The supernova, named AT 2026abck, dates to around 1.15 billion years after the Big Bang, when the universe was less than one-tenth of its current age and bursting with massive stars flickering into life. The massive exploding star violently released its light over 12.5 billion years ago, according to the researchers — so long ago that the distance between us has effectively ballooned sixfold due to the expansion of the universe.

The discovery was described in a paper that was uploaded to the preprint server arXiv Sept. 29 and has not yet been peer reviewed. According to the study authors, this ancient speck of light is stupendously bright.

"At its peak, the supernova is about 8 billion times the brightness of the sun … almost as bright as the whole Milky Way Galaxy," study co-author Xiaohui Fan, an observational cosmologist and professor of astronomy at the University of Arizona, told Live Science via email. "Over the course of the explosion, it radiates the energy that the sun will radiate over about 2 billion years."

A beacon from the beginning of space-time

The newly discovered supernova shines brilliantly at over 30,000 degrees Fahrenheit (16,000 degrees Celsius). Its incandescent shell of ejected material has billowed to a radius of approximately 46 astronomical units ‪—‬ about 46 times the distance between Earth and the sun, or about as far as Pluto swings at its farthest point from the sun.

The supernova's host galaxy, designated ID101411, holds about 6.3 billion solar masses and is "forming new stars more than ten times faster than our Milky Way," first author Mingyang Zhuang, an observational astrophysicist at the University of Illinois Urbana-Champaign, told Live Science via email.

As with other early galaxies, ID101411 is deficient in metals, meaning any elements heavier than hydrogen and helium, because not enough time had passed to create those heavier elements in the forges of massive stars and their apocalyptic explosions.

The study authors estimate that they observed the supernova as it would have looked just four to 10 days after it exploded. Although this is relatively common, spotting one at such an incredible distance "is extremely rare," Zhuang emphasized. "You have to observe the exact same tiny patch of sky repeatedly with [JWST], and the explosion has to happen at the right moment. We were lucky."

There's another layer of luck that made the discovery even more remarkable: It was observed without the aid of a cosmological quirk called gravitational lensing — a phenomenon predicted by Einstein in which the gravity of a massive object in space bends and magnifies the light emitted by objects behind it.

"Most supernovas this far away were found with help from a massive foreground galaxy cluster acting as a natural magnifying glass," Zhuang explained. "It's the most distant one we've actually seen appear."

This supernova was discovered as part of the NEXUS Treasury program, in which JWST intermittently scours patches of the sky for ancient explosions. It had previously observed the explosion's host galaxy over the past few years and finally witnessed the supernova on Aug. 7 of this year.

An explosion in slow motion

Intriguingly, the star had not yet exploded in JWST's previous viewing, on May 28, 2026, meaning that 71 days passed on our Earthly clocks, even though only about 12 days passed in the supernova's own time frame.

This highlights a mind-bending cosmological effect: The universe's expansion doesn't just stretch space; it slows down time from our perspective.

"Because the universe has expanded since this light was emitted, everything about this explosion appears to us in slow motion, about six times slower than it actually happened," Zhuang said. "Changes that took one week at the supernova take about six weeks to unfold from our point of view."

Mysteries still remain about the nature of this ancient explosion that shone so brilliantly we can observe it across nearly the entire universe.

Rather than a conventional core collapse supernova ‪—‬ in which a star between approximately eight and 50 times the mass of the sun exhaust its nuclear fuel and suffers a rapid core collapse and subsequent explosion ‪—‬ the recently discovered supernova may be one of the universe's rarest, most powerful explosions, the study authors said. Known as a superluminous supernova, this type of explosion releases tens or hundreds of times more energy than conventional supernovas. Whether the explosion continues to heat up or starts to cool could reveal exactly what is happening in its environment and what caused it, the team said.

"Our interpretation is still preliminary," Zhuang concluded. "Follow-up observations will tell us more about exactly what kind of explosion this was."

