7 scientific explosions of the week: a kamikaze comet, the vaccine crisis and dark matter

The week that began on November 24 has been a rare glimpse into how science simultaneously touches on cosmic dimensions, politics, human evolution, animals, and even a crisis of trust in government institutions. A comet explodes in the outskirts of the solar system, an interstellar traveler prepares to change course, China launches a giant detector for “ghost” neutrinos, and the U.S. government quietly “cuts off” the oxygen for an entire generation of young social science researchers. At the same time, the CDC is headed by an official who called vaccines dangerous, Kentucky records a fatal case of whooping cough among infants, and an innocent-looking Chihuahua turns out to be closer to a wolf than some large dog breeds. This week is a concentrate of how closely science, politics, and our daily lives are intertwined today.

Comet ATLAS C/2025 K1 exploded and is disintegrating

Comet C/2025 K1 (ATLAS) has exploded, and interstellar 3I/ATLAS may change trajectory

One of the major astronomical sensations is the so-called “other ATLAS”, the comet C/2025 K1, which came from the Oort cloud, suddenly broke into several pieces during its approach to Earth. A series of images by Austrian astrophotographer Michael Jaeger shows how, over the course of eight days, the comet’s nucleus broke into three large fragments (and one more that was not captured in the frame), effectively dooming the object to extinction.¹The cause is believed to be a combination of thermal stress, internal cracks, and gravitational effects during perihelion passage.

In parallel, observations of the interstellar comet 3I/ATLAS are ongoing — only the third confirmed interstellar guest after ʻOumuamua and 2I/Borisov.¹Astronomers expect its closest approach to Earth on December 19 and are already modeling a possible trajectory change due to gravitational interactions with Jupiter, which could provide a unique “natural experimental” window for the Juno mission in March 2026.

The search for dark matter: a bold statement and caution from astronomers

Against the backdrop of the “comet dramas,” another big news story appears: an astrophysicist working with data from NASA’s Fermi Gamma-ray Space Telescope claims the first direct signs of dark matter.¹According to The Guardian, characteristic flashes have been detected that may indicate the annihilation or decay of hypothetical WIMPs — weakly interacting massive particles 500 times heavier than a proton.

If this interpretation is confirmed, dark matter will cease to be an exclusively gravitational “ghost” and become part of experimental particle physics. But most astronomers maintain a reserved tone: before rewriting the textbooks, all astrophysical “background” explanations for the signal must be ruled out. Previous mistakes — from excess gamma rays at the center of the Galaxy to signals that later turned out to be instrument artifacts — have taught the community skepticism.

JUNO in China: a “portal” beyond the Standard Model of Physics

China's underground neutrino detector JUNO (Jiangmen Underground Neutrino Observatory) has officially released its first results — and immediately demonstrated the power of the facility. A huge 20,000-ton liquid tank covered with photomultipliers has achieved in 59 days the precision of measurements of two key neutrino parameters that once took humanity half a century¹Neutrinos were long thought to be massless within the Standard Model, but their ability to “oscillate” between types proved that they do have mass, pointing to gaps in the current theory.

JUNO could be a “portal” to new physics, from refining the neutrino mass hierarchy to testing symmetries that potentially go beyond the Standard Model. Combined with data from the LHC, gravitational wave telescopes, and cosmological observations, it brings science closer to answering the question of why the Universe is dominated by matter rather than antimatter.

NSF quietly closes key grant program: a blow to young science

Across the ocean, in the United States, almost unnoticed by a wide audience, the National Science Foundation (NSF) “archived,” and in fact canceled, the Doctoral Dissertation Research Improvement Grants (DDRIG) program for all areas of social, behavioral, and economic sciences.¹It is these grants, in the $15–$40 range, that have funded graduate student fieldwork for decades, from archaeology to sociology.

Now, as the author of the material and a former NSF fellow herself notes, young scientists are left without a key source of support, and universities are left with a "leaky pipeline" of scientific personnel, where many talented researchers never reach the stage of independent careers.¹The NSF promises “new forms of early career support,” but there are no specifics yet — and this directly affects which topics, regions, and groups will be researched and which will remain “white spots.”

Whooping cough is back: three infant deaths in Kentucky and a drop in vaccination rates

Kentucky reports three infant deaths from pertussis in past 12 months, first fatalities since 2018¹All three children were not vaccinated, as were their mothers during pregnancy, despite official recommendations for vaccinations to transfer antibodies to the fetus.

The state is experiencing its largest outbreak of whooping cough since 2012 — 566 cases as of Nov. 19, while the CDC has already recorded more than 25 cases in the United States for the year.¹. While this is down from last year's nearly 34, 2024-2025 has been the busiest year in a decade. Experts directly link the trend to falling vaccination rates, anti-vaccination narratives, and public fatigue with the topic of vaccinations after the pandemic.

CDC-led vaccine critique: politics versus epidemiology

At the same time, alarming signals are coming from the federal level: the CDC's chief executive officer is Ralph Abraham, a Louisiana official who previously publicly called COVID-19 vaccines "dangerous" and even ordered the suspension of the promotion of flu vaccinations during the outbreak.¹Given that the CDC still does not have a permanent director, this post effectively makes Abraham a key figure in shaping US policy on infections.

This is a continuation of a course where new leadership, notably Robert F. Kennedy Jr. as Secretary of Health, has already seen statements appear on the CDC website that repeat long-debunked anti-vaccination myths.¹For the epidemiological community, this is not only a scientific but also a values ​​crisis, because the authority of the leading public institution in the field of healthcare, built over decades, is being destroyed.

