Top Science News

July 2, 2025

Top Headlines

Why Do Killer Whales Keep Handing Us Fish? Scientists Unpack the Mystery

July 2, 2025 — Wild orcas across four continents have repeatedly floated fish and other prey to astonished swimmers and boaters, hinting that the ocean’s top predator likes to make friends. Researchers cataloged 34 such gifts over 20 years, noting the whales ...

The Pandemic Pet Boom Was Real. The Happiness Boost Wasn’t

July 2, 2025 — Locked-down Hungarians who gained or lost pets saw almost no lasting shift in mood or loneliness, and new dog owners actually felt less calm and satisfied over time—hinting that the storied “pet effect” may be more myth than mental-health ...

How Female Friendships Help Chimp Babies Survive

July 2, 2025 — Female chimpanzees that forge strong, grooming-rich friendships with other females dramatically boost their infants’ odds of making it past the perilous first year—no kin required. Three decades of Gombe observations show that well-integrated ...

Banned in Europe, Sprayed in America: The Fungicide Threatening Our Pollinators

July 2, 2025 — Macquarie University researchers reveal that chlorothalonil, still commonly sprayed on American and Australian produce, cripples insect fertility by more than a third at residue levels typically ...

Tiny Gut “sponge” Bacteria Found to Flush out Toxic PFAS “forever Chemicals”

July 2, 2025 — Cambridge scientists have spotted gut bacteria that greedily soak up PFAS “forever chemicals,” then ferry them safely out of the body in animal tests, removing up to three-quarters of the toxins ...

Researchers Tested 200 Toddlers — 96 Chemicals Were Lurking in Their Bodies

July 2, 2025 — Researchers testing urine from 2- to 4-year-olds in four U.S. states uncovered 96 different chemicals, many of them unmonitored and linked to hormone and brain disruption. Legacy toxins like ...

Ultrafast 12-Minute MRI Maps Brain Chemistry to Spot Disease Before Symptoms

July 2, 2025 — Illinois engineers fused ultrafast imaging with smart algorithms to peek at living brain chemistry, turning routine MRIs into metabolic microscopes. The system distinguishes healthy regions, grades ...

Is Cheese Secretly Fueling Your Nightmares? Science Weighs in

July 1, 2025 — Over a thousand students revealed a striking link between lactose intolerance and nightmare-filled nights, hinting that midnight stomach turmoil from dairy can invade dreams. Researchers suggest simple diet tweaks—especially ditching late-night ...

Synthetic Storm: What’s Really in Your Teen’s Vape — and Why Scientists Are Alarmed

July 1, 2025 — Teen vaping is changing fast — and not in a good way. A large national study found that more adolescents are vaping THC, CBD, and especially synthetic cannabinoids, which are often unregulated and ...

Is That Really ADHD? Why Flawed Trials May Be Misleading Millions

July 1, 2025 — Researchers reviewing nearly 300 top-tier ADHD drug trials found that half skipped the rigorous, expert-led evaluations needed to rule out other conditions like depression or schizophrenia. With diagnoses often made by unqualified staff—or even by ...

Are Lefties Really More Creative? 100 Years of Data Say No

July 1, 2025 — A sweeping review of more than a century’s research upends the popular notion that left-handers are naturally more creative. Cornell psychologist Daniel Casasanto’s team sifted nearly a thousand studies, ultimately finding no consistent ...

Citizen Scientists Spot Rare Exploding Star in Real-Time

July 1, 2025 — Citizen scientists using the Kilonova Seekers platform spotted a stellar flash 2,500 times brighter than before, allowing astronomers to identify the exploding cataclysmic variable GOTO0650 within hours. Swift community follow-up captured X-ray, UV, ...

Latest Headlines

updated 7:41am EDT

Scientists Just Mapped How the Body Rejects Pig Organs—and How to Stop It

July 1, 2025 — Scientists have achieved an unprecedented look into how the human immune system attacks a transplanted pig kidney, using spatial molecular imaging to map immune activity down to the cellular level. ...

