By the 1970s, mathematicians had figured out that embedded within the structure of Cayley graphs is information about the Fourier series from Chowla’s problem. A Cayley graph’s eigenvalues, it turns out, correspond exactly to different values that the cosine sum can have. The smallest eigenvalue therefore tells you how low the cosine sum can get.… Continue reading Networks Hold the Key to a Decades-Old Problem About Waves
China Could Play Spoiler in Venezuela’s Debt Restructuring
U.S. officials have framed Venezuela’s post-Maduro path as a three-step process: stabilization, recovery, then political transition, with early emphasis on restoring oil exports. But oil production alone cannot stabilize Venezuela. Decades of hyperinflation, collapsing public services, and the emigration of nearly 8 million people have left the country with acute macroeconomic and humanitarian challenges. Oil… Continue reading China Could Play Spoiler in Venezuela’s Debt Restructuring
Once Thought To Support Neurons, Astrocytes Turn Out To Be in Charge
The human brain is a vast network of billions of neurons. By exchanging signals to depress or excite each other, they generate patterns that ripple across the brain up to 1,000 times per second. For more than a century, that dizzyingly complex neuronal code was thought to be the sole arbiter of perception, thought, emotion,… Continue reading Once Thought To Support Neurons, Astrocytes Turn Out To Be in Charge
Ukraine Will Be the Business Opportunity of the Decade
President Donald Trump and his Ukrainian counterpart Volodymyr Zelensky met in Davos, Switzerland on Thursday to discuss an end to Russia’s war. No concrete plans were drawn up, but both leaders emerged optimistic about their progress. Attention should now turn to what peace might bring—not just for security, but for business. When the fighting stops,… Continue reading Ukraine Will Be the Business Opportunity of the Decade
Hitler’s Marriage (and More Weird Questions)
Podcast: Download MYS402: It’s a fifth Friday, so Jimmy Akin is answering weird questions from Catholic Answers listeners, about topics like Hitler’s marriage in the Fuhrerbunker; getting married on a desert island; what demons can posses; how salvation would work in a multiverse; and more. Get all new episodes automatically and for free: Follow by… Continue reading Hitler’s Marriage (and More Weird Questions)
Monster Neutrino Could Be a Messenger of Ancient Black Holes
Nearly three years ago, a particle from space slammed into the Mediterranean Sea and lit up the partially complete Cubic Kilometer Neutrino Telescope (KM3NET) detector off the coast of Sicily. The particle was a neutrino, a fundamental component of matter commonly known for its ability to slip through other matter unnoticed. The IceCube observatory in… Continue reading Monster Neutrino Could Be a Messenger of Ancient Black Holes
Harsh Flu Season May Be Driven by New Variant K
December 22, 2025 3 min read Add Us On GoogleAdd SciAm Harsh Flu Season May Be Driven by New Variant K A novel influenza variant called subclade K appears to be driving an uptick in cases and hospitalizations throughout the U.S. and other countries By Tanya Lewis edited by Claire Cameron Deb Cohn-Orbach/UCG/Universal Images Group… Continue reading Harsh Flu Season May Be Driven by New Variant K
The Arctic Is in Dire Straits, 20 Years of Reporting Show
December 16, 2025 3 min read Add Us On GoogleAdd SciAm The Arctic Is in Dire Straits, 20 Years of Reporting Show The Arctic has changed dramatically in the past 20 years, a new report shows, as temperatures skyrocket and ice rapidly melts By Andrea Thompson edited by Claire Cameron A polar bear (Ursus maritimus)… Continue reading The Arctic Is in Dire Straits, 20 Years of Reporting Show
Make the Americas Great Again: Colombia Embraces Trump & the U.S.
The U.S. military action to arrest Nicolás Maduro on January 3, 2026, has emerged as a defining event in Latin American politics. Conducted in its immediate aftermath—January 8–14, 2026—the latest TIPP Insights national survey in Colombia (n=2,051, margin of error ±2.7%) captures the public’s resounding response and reveals how this development is accelerating the advance… Continue reading Make the Americas Great Again: Colombia Embraces Trump & the U.S.
Ghost Pets! (Animal After Death Communications, ADCs)
Podcast: Download MYS401: Do pets reach back after death? Jimmy Akin and Dom Bettinelli assess new scientific studies on animal after-death communications. Can warning apparitions, shared sightings, and sensory details offer evidence for animal life after death? Get all new episodes automatically and for free: Follow by Email | Watch this episode and subscribe on… Continue reading Ghost Pets! (Animal After Death Communications, ADCs)