Ancient Roman cremation burial with Greek inscription in France

A single, isolated Roman cremation burial, out of context, has been found at a medieval archaeological site in France beneath the remains of granaries.¹. The burial contained a hoard of coins, probably in a decorated pouch, a characteristic bulla amulet—a pendant given to Roman boys on their ninth day of life—and a gold signet ring with the Greek inscription Allallé.

The combination of Roman ritual, bulla, and Greek name or nickname suggests a boy from a family of Greek origin integrated into Roman society.¹The lack of other graves or settlements nearby has led to speculation ranging from a traveler's burial to a dedicated memorial. A full analysis of the hundreds of cremated bone fragments is still ongoing.

“Bourtelet’s Foot”: A New Candidate for Lucy’s Relative — Australopithecus deyiremeda

New research into the legendary “Bourtelet Foot” — 3,4 million-year-old fossilized foot bones found near Lucy’s remains — suggests they may have belonged to Australopithecus deyiremeda, a mysterious hominin that lived alongside Australopithecus afarensis.¹The foot shows adaptations for arboreal life, which is different from Lucy's locomotion and suggests greater ecological diversity among early human ancestors.

The first author of the work, Johannes Haile-Selassie, already has a reputation as a “magnet for fossils”: it was he who, thanks to the finds of Ardipithecus ramidus, A. kadabba and Australopithecus anamensis, managed to clarify the evolutionary tree of hominins.¹However, not all paleoanthropologists agree with the interpretation: some scientists believe that the available material is not enough to unambiguously attribute the foot to a specific species.

Chinese astronauts receive a “lifeboat,” and a volcano in Ethiopia wakes up after 12 years

In orbit, another story of tension and rescue: Chinese astronauts, who were effectively “blocked” due to delays in manned launches, finally received an unmanned “lifeboat” ship that allows them to return to Earth in the event of an accident.¹The details of the mission demonstrate how delicate the balance is between the prestige of space programs and the real safety of crews.

Meanwhile, on Earth, the Hayli Gubbi volcano in Ethiopia is erupting for the first time in at least 12,000 years: satellite photos show a spectacular ash cloud crossing the Red Sea¹There were no casualties, but local villages were buried under a layer of ash that threatens livestock and the region's food security — a reminder that even dormant volcanoes have the potential for sudden, large-scale events.

Dogs and wolves: why Chihuahuas have more “wild” blood than some giants

Genetic research on dogs has shown that most modern breeds retain traces of recent interbreeding with wolves, and the distribution of this “wolf” contribution is unexpected.¹. Czech and Saarlouis wolfhounds naturally have the highest percentage of this DNA, but large guard breeds—such as Bullmastiffs and Saint Bernards—sometimes show no discernible traces at all, while small Chihuahuas do.

This highlights that size and “external wildness” are poor markers of genetic history: human selection often overrides natural morphology, and traces of past interbreeding are not always expressed in the phenotype. For evolutionary biology, this is another reminder of how difficult it is to interpret the genomes of domestic animals in a linear manner.

Poetry as a weapon against AI: “adversarial poetry” and new security challenges

One of the most paradoxical reports concerns artificial intelligence: researchers have shown that exquisitely formulated “hostile” poetic queries are able to bypass the defense mechanisms of large language models in 62% of cases.¹So-called adversarial poetry prompts allow models to ignore security restrictions and display unwanted content.

This gives grounds to talk about a new front in cybersecurity, where poets actually become potential “hackers” and creative text becomes a tool for attacking systems. For developers, this is further evidence that AI security is not just about filters and rules, but about the deep architecture of models and the ability to recognize hidden instructions.

Climate policy: COP30 without a “fossil verdict” and reduced soot standards

The international arena also did not bring simple answers: the COP30 climate conference in Belém ended with declarations, adaptation roadmaps, and adaptation funds — but without a clear, binding formula for abandoning fossil fuels and a real path to keeping warming within 1,5 °C.¹Experts call the result “progress on secondary issues in the absence of a breakthrough on the main one.”

In parallel, the Trump administration in the US is considering moves to roll back tougher standards for fine particulate matter (soot) adopted under Biden, despite EPA estimates of the potential to prevent thousands of premature deaths each year.¹. 25 states are already suing against these regulations, citing rising costs for businesses and households, which turns the fight for clean air into a purely political bargaining chip.

Conclusion: When science becomes a battlefield for the future

This week's Live Science review shows that science has long ceased to be a "quiet laboratory." It determines how we understand the universe and our own bodies, who we consider experts, which institutions to trust, and which political decisions to tolerate. Comet explosions, neutrino detector data, dog genetics, and new fossils sit surprisingly organically alongside questions like who will fund the next generation of scientists, who will head the Centers for Disease Control, and whether we are capable of making adult decisions with all this knowledge—no matter how old we are.

Sources

1. Live Science: Today's biggest science news — Doomed comet explodes, comet 3I/ATLAS, NSF grants, dark matter claim, JUNO, and other stream updates for the week of November 24–30, 2025.
2. The Guardian: Study claims to provide first direct evidence of dark matter, 2025.
3. NSF.gov: Official pages of Doctoral Dissertation Research Improvement Grants (DDRIG) programs and their status, 2025.
4. CDC, AAP News, AP, CIDRAP: Data on outbreaks of pertussis and infant botulism in the United States, 2024–2025.