to attach and grow. After experimenting to get the right ratios of ingredients, the team fabricated nanofiber sheets of their silk fibroin and GelMA (SG) material. Then the sheets are seeded with mesenchymal stem cells (MSCs), which can not only differentiate into several cell types, but also aid regeneration by producing signaling molecules that summon immune cells to the area and encourage new blood vessels to form.

The team tested these stem-cell-loaded SG sheets in rats with injuries to their Achilles tendons. Compared to other scaffolds loaded with stem cells, those made of SG healed the tendons the fastest, while also forming densely packed tendon fibers, reducing injury sites, and remodeling the muscle components. "The synergistic effects of GelMA's capacity for supporting regenerative tissue formation and the structural advantages of silk fibroin make our composite material well suited for tendon repair," said HanJun Kim, lead researcher on the study. The team hopes that with further work, the stem-cell-loaded scaffolds could eventually lead to new therapies for tendon injuries. The research has been published in the journal Small.

technology_dude shares a report from Ars Technica: As part of its Artemis program to return humans to the Moon this decade, NASA has a minimum requirement that its "human landing system" must be able to deliver 865 kg to the lunar surface. This is based on the mass of two crew members and their equipment needed for a short stay. However, in selecting SpaceX's Starship vehicle to serve as its human lander, NASA has chosen a system with a lot more capability. Starship will, in fact, be able to deliver 100 metric tons to the surface of the Moon -- more than 100 times NASA's baseline goal.

"Starship can land 100 tons on the lunar surface," said Aarti Matthews, Starship Human Landing System program manager for SpaceX. "And it's really hard to think about what that means in a tangible way. One hundred tons is four fire trucks. It's 100 Moon rovers. My favorite way to explain this to my kids is that it's the weight of more than 11 elephants." Matthews made her comments last week at the ASCENDxTexas space conference in Houston. She was responding to a question from an audience member, Jeff Michel, an engineer at Johnson Space Center. [...] "NASA specified a high-level need, but we, industry, are taking away one of your biggest constraints that you have in designing your payloads and your systems," she said. "It's significantly higher mass. It's essentially infinite volume for the purposes of this conversation. And the cost is an order of magnitude lower. I think that our NASA community, our payload community, should really think about this new capability that's coming online."

"We all need to be thinking bigger and better and really inspirationally about what we can do," Matthews said. "Anyone who has worked on hardware design for space application knows you're fighting for kilograms, and sometimes you're fighting for grams, and that takes up so much time and energy. It really limits ultimately what your system can do. That's gone away entirely." [...] "If you, as an engineer, are developing an in-situ resource utilization system, what does your system look like when you have no mass constraint?" she asked. "What about when you have no volume constraint? That would be the exciting thing that I would like to hear from NASA engineers, what they can do with this capability." "The engineer says NASA is not thinking big enough," adds Slashdot reader technology_dude. "I think it's pretty obvious what the payload should be, a nuclear powered boring machine. With flamethrower weapons just in case! Leave a comment for my resume. Maybe I'll call."

An anonymous reader quotes a report from Gizmodo: Helga and Zohar are headed for a trip around the Moon on an important mission, measuring radiation risks for female astronauts for the first time. The inanimate pair are manikins modeled after the body of an adult woman. For the Artemis 1 mission, in which an uncrewed Orion capsule will travel to the Moon and back, one of the manikins will be outfitted with a newly developed radiation protection vest. Helga and Zohar, as they're called, won't be alone, as they'll be joined by a third manikin that will collect data about flight accelerations and vibrations. Artemis 1 is scheduled to blast off later this year. The Artemis program aims to return humans to the Moon for the first time in over 50 years, but this time the space agency has vowed to land the first woman on the dusty lunar surface. [...]

The Helga and Zohar manikins are part of the MARE experiment, designed by the German Aerospace Center (DLR). The experiment will use two identical representations of the female body to investigate radiation exposure throughout the flight of the Artemis 1 mission, which may last up to six weeks. Artemis 1 will set the stage for Artemis 2, in which an Orion capsule carrying real humans will fly to the Moon and back (without landing), possibly as early as 2024. [...] Here's how it will work. The manikins are made from materials that mimic the bones, soft tissues, and organs of an adult woman, all of which will be tracked by more than 10,000 passive sensors and 34 active radiation detectors, according to DLR. One of the manikins, Helga, will fly to the Moon unprotected while the other one, Zohar, will wear a radiation protection vest called the AstroRad (which was developed by American aerospace company Lockheed Martin and Israeli startup StemRad).

As they travel aboard the Orion spacecraft to the Moon, Helga and Zohar will be affected by the harsh environment of space. The manikins, having traveled beyond the protective shielding of Earth's magnetosphere, will be exposed to various types of space radiation, like charged particles produced by the Sun or energy particles trapped within Earth's atmosphere. Space radiation is known to alter molecules of DNA, which is obviously not good for human health. Upon their arrival back at Earth, data collected from the two manikins will help researchers to better understand the level of protection provided by the newly developed AstroRad vest.

