Enlarge / Artist's illustration of catch arms ensnaring SpaceX's Super Heavy booster. (credit: SpaceX)

The Federal Aviation Administration has signaled to SpaceX that it won't approve a launch license for the next test flight of the Starship rocket until at least late November, the company said in a statement on Tuesday.

This is more than two months later than the mid-September timeframe the FAA previously targeted for determining whether to approve a launch license for the next Starship flight. SpaceX says the Super Heavy booster and Starship upper stage for the next launch—the fifth full-scale test flight of the Starship program—have been ready to launch since the first week of August.

"The flight test will include our most ambitious objective yet: attempt to return the Super Heavy booster to the launch site and catch it in mid-air," SpaceX said in a statement.

Enlarge (credit: Getty | MICHAEL KAPPELER)

The human body is full of marvels, some even bordering on miraculous. That includes the limited ability for nerves to regenerate after injuries, allowing people to regain some function and feeling. But that wonder can turn, well, unnerving when those regenerated wires end up in a jumble.

Such is the case for a rare neurological condition called gustatory hyperhidrosis, also known as Frey's syndrome. In this disorder, nerves regenerate after damage to either of the large saliva glands that sit on either side of the face, just in front of the ears, called the parotid glands. But that nerve regrowth goes awry due to a quirk of anatomy that allows the nerves that control saliva production for eating to get tangled with those that control sweating for temperature control.

In this week's issue of the New England Journal of Medicine, doctors in Taiwan report an unusual presentation of the disorder in a 76-year-old woman. She told doctors that, for two years, every time she ate, her face would begin profusely sweating. In the clinic, the doctors observed the phenomenon themselves. They watched as she took a bite of pork jerky and began chewing.

Enlarge / "The only species of fish confirmed to be able to escape from the digestive tract of the predatory fish after being captured.” (credit: Hasegawa et al./Current Biology)

Imagine you're a Japanese eel, swimming around just minding your own business when—bam! A predatory fish swallows you whole and you only have a few minutes to make your escape before certain death. What's an eel to do? According to a new paper published in the journal Current Biology, Japanese eels opt to back their way out of the digestive tract, tail first, through the esophagus, emerging from the predatory fish's gills.

Per the authors, this is the first such study to observe the behavioral patterns and escape processes of prey within the digestive tract of predators. “At this point, the Japanese eel is the only species of fish confirmed to be able to escape from the digestive tract of the predatory fish after being captured,” co-author Yuha Hasegawa at Nagasaki University in Japan told New Scientist.

There are various strategies in nature for escaping predators after being swallowed. For instance, a parasitic worm called Paragordius tricuspidatus can force its way out of a predator’s system when its host organism is eaten. There was also a fascinating study in 2020 by Japanese scientists on the unusual survival strategy of the aquatic beetle Regimbartia attenuata. They fed a bunch of the beetles to a pond frog (Pelophylax nigromaculatus) under laboratory conditions, expecting the frog to spit the beetle out. That's what happened with prior experiments on bombardier beetles (Pheropsophus jessoensis), which spray toxic chemicals (described as an audible "chemical explosion") when they find themselves inside a toad's gut, inducing the toad to invert its own stomach and vomit them back out.

Enlarge / Quantinuum's H2 "racetrack" quantum processor. (credit: Quantinuum)

On Tuesday, Microsoft made a series of announcements related to its Azure Quantum Cloud service. Among them was a demonstration of logical operations using the largest number of error-corrected qubits yet.

"Since April, we've tripled the number of logical qubits here," said Microsoft Technical Fellow Krysta Svore. "So we are accelerating toward that hundred-logical-qubit capability." The company has also lined up a new partner in the form of Atom Computing, which uses neutral atoms to hold qubits and has already demonstrated hardware with over 1,000 hardware qubits.

Collectively, the announcements are the latest sign that quantum computing has emerged from its infancy and is rapidly progressing toward the development of systems that can reliably perform calculations that would be impractical or impossible to run on classical hardware. We talked with people at Microsoft and some of its hardware partners to get a sense of what's coming next to bring us closer to useful quantum computing.

