Science

Gold and other heavy elements are born in some of the universe’s most violent events—but scientists still struggle to understand the nuclear steps that create them. Now, nuclear physicists have uncovered three key discoveries about how unstable atomic nuclei decay during the rapid neutron-capture process, the chain reaction responsible for forging elements like gold and platinum.

Gold and other heavy elements are born in some of the universe’s most violent events—but scientists still struggle to understand the nuclear steps that create them. Now, nuclear physicists have uncovered three key discoveries about how unstable atomic nuclei decay during the rapid neutron-capture process, the chain reaction responsible for forging elements like gold and platinum.

As AI systems began acing traditional tests, researchers realized those benchmarks were no longer tough enough. In response, nearly 1,000 experts created Humanity’s Last Exam, a massive 2,500-question challenge covering highly specialized topics across many fields. The exam was engineered so that any question solvable by current AI models was removed. Early results show even the most advanced systems still struggle — revealing a surprisingly large gap between AI performance and true expert-level knowledge.

Scientists have found a promising new way to manufacture one of industry’s toughest materials—tungsten carbide–cobalt—using advanced 3D printing. Normally, producing this ultra-hard material requires high-pressure processes that waste large amounts of expensive tungsten and cobalt. The new approach uses a hot-wire laser technique that softens the metals rather than fully melting them, allowing manufacturers to deposit the material only where it’s needed.

Scientists analyzing a gravitational-wave signal have discovered that a neutron star and black hole spiraled together on an oval-shaped orbit just before merging. This unusual motion, detected in the event GW200105, contradicts the long-held expectation that such pairs settle into nearly perfect circles before collision. The eccentric orbit suggests the system likely formed in a chaotic stellar environment with strong gravitational interactions.

Toys powered by AI show a worrying lack of emotional understanding. But we need to understand the risks and benefits of the technology so the industry can be regulated, not outright banned

What happens when a solar superstorm hits Mars? Thanks to the European Space Agency’s Mars orbiters, we now know: glitching spacecraft and a supercharged upper atmosphere.

Rocky planets are found in abundance around M-type stars (red dwarfs), so finding another one doesn't always generate headlines. But an international team of astronomers say that one recent M-dwarf rocky planet found by TESS is especially noteworthy. This one can serve as a benchmark for comparative studies of this type of exoplanet and their at-risk atmospheres.

Astronomers say unusual readings from a star system 11,000 light-years away suggest that two of the planets circling the star crashed into each other, creating a huge, light-obscuring cloud of rocks and dust.

A neutron star merger is an extraordinary event. It features extremely powerful, chaotic magnetic fields that generate extremely energetic photons. Supercomputer simulations show that the extreme gamma-ray photons created in the mayhem can't even escape the chaos.

Body mass index (BMI) is used as a global standard for measuring health, but does it actually tell you anything about how healthy you are on an individual level? Carissa Wong explains the problems with this flawed tool

The story of a wildflower that adapted to a severe drought in California raises hopes that evolution will come to the rescue of species hit by climate change, but there are limits

So why should we expect interstellar comets like 3I/ATLAS and 'Oumuamua and even to some extent Borisov to be different-different?

Two popular quantum computing algorithms for problems in chemistry may have very limited use even as quantum hardware improves

The Free Press and CBS News (Bari Weiss is involved in both organizations) is hosting an ongoing series of “town hall” interviews and debates, the topic being “Things that matter.” The series is sponsored by the Bank of America.

A few weeks ago the series included a episode of interest to many of us, a debate between Steven Pinker and Ross Douthat on “Do we need God.” These gentlemen should need no introduction, save to add that this debate probably arose because of Douthat’s new book, Believe: Why Everyone Should be Religious, a book that he promoted widely (see some of my takes on it here). The video of that debate went online yesterday.

Here’s part of the website’s intro to the debate:

Today, nearly a third of Americans claim no religious affiliation, which would have been unimaginable a generation ago.

But the story of religion in the West is much more complicated than simple decline. In the past few years, we’ve entered what feels like a religious revival, or at least a leveling off in the decline of faith. Even as our society becomes more technologically advanced, many people are searching more intensely for meaning, purpose, and moral clarity. In other words, the question of faith hasn’t disappeared. If anything, it is even more urgent.