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The Voynich manuscript is a medieval codex made up of leaves of parchment carbon-dated to the early 15th century. Its 240 pages are covered with about 38,000 words of a unique script called "Voynichese" along with illustrations of people, plants and astrological symbols. Also known as the Beinecke Cipher manuscript, the document was initially owned by a Holy Roman emperor and was purchased by Wilhelm Voynich in 1912. Since 1969, the manuscript has been in the collection of Yale University's rare book library. Experts have unsuccessfully tried to decipher the manuscript for more than a century.

"We don't know if it's a code," Lisa Fagin Davis, study co-author and executive director of the Medieval Academy of America, told Live Science. "But there are some odd characteristics of the Voynich manuscript in terms of its physical structure."

When doing research on the number of scribes who copied the document, Davis realized from the handwriting that the manuscript's pages alternate in ways that don't make sense. In addition, she said, "there are several examples where the image goes off the page in the middle and comes out on the other side, even though there are a bunch of pages in between."

In a study published Monday (Oct. 19) in the journal Digital Medievalist, Davis and co-author Colin Layfield, an information systems researcher at the University of Malta, suggested that the inconsistent structure of the enigmatic manuscript is the result of someone mis-binding a manuscript they were unable to read.

Medieval manuscripts were made up of rectangular sheets of parchment (animal skin), typically folded in half to produce what experts call a bifolium. Around five bifolia would typically be nested together, creating what experts call a quire. Then, a stack of quires would be bound together along the spine to create a book. However, Davis and Layfield suggested that the Voynich manuscript was intended to be a stack of singulions — a series of loose bifolia never meant to be bound together as a quire or a book.

This is not the first time a researcher has suggested the Voynich manuscript has pages out of order. But Davis and Layfield analyzed the graphic properties of the untranslated document to see if their hypothesis made sense.

"We're viewing it as a text and assuming it has a message," Layfield told Live Science, which means it should be possible to statistically compare blocks of text to see if they're similar or disconnected. Layfield used a technique called latent semantic analysis (LSA), which is a natural language processing technique invented in the 1980s to find hidden patterns in texts.

LSA is particularly useful for small sets of data, Layfield explained. "Modern AI techniques need ridiculous amounts of data to train on, which we just don't have. We've got just 35,000 or so words. That's it." The researchers' LSA analysis of the Voynich manuscript revealed that some pages had low similarity, suggesting they may not have gone together, while others had high similarity, bolstering the idea that they were supposed to be read together.

By looking at the Voynich manuscript as a collection of singulions, Davis and Layfield solved some of the nagging issues with the document.

"When you start to think about it in the context of the other strange features of the manuscript, all of those problems are resolved," Davis said. "It solves the problem of each scribe writing one sheet. It solves the problem of the images crossing the gutter."

This means that any previous work on the Voynich manuscript that assumes it was ordered correctly now needs to be reconsidered, she said, but it also means there is new progress on the book.

"This work helps us think about whether there's actual meaning underneath it all," Davis said. "It doesn't get us there," she said about a definitive translation, "but it moves the ball because you can't make sense out of a book where all the pages are mixed up."

Davis is optimistic that someone will crack the Voynich mystery, in part because a similar modern puzzle known as Cain's Jawbone has been successfully deciphered by a handful of people. This devilishly difficult linguistic puzzle from the 1930s consists of 100 pages of a murder mystery arranged in the wrong order. Due to the unique nature of the text and its vague, stylized language, even AI has failed to solve it.

"We have some ideas for other work we want to do," Davis said. For example, there's a large water stain in the upper margin of some of the pages of the Voynich manuscript. "The stain should be symmetrical from one page to the next but it's not. That also supports the idea that the manuscript is bound out of order."

Davis and Layfield are thinking about ways to compare the stain shapes across the pages, as that may help them reorder the incorrectly organized pages.

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Delusions are false beliefs that are very difficult to shake; for example, a person might believe they are being stalked when they aren't or think that a major disaster is about to occur without any evidence to suggest so. In the trial, researchers found that a 10-minute session of the ultrasound treatment reduced the severity of delusions for at least a week in patients with schizophrenia or a related disorder.

This targeted ultrasound treatment delivered directly to the brain could avoid some of the full-body effects of antipsychotic medications, such as weight gain and high blood pressure. That said, the new results, published Tuesday (Oct. 20) in the journal npj Acoustics, are a first step and will need further verification in larger trials.