Enlarge (credit: eugenekeebler via Getty Images)

In an age when you can get just about anything online, it's probably no surprise that you can buy a diamond-making machine for $200,000 on Chinese eCommerce site Alibaba. If, like me, you haven't been paying attention to the diamond industry, it turns out that the availability of these machines reflects an ongoing trend toward democratizing diamond production—a process that began decades ago and continues to evolve.

The history of lab-grown diamonds dates back at least half a century. According to Harvard graduate student Javid Lakha, writing in a comprehensive piece on lab-grown diamonds published in Works in Progress last month, the first successful synthesis of diamonds in a laboratory setting occurred in the 1950s. Lakha recounts how Howard Tracy Hall, a chemist at General Electric, created the first lab-grown diamonds using a high-pressure, high-temperature (HPHT) process that mimicked the conditions under which diamonds form in nature.

Since then, diamond-making technology has advanced significantly. Today, there are two primary methods for creating lab-grown diamonds: the HPHT process and chemical vapor deposition (CVD). Both types of machines are now listed on Alibaba, with prices starting at around $200,000, as pointed out in a Hacker News comment by engineer John Nagle (who goes by "Animats" on Hacker News). A CVD machine we found is more pricey, at around $450,000.

Enlarge / A Crew Dragon spacecraft separates from the upper stage of a Falcon 9 rocket on Tuesday morning. (credit: SpaceX)

A Falcon 9 rocket streaked into the black predawn sky above Florida on Tuesday, carrying four people on the most ambitious private human spaceflight to date.

The crew of the Polaris Dawn mission, led by a billionaire pilot named Jared Isaacman, were injected into an orbit intended to reach an apogee of 1,200 km and a perigee of 190 km. They plan to raise Crew Dragon's orbit to an apogee of 1,400 km near the end of the first day of flight.

Shortly after the mission's launch, Isaacman thanked the flight controllers, engineers, and technicians at SpaceX that made the privately funded trip possible. "We wouldn't be on this journey without all 14,000 of you back at SpaceX," he said.

Enlarge / The main body of NASA's Europa Clipper spacecraft is reflected in one of the mission's deployable solar array wings during testing at Kennedy Space Center in Florida. (credit: NASA/Frank Michaux)

For a while earlier this summer, it looked like NASA's flagship mission to study Jupiter's icy moon Europa might miss its launch window this year.

In May, engineers raised concerns that transistors installed throughout the spacecraft might be susceptible to damage from radiation, an omnipresent threat for any probe whipping its way around Jupiter. The transistors are embedded in the spacecraft's circuitry and are responsible for approximately 200 unique applications, many of which are critical to keeping the mission operating as it orbits Jupiter and repeatedly zooms by Europa, interrogating the frozen moon with nine science instruments.

The transistors on the Europa Clipper spacecraft are already installed, and removing them for inspections or replacement would delay the mission's launch until late next year. Europa Clipper has a 21-day launch window beginning October 10 to begin its journey into the outer solar system.

Enlarge / A man helps a boy look at a handgun during the National Rifle Association's Annual Meetings & Exhibits at the Indiana Convention Center in Indianapolis on April 16, 2023. (credit: Getty | Jeremy Hogan)

Gun-owning parents who teach their kids how to responsibly handle and shoot a gun are less likely to store those deadly weapons safely, according to a survey-based study published Monday in JAMA Pediatrics.

The study, conducted by gun violence researchers at Rutgers University, analyzed survey responses from 870 gun-owning parents. Of those, the parents who responded that they demonstrated proper handling to their child or teen, had their kid practice safe handling under supervision, and/or taught their kid how to shoot a firearm were more likely than other gun-owning parents to keep at least one gun unsecured—that is, unlocked and loaded. In fact, each of the three responses carried at least double the odds of the parent having an unlocked, loaded gun around, the study found.