For years, intellectuals predicted that as religion receded, society would become calmer, more rational, and more scientific. Shed religious superstition, the theory went, and we would inherit a more enlightened public life. Instead, many societies haven’t become less fervent so much as differently fervent—driven by conspiracy, tribalism, and forms of moral conflict that often feel almost cosmic in intensity.

The premise of our Things That Matter debates, sponsored by Bank of America, is simple but essential. We want to revive the tradition that has long made the United States exceptional: our ability to argue openly across deep divides while still remaining part of the same civic community. Disagreement does not have to mean contempt. And since religion is one of the most politically charged topics in public life, it felt fitting to begin here.

Where does morality come from without God? Are our ideas of human dignity, moral obligation, and human rights ultimately grounded in a transcendent reality—or are they products of human reason alone? Are the apparent benefits of religion simply the community and rituals it nurtures, rather than the truth of its claims?

To explore these questions, we brought together two formidable public intellectuals: cognitive psychologist Steven Pinker, author of Enlightenment Now: The Case for Reason, Science, Humanism, and Progress, and New York Times columnist Ross Douthat, author of Bad Religion: How We Became a Nation of Heretics.

You can hear the 57-minute debate by clicking below (I hope). It’s moderated by lawyer and commentator Sarah Isgur, who seems to be a secular Jew. It begins with summaries by Douthat and Pinker (about 4 minutes each), and then Isgur asks questions to Pinker and Douthat, questions that were clearly given to the debaters in advance (they have notes to answer them).

My take: Pinker wiped the floor with Douthat. Of course I’m biased, but Douthat’s arguments were lame, and he didn’t even dwell on the “science-y” arguments he made when touting his book (fine-tuning, consciousness, etc.). (Steve could have rebutted those, too.) Instead, Douthat says that “God self-evidently exists” and doesn’t rebut Pinker’s arguments showing the well-known negative correlation between religiosity of countries (or American states) and their well being. Douthat also makes quasi intelligent-design arguments, one of which is that our minds were created by God to help us understand the universe. I guess he doesn’t understand evolution.

Audience questions, chosen in advance, begin about 19 minutes in (the debaters apparently knew the selected audience questions, too). They’re interspersed with more questions from the moderator.  The best of her questions is at the end (55:15): “What is something that each of you would concede tonight—a point that the other made that you found compelling—that made you perhaps question some of your own positions on this?”

I would have preferred more of a slugfest, one in which Pinker and Douthat addressed each other, as they often do in Presidential debates (there’s a bit of that). This is all polite and respectful, but that detracts from what I like to see in a debate. But that’s due to the organizers, not the participants. And, sadly, there are no before-and-after votes. In my view, humanism won hands down over religion.

Fentanyl-related overdose deaths fell by nearly 30 per cent in the space of a year in the US, which could represent a significant turning point in the country's opioid addiction crisis

MIT physicists have observed the first clear evidence that quarks create a wake as they speed through quark-gluon plasma, confirming the plasma behaves like a liquid.

We’re starting to see just how exceptional our own solar system and its history is, as more exoplanets are discovered. A fourth exoplanet discovery in the LHS 1903 system made by ESA’s CHEOPS mission places a rocky world right where it shouldn’t be. This ‘inside-out system’ could challenge our current understanding of planetary formation.

Three years ago, a detector sitting on the floor of the Mediterranean Sea recorded a single subatomic particle carrying more energy than anything of its kind ever seen before. Where it came from has been a mystery ever since. Now, scientists working with the KM3NeT detector off the coast of Sicily think they may have found the culprit, a population of blazars, some of the most violent objects in the universe, each one powered by a supermassive black hole firing a jet of plasma directly toward Earth.

For 45 years, astronomers believed that stars like our Sun would eventually flip their rotation pattern as they aged with the poles speeding up and the equator slowing down. It was one of those theoretical predictions that seemed rock solid, written into textbooks and built into stellar models. Now, researchers at Nagoya University in Japan have run the most powerful simulations of stellar interiors ever attempted, and the theory has collapsed. Stars like the Sun, it turns out, seem to keep the same rotation pattern for their entire lives.