"It's too early to know for certain what the therapeutic benefits will be, but it's very exciting," study co-author Dr. Donald Goff, a professor of psychiatry at the New York University Grossman School of Medicine, told Live Science.

Targeting deep brain structures

The pilot study included 10 patients with either schizophrenia or schizoaffective disorder. In both conditions, patients experience psychotic symptoms, including delusions and hallucinations. Schizoaffective disorder also includes mood symptoms, such as mania.

The researchers interviewed each participant to characterize the content of their delusions, and also documented their cognitive state and experiences with auditory hallucinations — perceptions of sounds that aren't actually occurring. The participants then received both an ultrasound treatment and a placebo treatment, spaced one week apart.

Other noninvasive therapies — such as transcranial magnetic stimulation, which uses magnetic fields — can also stimulate the brain. But the ultrasound technique differs from these therapies because ultrasound waves can penetrate deeper into the brain with greater specificity, study co-author Shy Shoham, a neural engineer at NYU Grossman, told Live Science. He compared the way a transducer directs ultrasound waves toward a given brain region with the way a lens focuses light.

In this case, the researchers focused this lens on a brain network called the cortico-striatal-pallido-thalamic circuit, which includes structures underneath the brain's outer cortex. The relationship between this circuit and schizophrenia symptoms is still somewhat unclear, partly because its deeper components are hard to study in adequate resolution with MRI, said co-author Dr. Wei Qi, a clinical assistant professor of psychiatry at NYU Grossman. However, some past studies have suggested that this network plays a part in schizophrenia.

Much of what scientists know about the network comes from research in movement disorders, such as Parkinson's disease, in which there is an imbalance between excitation and inhibition in the neurons that control movement. A similar dynamic could help to explain symptoms of schizophrenia, the scientists think.

"Our hypothesis is that, in schizophrenia, there is an imbalance between excitation and inhibition regarding what in the environment is actually important," Qi told Live Science. "The failure to inhibit irrelevant signals could be the basis of psychosis."

"Quite optimistic"

The researchers surveyed the study participants after each treatment, asking about the degree of belief each person had in their delusions and the amount of stress they caused. Compared with the placebo treatment, the ultrasound stimulation was associated with less-severe delusions over the following week. There was no significant change in patients' auditory hallucinations or overall cognition, though.

The ultrasound therapy came with mild side effects, such as fatigue and headache. Some patients had transient increases in delusions, which Qi attributed to normal fluctuations in symptoms that are expected in schizophrenia. These outcomes were just as common after the placebo treatment, so they may not be related to the ultrasound specifically.

The stimulation was aimed specifically at the right side of a brain structure called the globus pallidus internus (GPI). In a previous study, the authors found that greater connectivity between this region and another structure — the dorsal anterior cingulate gyrus — was linked to more-severe psychotic symptoms in schizophrenia. So, they made the GPI their target.

To date, "there haven't been many successful therapeutic attempts at targeting some of these deeper structures," said Dr. Deepak Sarpal, an associate professor of psychiatry at the University of Pittsburgh School of Medicine who was not involved with the study. Ultrasound waves reach brain regions under the cortex in a less-invasive manner than deep brain stimulation, in which a surgeon implants an electrode in a patient's brain, Sarpal noted.

The researchers are not the only group using transcranial ultrasound to influence the cortico-striatal-pallido-thalamic circuit. Earlier this year, another group stimulated portions of the striatum, which is located directly under the cortex, in patients with schizophrenia. They evaluated hallucinations rather than delusions, finding that the treatment reduced symptoms for at least a week after the procedure.

In this line of research, the targeted nature of transcranial ultrasound presents advantages as a research tool as well as a treatment approach.

"If we find that a specific circuit or a node in a circuit seems to be closely linked to symptoms we're trying to treat, then it will be a matter of understanding what pattern of stimulation may allow us to correct that," Goff said. Qi, Goff and colleagues now plan to continue testing their technique on more patients and to experiment with different doses of ultrasound.

"A lot more work needs to be done," Goff said, "but we're really quite optimistic about its promise."

This article is for informational purposes only and is not meant to offer medical advice.

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