The survey responses may seem like a paradox for parents who value safe and responsible gun handling. Previous studies have suggested that safe storage of firearms can reduce the risk of injuries and deaths among children and teens. A 2005 JAMA study, for instance, found lower risks of firearm injuries among children and teens when parents securely store their firearms—meaning they kept them locked, unloaded, and stored separately from locked ammunition. And as of 2020, firearm-related injuries became the leading cause of death among children and teens in the US.

Enlarge / Medieval scholar Lisa Fagin Davis examined multispectral images of 10 pages from the Voynich manuscript. (credit: Lisa Fagin Davis)

About 10 years ago, several folios of the mysterious Voynich manuscript were scanned using multispectral imaging. Lisa Fagin Davis, executive director of the Medieval Academy of America, has analyzed those scans and just posted the results, along with a downloadable set of images, to her blog, Manuscript Road Trip. Among the chief findings: Three columns of lettering have been added to the opening folio that could be an early attempt to decode the script. And while questions have long swirled about whether the manuscript is authentic or a clever forgery, Fagin Davis concluded that it's unlikely to be a forgery and is a genuine medieval document.

As we've previously reported, the Voynich manuscript is a 15th century medieval handwritten text dated between 1404 and 1438, purchased in 1912 by a Polish book dealer and antiquarian named Wilfrid Voynich (hence its moniker). Along with the strange handwriting in an unknown language or code, the book is heavily illustrated with bizarre pictures of alien plants, naked women, strange objects, and zodiac symbols. It's currently kept at Yale University's Beinecke Library of rare books and manuscripts. Possible authors include Roger Bacon, Elizabethan astrologer/alchemist John Dee, or even Voynich himself, possibly as a hoax.

There are so many competing theories about what the Voynich manuscript is—most likely a compendium of herbal remedies and astrological readings, based on the bits reliably decoded thus far—and so many claims to have deciphered the text, that it's practically its own subfield of medieval studies. Both professional and amateur cryptographers (including codebreakers in both World Wars) have pored over the text, hoping to crack the puzzle.

Enlarge / At the US Army’s Camp Century on the Greenland ice sheet, an Army truck equipped with a railroad wheel conversion rides on 1,300 feet of track under the snow. (credit: Robert W. Gerdel Papers, Ohio State University)

In recent years, the Arctic has become a magnet for climate change anxiety, with scientists nervously monitoring the Greenland ice sheet for signs of melting and fretting over rampant environmental degradation. It wasn’t always that way.

At the height of the Cold War in the 1950s, as the fear of nuclear Armageddon hung over American and Soviet citizens, ­idealistic scientists and engineers saw the vast Arctic region as a place of unlimited potential for creating a bold new future. Greenland emerged as the most tantalizing proving ground for their research.

Scientists and engineers working for and with the US military cooked up a rash of audacious cold-region projects—some innovative, many spit-balled, and most quickly abandoned. They were the stuff of science fiction: disposing of nuclear waste by letting it melt through the ice; moving people, supplies, and missiles below the ice using subways, some perhaps atomic powered; testing hovercraft to zip over impassable crevasses; making furniture from a frozen mix of ice and soil; and even building a nuclear-powered city under the ice sheet.

Enlarge / Loads of lava: Kasbohm with a few solidified lava flows of the Columbia River Basalts. (credit: Joshua Murray)

As our climate warms beyond its historical range, scientists increasingly need to study climates deeper in the planet’s past to get information about our future. One object of study is a warming event known as the Miocene Climate Optimum (MCO) from about 17 to 15 million years ago. It coincided with floods of basalt lava that covered a large area of the Northwestern US, creating what are called the “Columbia River Basalts.” This timing suggests that volcanic CO₂ was the cause of the warming.

Those eruptions were the most recent example of a “Large Igneous Province,” a phenomenon that has repeatedly triggered climate upheavals and mass extinctions throughout Earth’s past. The Miocene version was relatively benign; it saw CO₂ levels and global temperatures rise, causing ecosystem changes and significant melting of Antarctic ice, but didn’t trigger a mass extinction.