Scientists Just Found a Sugar Switch That Protects Your Brain from Alzheimer's

June 30, 2025 — Scientists have uncovered a surprising sugar-related mechanism inside brain cells that could transform how we fight Alzheimer’s and other ...

Ancient DNA Reveals Leprosy Hit the Americas Long Before Colonization

June 30, 2025 — Leprosy’s tale stretches from 5,000-year-old skeletons in Eurasia to a startling 4,000-year-old case in Chile, revealing that the rare strain Mycobacterium lepromatosis haunted the Americas ...

JWST Unlocks 10-Billion-Year Mystery of How Galaxies Shape Themselves

June 30, 2025 — Using the James Webb Space Telescope, scientists spotted thin and thick disks in galaxies as far back as 10 billion years ago—something never seen before. These observations reveal that galaxies ...

Planets May Start Forming Before Stars Even Finish Growing

June 30, 2025 — In a stellar nursery 460 light-years away, astronomers sharpened old ALMA data and spotted crisp rings and spirals swirling around 27 infant stars—evidence that planets start taking shape just a ...

Fighting Fire With Fire: How Prescribed Burns Reduce Wildfire Damage and Pollution

June 30, 2025 — Wildfires are becoming more intense and dangerous, but a new Stanford-led study offers hope: prescribed burns—intentionally set, controlled ...

Buried for 23,000 Years: These Footprints Are Rewriting American History

June 29, 2025 — Footprints found in the ancient lakebeds of White Sands may prove that humans lived in North America 23,000 years ago — much earlier than previously believed. A new study using radiocarbon-dated ...

Scientists Just Reconstructed Half the Neanderthal Genome—thanks to Indian DNA

June 29, 2025 — India’s complex ancestry—intertwined with Iranian farmers, Steppe herders, and local hunter-gatherers—has now been decoded through genomic data ...

The Gene That Hijacks Fear: How PTEN Rewires the Brain’s Anxiety Circuit

June 29, 2025 — Deleting a gene called PTEN in certain brain cells disrupts the brain’s fear circuitry and triggers anxiety-like behavior in mice — key traits seen in autism. Researchers mapped how this genetic ...

This Brain Scan Sees Alzheimer’s Coming—but Only in Some Brains

June 29, 2025 — USC researchers have found a promising new brain scan marker that could better detect Alzheimer’s risk — but only for some. The tau-based benchmark works in Hispanic and White populations when ...

New Orleans Is Sinking—and So Are Its $15 Billion Flood Defenses

June 28, 2025 — Parts of New Orleans are sinking at alarming rates — including some of the very floodwalls built to protect it. A new satellite-based study finds that some areas are losing nearly two inches of ...

Scientists Reveal a Spontaneous Reaction That Could Have Started Life

June 29, 2025 — Scientists have uncovered a surprising new way that urea—an essential building block for life—could have formed on the early Earth. Instead of requiring high temperatures or complex catalysts, ...

Tiny Creatures, Massive Impact: How Zooplankton Store 65 Million Tonnes of Carbon Annually

June 27, 2025 — Zooplankton like copepods aren’t just fish food—they’re carbon-hauling powerhouses. By diving deep into the ocean each winter, they’re secretly stashing 65 million tonnes of carbon far below ...

Record-Breaking 10-Billion-Year Radio Halo Just Rewrote the Universe’s Origin Story

June 28, 2025 — A newly discovered radio halo, 10 billion light-years away, reveals that galaxy clusters in the early universe were already steeped in high-energy particles. The finding hints at ancient black hole ...

World’s Largest Camera Just Snapped the Universe in 3,200 Megapixels

June 27, 2025 — The LSST camera at the Vera C. Rubin Observatory has released its jaw-dropping first images, each capturing 45 times the area of the full moon in one shot. Over the next ten years, this cosmic giant ...

These 545-Million-Year-Old Fossil Trails Just Rewrote the Story of Evolution

June 27, 2025 — A groundbreaking study suggests that the famous Cambrian explosion—the dramatic burst of diverse animal life—might have actually started millions of years earlier than we thought. By analyzing ...

