Retainer sacrifice, the practice of killing servants or followers to accompany a ruler in death, has long fascinated historians. Here is what the forensic and archaeological evidence actually shows.
Scientists are uncovering compelling evidence that the gut microbiome communicates directly with the brain, influencing cognition, mood, and aging in ways that could transform neuroscience and medicine. Here is what the research actually shows, and why experts say this is only the beginning.
The Hubble tension is a deepening conflict in physics: two precise methods of measuring the universe's expansion rate give answers that simply do not agree. Here is what scientists know, what they suspect, and why the stakes could not be higher.
Every day, tons of interplanetary dust rain down on planets across our solar system. Scientists are uncovering the surprisingly complex journey these tiny particles take before becoming part of a planet's atmosphere.
Blood sugar variability, not just fasting glucose or A1C, may be one of the most telling indicators of metabolic health. Here is what the science says about why the peaks and valleys matter as much as the average.
Electrochemical carbon capture uses electricity-driven chemical reactions to pull CO2 directly from the air or industrial exhaust, offering a potentially cheaper and more efficient alternative to conventional methods. Here is what the science actually says, and why researchers and investors are paying close attention.
Reaching orbit requires far more than altitude. Learn the physics, speed requirements, and engineering feats that make orbital spaceflight one of humanity's greatest challenges.
From nonstick pans to plastic toys, everyday household items expose children to a cocktail of toxic chemicals. Here is what the science says about PFAS, phthalates, and heavy metals, and how parents can reduce their family's risk.
Scientists have extended the lifespan of worms and mice by large percentages, but translating those findings to humans is far more complicated than headlines suggest. Here is what the science actually shows.
Endangered species recovery programs require far more than legal protection and good intentions. This deep-dive examines the science, funding, politics, and hard-won lessons behind wildlife conservation's greatest successes and most painful failures.
Black holes are classified by mass into distinct categories, but recent discoveries keep pushing the boundaries of what astronomers thought was possible. Here is what we know about how these cosmic objects are defined and why they continue to surprise us.
Stopping Ozempic and other GLP-1 drugs triggers a cascade of biological changes, from rapid weight regain to shifts in cardiovascular risk. Here is what the science actually says about life after semaglutide.
Scientists are uncovering alarming evidence that long COVID triggers lasting neurological damage, from brain shrinkage to chronic inflammation. Here is what the latest research reveals about why millions of people cannot think clearly, years after their infection.
A century after Einstein published his theory of general relativity, scientists are deploying atomic clocks, gravitational wave detectors, and telescopes the size of Earth itself to probe its limits, and the theory keeps passing every test. Here's how the scientific method actually works when the stakes are cosmic.
Senescent cells, sometimes called "zombie cells," stop dividing but refuse to die, and scientists increasingly believe that understanding them could revolutionize how we treat aging, injury, and disease. Here's what the research tells us so far.
New ancient DNA evidence reveals that Yersinia pestis, the bacterium behind the Black Death, was infecting humans as far back as 5,000 years ago, and may have triggered some of history's most mysterious Bronze Age collapses. Discover how plague silently shaped the ancient world long before medieval Europe ever knew its name.
Coral reefs cover less than 1% of the ocean floor yet support roughly 25% of all marine species, and they're vanishing at an alarming rate. This deep-dive explores the science of coral death, the mechanics of bleaching, and the hard-won efforts to bring reefs back from the brink.
Prescription cascade occurs when a drug's side effects are mistaken for a new condition, triggering additional medications in a dangerous chain reaction. Learn how this hidden threat affects millions of patients, and what you can do about it.
Mounting scientific evidence reveals that exposure to artificial light at night disrupts circadian rhythms in ways that may elevate cardiovascular risk, and the danger may be hiding in plain sight in your bedroom. Here's what researchers are learning about light pollution, sleep, and heart health.
MRSA is a dangerous antibiotic-resistant bacteria that spreads through contact with infected surfaces and people. Learn what it is, how it travels, and what you can do to protect yourself. Understanding MRSA's risks is an essential part of modern public health awareness.
Once hunted to near-extinction across Europe and North America, beavers are staging a remarkable comeback, and scientists say their dam-building instincts could be the cheapest, most effective tool we have for restoring wetlands, fighting drought, and reversing ecological collapse. Here's the science behind rewilding's most surprising success story.
Antivenom is one of medicine's most remarkable inventions, but chronic shortages leave hundreds of thousands of snakebite victims without treatment every year. Here's how it works and why it's so hard to make.
New temperature records, accelerating feedback loops, and emerging climate science suggest our best models may be systematically underestimating how fast Earth is warming, with profound consequences for the timelines we use to plan our response. A deep-dive into what the data reveals.
Clinical trials reveal a surprising and nuanced picture of how the ketogenic diet affects liver health, offering potential treatment for fatty liver disease while raising new concerns about long-term metabolic consequences. Here's what the science actually shows.
Scientists have expanded DNA's four-letter alphabet with synthetic base pairs, creating eight-letter genetic systems that could revolutionize medicine, biotechnology, and our understanding of life itself. Here's what happens when biology gets a rewrite.
Ancient manuscripts made from animal skin are turning out to be unexpected biological archives, preserving the DNA of pathogens for centuries. Scientists are now mining these historical texts to trace the origins and evolution of deadly diseases.
Droughts are no longer confined to arid regions. They are increasingly devastating temperate climates like the UK's, driven by complex interactions between climate change, shifting jet streams, and aging water infrastructure. Here's what science knows, what it doesn't, and why the uncertainty itself is the crisis.
Spacewalks are among the most complex and dangerous activities in human spaceflight, requiring months of preparation, layers of redundant safety systems, and split-second decision-making 250 miles above Earth. Here's what it actually takes to step outside the International Space Station, and what can go terrifyingly wrong.
Despite decades of public recycling campaigns, less than 10% of all plastic ever produced has been recycled, a failure rooted in chemistry, economics, and, according to investigators, a fossil fuel industry that promoted the myth of a circular plastic economy. This deep-dive investigates how plastic recycling actually works, why it mostly doesn't, and what genuinely transformative solutions might look like.
Measles, a disease once declared eliminated in the United States, has staged a troubling resurgence fueled by vaccine hesitancy, misinformation, and gaps in global immunization coverage. Here's what scientists, epidemiologists, and public health officials say it will take to stop it.
As climate change reshapes precipitation patterns worldwide, meteorologists are discovering that the very models built to predict extreme rainfall are struggling to keep pace with a rapidly destabilizing atmosphere. Here's why forecasting floods has become harder, not easier, despite decades of technological progress.
Scientists studying hibernating animals have discovered that brains can shed and regrow synapses on demand, a finding that could revolutionize our understanding of brain plasticity, memory, and treatments for neurological disease. Here's what happens inside the brain of a sleeping bear, and why it might one day matter for yours.
The James Webb Space Telescope is detecting massive, fully-formed galaxies in the earliest epochs of the universe, challenging the standard model of cosmology and forcing scientists to confront whether our understanding of dark matter, galaxy formation, and the Big Bang itself needs a fundamental overhaul. Explore the discoveries upending decades of established science.
Scientists are uncovering how speaking multiple languages reshapes the brain from childhood through old age, building a cognitive reserve that may help delay the onset of dementia symptoms, though the evidence is debated. Here's what the research reveals about multilingualism and long-term brain health.
Scientists have uncovered the real mechanisms behind quality sleep, from circadian rhythms to body temperature. Here's what the research says actually works.