A paper just published in Geology, led by Jennifer Kasbohm of the Carnegie Science’s Earth and Planets Laboratory, upends the idea that the eruptions triggered the warming while still blaming them for the peak climate warmth.

Enlarge / Power lines are cast in silhouette as the Creek Fire creeps up on on the Shaver Springs community off of Tollhouse Road on Tuesday, Sept. 8, 2020, in Auberry, California. (credit: Kent Nishimura / Los Angeles Times)

This article originally appeared on Inside Climate News, a nonprofit, independent news organization that covers climate, energy and the environment. It is republished with permission. Sign up for their newsletter here. 

Most people are “very” or “extremely” concerned about the state of the natural world, a new global public opinion survey shows.

Roughly 70 percent of 22,000 people polled online earlier this year agreed that human activities were pushing the Earth past “tipping points,” thresholds beyond which nature cannot recover, like loss of the Amazon rainforest or collapse of the Atlantic Ocean’s currents. The same number of respondents said the world needs to reduce carbon emissions within the next decade.

Enlarge / Boeing's Starliner spacecraft after landing Friday night at White Sands Space Harbor, New Mexico. (credit: Boeing)

Boeing's Starliner spacecraft sailed to a smooth landing in the New Mexico desert Friday night, an auspicious end to an otherwise disappointing three-month test flight that left the capsule's two-person crew stuck in orbit until next year.

Cushioned by airbags, the Boeing crew capsule descended under three parachutes toward an on-target landing at 10:01 pm local time Friday (12:01 am EDT Saturday) at White Sands Space Harbor, New Mexico. From the outside, the landing appeared just as it would have if the spacecraft brought home NASA astronauts Butch Wilmore and Suni Williams, who became the first people to launch on a Starliner capsule on June 5.

But Starliner's cockpit was empty as it flew back to Earth Friday night. Last month, NASA managers decided to keep Wilmore and Williams on the International Space Station (ISS) until next year after agency officials determined it was too risky for the astronauts to return to the ground on Boeing's spaceship. Instead of coming home on Starliner, Wilmore and Williams will fly back to Earth on a SpaceX Dragon spacecraft in February. NASA has incorporated the Starliner duo into the space station's long-term crew.

Enlarge / The First Combat of Gav and Talhand', Folio from a Shahnama (Book of Kings), ca. 1330–40, Attributed to Iran, probably Isfahan, Ink, opaque watercolor, gold, and silver on paper, Page: 8 1/16 x 5 1/4 in. (20.5 x 13.3 cm), Codices, Three battles between two Indian princes - half brothers contending for the throne - resulted in the invention of the game of chess, to explain the death of one of them to their grieving mother. The Persian word shah mat, or checkmate, indicating a position of no escape, describes the plight of Talhand at the end of the third battle. (Photo by: Sepia Times/Universal Images Group via Getty Images)

The three princes of Sarandib—an ancient Persian name for Sri Lanka—get exiled by their father the king. They are good boys, but he wants them to experience the wider world and its peoples and be tested by them before they take over the kingdom. They meet a cameleer who has lost his camel and tell him they’ve seen it—though they have not—and prove it by describing three noteworthy characteristics of the animal: it is blind in one eye, it has a tooth missing, and it has a lame leg.

After some hijinks the camel is found, and the princes are correct. How could they have known? They used their keen observational skills to notice unusual things, and their wit to interpret those observations to reveal a truth that was not immediately apparent.

It is a very old tale, sometimes involving an elephant or a horse instead of a camel. But this is the version written by Amir Khusrau in Delhi in 1301 in his poem The Eight Tales of Paradise, and this is the version that one Christopher the Armenian clumsily translated into the Venetian novel The Three Princes of Serendip, published in 1557; a publication that, in a roundabout way, brought the word “serendipity” into the English language.