This Breakthrough Turns Old Tech Into Pure Gold — No Mercury, No Cyanide, Just Light and Salt

June 27, 2025 — At Flinders University, scientists have cracked a cleaner and greener way to extract gold—not just from ore, but also from our mounting piles of e-waste. By using a compound normally found in pool ...

Self-Lighting Chip Uses Quantum Tunneling to Spot a Trillionth of a Gram

June 27, 2025 — Imagine detecting a single trillionth of a gram of a molecule—like an amino acid—using just electricity and a chip smaller than your fingernail. That’s the power of a new quantum-enabled ...

One Shot, Game Changed: How RAVEN Captured a Petawatt Laser and Supercharged Fusion Research

June 27, 2025 — Scientists have developed a groundbreaking technique called RAVEN that can capture the full complexity of an ultra-intense laser pulse in a single shot—something previously thought nearly ...

Skull Study Shows Chicago's Rodents Are Rapidly Evolving

June 26, 2025 — Urban wildlife is evolving right under our noses — and scientists have the skulls to prove it. By examining over a century’s worth of chipmunk and vole specimens from Chicago, researchers ...

A Giant Pulse Beneath Africa Could Split the Continent — and Form an Ocean

June 27, 2025 — Beneath the Afar region in Ethiopia, scientists have discovered pulsing waves of molten rock rising from deep within the Earth — a geological heartbeat that could eventually split Africa in two. ...

This Team Tried to Cross 140 Miles of Treacherous Ocean Like Stone-Age Humans—and It Worked

June 26, 2025 — Experiments and simulations show Paleolithic paddlers could outwit the powerful Kuroshio Current by launching dugout canoes from northern Taiwan and steering southeast toward Okinawa. A modern crew ...

Farming Without Famine: Ancient Andean Innovation Rewrites Agricultural Origins

June 26, 2025 — Farming didn t emerge in the Andes due to crisis or scarcity it was a savvy and resilient evolution. Ancient diets remained stable for millennia, blending wild and domesticated foods while cultural ...

Why Cats Prefer Sleeping on Their Left Side—and How It Might Help Them Survive

June 26, 2025 — Cats overwhelmingly choose to sleep on their left side, a habit researchers say could be tied to survival. This sleep position activates the brain’s right hemisphere upon waking, perfect for ...

Can These Endangered Lizards Beat the Heat? Scientists Test Bold Relocation Plan

June 26, 2025 — South Australia’s tiny pygmy bluetongue skink is baking in a warming, drying homeland, so Flinders University scientists have tried a bold fix—move it. Three separate populations were shifted ...

New Test Unmasks Illegal Elephant Ivory Disguised as Mammoth

June 26, 2025 — Poachers are using a sneaky loophole to bypass the international ivory trade ban—by passing off illegal elephant ivory as legal mammoth ivory. Since the two types look deceptively similar, law ...

Scientists Reveal Your Morning Coffee Flips an Ancient Longevity Switch

June 25, 2025 — Caffeine appears to do more than perk you up—it activates AMPK, a key cellular fuel sensor that helps cells cope with stress and energy shortages. This could explain why coffee is linked to better ...

Mammals Didn't Walk Upright Until Late—here's What Fossils Reveal

June 25, 2025 — The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it was a messy saga full of unexpected detours. Using new bone-mapping ...

The Brain’s Sweet Spot: How Criticality Could Unlock Learning, Memory—and Prevent Alzheimer’s

June 25, 2025 — Our brains may work best when teetering on the edge of chaos. A new theory suggests that criticality a sweet spot between order and randomness is the secret to learning, memory, and adaptability. ...

Scientists Reprogram Ant Behavior Using Brain Molecules

June 25, 2025 — Leafcutter ants live in highly organized colonies where every ant has a job, and now researchers can flip those jobs like a switch. By manipulating just two neuropeptides, scientists can turn ...