Tiny, tooth-sized fossils have just reshaped the story of our deepest ancestry. Paleontologists have discovered the southernmost remains ever found of Purgatorius—the earliest-known relative of all primates, including humans—in Colorado’s Denver Basin. Previously thought to be confined to Montana and parts of Canada, this shrew-sized, tree-dwelling mammal now appears to have spread southward soon after the asteroid impact that wiped out the dinosaurs.

Surviving cancer at a young age may come with an unexpected cost: faster aging at both the cellular and brain levels. Researchers found that survivors often show signs of being biologically older than their actual age, with chemotherapy accelerating the process most dramatically. This accelerated aging is linked to struggles with memory and focus, which can ripple into education and career outcomes. Encouragingly, scientists believe healthy habits like exercise may help turn back the clock.

Even in the ultra-dry Atacama Desert, tiny soil-dwelling nematodes are thriving in surprising diversity. Scientists found that biodiversity increases with moisture and altitude shapes which species survive. In the most extreme zones, many nematodes reproduce asexually — a possible survival advantage. The discovery suggests that life in arid regions may be far richer, and more fragile, than once believed.

Researchers are developing a two-part therapy for type 1 diabetes: lab-made insulin-producing cells paired with custom-engineered immune cells that protect them. The goal is to stop the immune system from destroying transplanted cells — without using immunosuppressive drugs. Backed by $1 million in funding, the team hopes to create a ready-to-use treatment that could work even for people who have had diabetes for years. The approach could transform how the disease is treated.

K’gari’s iconic lakes have existed for tens of thousands of years—but they haven’t always been full. New research shows that about 7,500 years ago, during a time of high rainfall, several of the island’s deepest lakes mysteriously vanished. Scientists believe changing wind patterns may have redirected rain away from the island. As the climate shifts again, the lakes’ long-term survival is no longer guaranteed.

As millions turn to ChatGPT and other AI chatbots for therapy-style advice, new research from Brown University raises a serious red flag: even when instructed to act like trained therapists, these systems routinely break core ethical standards of mental health care. In side-by-side evaluations with peer counselors and licensed psychologists, researchers uncovered 15 distinct ethical risks — from mishandling crisis situations and reinforcing harmful beliefs to showing biased responses and offering “deceptive empathy” that mimics care without real understanding.

A tiny wireless implant is giving new hope to people blinded by advanced age-related macular degeneration. In a major international clinical trial, more than 80% of participants regained meaningful central vision, with many able to read letters and even words again after years of decline. The device replaces damaged light-sensing cells in the retina with a 2×2 mm implant that converts light into electrical signals, restoring communication between the eye and the brain.

Why do we tip—even when we know we’ll never see the server again? New research suggests it’s not just about rewarding good service, but about social pressure. Some people tip out of genuine appreciation, while others simply follow the norm. But here’s the twist: those who truly value great service tend to tip more than average, and everyone else adjusts upward to match them.

On February 9, 2026, Japan restarted Unit 6 of its largest nuclear power plant, the Kashiwazaki-Kariwa Nuclear Power Station in Niigata Prefecture, which was shut down following the 2011 Fukushima tsunami and nuclear accident. As the reactor returns to full operations, the resulting increase in nuclear generation is likely to displace generation from fossil sources, mainly natural gas, which accounted for 33% of all Japan's electricity generation in 2024.

Polyamines—natural molecules found in every living cell—have become stars in the longevity world for their ability to boost cellular cleanup and support healthy aging. But there’s a dark twist: high levels of these same molecules are consistently seen in cancer, where tumors grow aggressively.

Twisting atomically thin magnetic layers does more than reshape their electronics—it can create giant, topological magnetic textures. In chromium triiodide, researchers observed skyrmion-like patterns stretching far beyond the expected moiré scale, reaching hundreds of nanometers. Even more surprising, their size doesn’t simply follow the twist pattern but peaks at a specific angle. This twist-controlled magnetism could pave the way for low-power spintronic devices built from geometry alone.

Icy moons circling the outer planets may be far more dynamic—and explosive—than they appear. New research suggests that when heat from tidal forces melts their ice shells from below, the sudden drop in pressure could cause hidden oceans to boil beneath the surface. On smaller moons like Enceladus, Mimas, and Miranda, this process may help explain strange features such as Enceladus’ tiger stripes and Miranda’s towering cliffs.

NYU researchers have found a way to use light to control how microscopic particles assemble into crystals, effectively turning illumination into a tool for shaping matter. By adding light-sensitive molecules to a liquid filled with tiny particles, they can adjust how strongly the particles attract or repel one another simply by changing the light’s intensity or pattern. This allows them to trigger crystals to form, dissolve, or even be reshaped in real time.

Scientists have uncovered a powerful genetic switch that helps some of the body’s most important immune cells grow up properly and keep our organs healthy. The switch, called MafB, guides immature precursor cells as they develop into macrophages, the body’s clean-up and repair crew that removes pathogens, clears debris, recycles iron, and supports tissue function. When MafB is missing, these cells remain stuck in an underdeveloped state and cannot fully carry out their protective roles.

Inverted perovskite solar cells offer strong potential for scalable, low-cost solar power, but a hidden interface inside the device has limited their performance and durability. Researchers have now introduced crystal-solvate nanoseeds that guide crystal growth and release solvent in a controlled way during heating, improving film quality at this buried layer. The result is smoother, denser material with better electronic properties and stability. A large mini-module achieved 23.15% efficiency with minimal scaling losses.

For the first time ever, scientists have uncovered a vast field of tektites in Brazil — mysterious glassy fragments forged when a powerful extraterrestrial object slammed into Earth about 6.3 million years ago. Named “geraisites” after Minas Gerais, where they were first found, these dark, aerodynamic droplets of natural glass stretch across more than 900 kilometers and may mark one of South America’s most significant ancient impact events.

Scientists in Brazil have transformed cocoa waste into a functional chocolate-infused honey packed with antioxidants and natural stimulants. Using ultrasound waves, they enhanced honey’s ability to pull beneficial compounds from cocoa shells—no synthetic solvents required. The process is considered green and sustainable, and the product could find its way into gourmet foods and cosmetics.

Scientists at Rice University have produced the first full, dye-free molecular atlas of an Alzheimer’s brain. By combining laser-based imaging with machine learning, they uncovered chemical changes that spread unevenly across the brain and extend beyond amyloid plaques. Key memory regions showed major shifts in cholesterol and energy-related molecules. The findings hint that Alzheimer’s is a whole-brain metabolic disruption—not just a protein problem.

That photogenic cup of bubble tea may come with hidden downsides. Tapioca pearls made from cassava can absorb heavy metals like lead, and in large amounts they may slow digestion or even cause blockages. The drink is often loaded with sugar—sometimes more than soda—raising risks for cavities, obesity, diabetes, and fatty liver disease. There are even reports linking frequent consumption to kidney stones and poorer mental health.

Scientists at Oregon State University have engineered a powerful new nanomaterial that zeroes in on cancer cells and destroys them from the inside out. Designed to exploit cancer’s unique chemistry—its acidity and high hydrogen peroxide levels—the tiny iron-based structure sparks not one but two intense chemical reactions, flooding tumors with cell-damaging oxygen molecules. This dual attack overwhelms cancer cells with oxidative stress while sparing healthy tissue.