Enlarge / The influenza virus from an image produced with transmission electron microscopy. Viral diameter ranges from around 80 to 120 nm. (credit: Getty | BSIP)

A person in Missouri with no reported exposure to animals was confirmed to have been infected with H5-type bird flu, the Missouri Department of Health and Senior Services (MDHSS) announced late Friday.

MDHSS reported that the person, who has underlying medical conditions, was hospitalized on August 22 and tested positive for an influenza A virus. Further testing at the state's public health laboratory indicated that the influenza A virus was an H5-type bird flu. The Centers for Disease Control and Prevention has now confirmed that finding and is carrying out further testing to determine if it is the H5N1 strain currently causing a widespread outbreak among US dairy cows.

It remains unclear if the person's bird flu infection was the cause of the hospitalization or if the infection was discovered incidentally. The person has since recovered and was discharged from the hospital. In its announcement, MDHSS said no other information about the patient will be released to protect the person's privacy.

Enlarge / Boeing's Starliner spacecraft is set to undock from the International Space Station on Friday evening. (credit: NASA)

Boeing's Starliner spacecraft will gently back away from the International Space Station Friday evening, then fire its balky thrusters to rapidly depart the vicinity of the orbiting lab and its nine-person crew.

NASA asked Boeing to adjust Starliner's departure sequence to get away from the space station faster and reduce the workload on the thrusters to reduce the risk of overheating, which caused some of the control jets to drop offline as the spacecraft approached the outpost for docking in June.

The action begins at 6:04 pm EDT (22:04 UTC) on Friday, when hooks in the docking mechanism connecting Starliner with the International Space Station (ISS) will open, and springs will nudge the spacecraft away its mooring on the forward end of the massive research complex.

Enlarge / The second stage of the New Glenn rocket rolled to the launch site this week. (credit: Blue Origin)

NASA and Blue Origin announced Friday that they have agreed to delay the launch of the ESCAPADE mission to Mars until at least the spring of 2025.

The decision to stand down from a launch attempt in mid-October was driven by a deadline to begin loading hypergolic propellant on the two small ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) spacecraft. While it is theoretically possible to offload fuel from these vehicles for a future launch attempt, multiple sources told Ars that such an activity would incur significant risk to the spacecraft.

Forced to make a call on whether to fuel, NASA decided not to. Although the two spacecraft were otherwise ready for launch, it was not clear the New Glenn rocket would be similarly ready to go.

Enlarge (credit: Getty | George Frey)

While supplies of Adderall and its generic versions are finally recovering after a yearslong shortage, the Drug Enforcement Administration is now working to curb the short supply of another drug for attention-deficit/hyperactivity disorder: Vyvanse (lisdexamfetamine) and its generic versions.

This week, the DEA said it will increase the allowed production amount of lisdexamfetamine by roughly 23.5 percent, increasing the current 26,500 kg quota by 6,236 kg, for a new total of 32,736 kg. The DEA also allowed for a corresponding increase in d-amphetamine, which is needed for production of lisdexamfetamine.

"These adjustments are necessary to ensure that the United States has an adequate and uninterrupted supply of lisdexamfetamine to meet legitimate patient needs both domestically and globally," the DEA said.

Enlarge / A "selfie" photo of China's Zhurong rover and the Tianwen-1 landing platform on Mars in 2021. (credit: China National Space Administration)

China plans to launch two heavy-lift Long March 5 rockets with elements of the Tianwen-3 Mars sample return mission in 2028, the mission's chief designer said Thursday.

In a presentation at a Chinese space exploration conference, the chief designer of China's robotic Mars sample return project described the mission's high-level design and outlined how the mission will collect samples from the Martian surface. Reports from the talk published on Chinese social media and by state-run news agencies were short on technical details and did not discuss any of the preparations for the mission.

Public pronouncements by Chinese officials on future space missions typically come true, but China is embarking on challenging efforts to explore the Moon and Mars. China aims to land astronauts on the lunar surface by 2030 in a step toward eventually building a Moon base called the International Lunar Research Station.