Efforts to tease apart the vast swarm of proteins in venom -- a field called venomics -- have burgeoned in recent years, leading to important drug discoveries. From a report: In a small room in a building at the Arizona-Sonora Desert Museum, the invertebrate keeper, Emma Califf, lifts up a rock in a plastic box. "This is one of our desert hairies," she said, exposing a three-inch-long scorpion, its tail arced over its back. "The largest scorpion in North America." This captive hairy, along with a swarm of inch-long bark scorpions in another box, and two dozen rattlesnakes of varying species and sub- species across the hall, are kept here for the coin of the realm: their venom. Efforts to tease apart the vast swarm of proteins in venom -- a field called venomics -- have burgeoned in recent years, and the growing catalog of compounds has led to a number of drug discoveries. As the components of these natural toxins continue to be assayed by evolving technologies, the number of promising molecules is also growing.

"A century ago we thought venom had three or four components, and now we know just one type of venom can have thousands," said Leslie V. Boyer, a professor emeritus of pathology at the University of Arizona. "Things are accelerating because a small number of very good laboratories have been pumping out information that everyone else can now use to make discoveries." She added, "There's a pharmacopoeia out there waiting to be explored." It is a striking case of modern-day scientific alchemy: The most highly evolved of natural poisons on the planet are creating a number of effective medicines with the potential for many more.

One of the most promising venom-derived drugs to date comes from the deadly Fraser Island funnel web spider of Australia, which halts cell death after a heart attack. Blood flow to the heart is reduced after a heart attack, which makes the cell environment more acidic and leads to cell death. The drug, a protein called Hi1A, is scheduled for clinical trials next year. In the lab, it was tested on the cells of beating human hearts. It was found to block their ability to sense acid, "so the death message is blocked, cell death is reduced, and we see improved heart cell survival," said Nathan Palpant, a researcher at the University of Queensland in Australia who helped make the discovery.

People who have been hospitalised with Covid may be left with difficulties in thinking comparable in magnitude to ageing 20 years, research suggests. From a report: As the pandemic swept the world it became apparent that coronavirus could not only cause immediate health problems but also leave some people with often debilitating symptoms -- a condition known as long Covid. According to one UK study, about a third of patients who experienced symptoms after being hospitalised felt fully recovered a year later, with little improvement for most patients in areas including physical function and cognitive impairment. Now experts have revealed that some patients were left with, on average, a lingering cognitive decline.

David Menon, a professor at Cambridge University and senior author of the study, said the degree of impairment was linked to the severity of illness. "[Covid] does cause problems with a variety of organs in the body, including the brain and our cognitive function and our psychological health," he said. "If you can have a vaccine, and all your doses, you will have less severe illness. So all of these problems are going to be less." Writing in the eClinicalMedicine journal, Menon and colleagues report how they examined the results of cognitive tests performed by 46 patients, on average six months after they were admitted to Addenbrooke's hospital in Cambridge between March and July 2020. Of this group, 16 received mechanical ventilation.

schwit1 shares a report from Space.com: We'll have to wait at least another month to see the results of the U.S Federal Aviation Administration's (FAA) environmental review of SpaceX's Starship program. The FAA has been working for months on that review -- officially known as a programmatic environmental assessment (PEA) -- which is assessing the environmental impacts of Starbase, the South Texas site where SpaceX has been building and testing its huge Starship vehicle. The agency published a draft PEA in September and estimated that the final version would be wrapped up by the end of the year. But the FAA has repeatedly delayed the final PEA, generally by a month at a time, citing the need to analyze the public comments submitted in response to the draft report and discuss next steps with other government agencies. "The FAA plans to release the Final PEA on May 31, 2022. The FAA is finalizing the review of the Final PEA, including responding to comments and ensuring consistency with SpaceX's licensing application," FAA officials wrote in an update. "The FAA is also completing consultation and confirming mitigations for the proposed SpaceX operations. All consultations must be complete before the FAA can issue the Final PEA."

Scientists working on NASA's James Webb Telescope have reached an important milestone, completely aligning the space observatory's massive mirrors. New Atlas reports: The achievement means the team can now move ahead with configuring the onboard instruments and prepare them to begin capturing sharp and in-focus images of the cosmos. Back in January, the James Webb Space Telescope (JWST) finished deploying its set of 18 mirrors, which it will use to direct light from cosmic objects onto its instruments to capture images. But to do so, the mirrors had to be precisely aligned over a three-month period in order to focus that light correctly. In March, the mirrors were brought into alignment with the telescope's primary imaging instrument, the Near-Infrared Camera, enabling it to focus and snap a crystal-clear image of a bright star. The team then continued aligning the mirrors with the JWST's remaining instruments, the Near-Infrared Spectrograph, Mid-Infrared Instrument, and Near Infrared Imager and Slitless Spectrograph -- a task that is now complete.

The team confirmed the mirrors were aligned and directing light onto the JWST's four instruments by capturing a set of test images covering the telescope's full-field of view [...]. The scientists say the optical performance of the telescope continues to exceed even their most optimistic expectations. With the mirrors now in position (save for some slight periodic adjustments here and there), the scientists are now turning their attention to commissioning of the science instruments. The unique lenses, masks, filters and other gear that make these highly sophisticated instruments tick will need to be precisely configured over the next two months, to ready the telescope for the start of its science operations in the middle of the year.