The bacterial flagellum is a motility organelle that enables bacteria to swim and is composed of more than 30 different proteins. Researchers have long sought to understand how this complex nanomachine self-assembles from many parts in the correct order and at the correct
It's known that the Y chromosome, which confers male sex, plays a big role in development and health, despite its small size. As cells age they frequently lose their Y chromosomes, which is associated with conditions like cancer, Alzheimer's disease and heart disease.
Geologists have uncovered new evidence that dramatic sea-level changes carved giant underwater canyons in South Australia's Flinders Ranges hundreds of millions of years ago, helping to create conditions that preserved some of the earliest complex life on Earth. The findings,
Crop residues—the stems, leaves and husks left behind after harvesting cereals—could provide an important source of renewable energy for Europe, but research led by the University of Surrey suggests that removing too much from fields could come at a cost to biodiversity.
And makes recycling a breeze The post “Medium Roast, Cream, No Plastic”: New Coffee Cup Coating Protects Against Microplastics appeared first on Nautilus .
Growing two crops in succession on the same land requires a tight schedule. In parts of central and eastern China, farmers sow barley in autumn and harvest it in late spring. It is then followed by a summer crop, such as rice. For this cropping sequence to succeed, the barley
It's not easy to extract iron from its ore. But the peoples of the ancient city of Great Zimbabwe—the capital of a thriving kingdom in southern Africa between A.D. 1000 and 1700—were masters.
Research in mice shows that fiber may literally wrap around plastic particles to remove them from the gut.
The COP31 climate talks kicked off Monday with an early fight over money as the U.N.'s chief urged world leaders to "get serious" about tackling the crisis after a year of devastating weather extremes.
The brilliant magenta feathers on the head and throat of a male Anna's hummingbird present an optical puzzle. Magenta cannot be produced by a single wavelength of light. Instead, the feathers reflect a mixture of red and blue. Scientists understood the strong red reflection,
Want to make it out of the AI doom loop alive? Read these books The post Essential Reading in an Era of AI Doomsaying appeared first on Nautilus .
Cutting-edge medical imaging techniques have revealed that Jeremy Bentham, the Georgian philosopher and reformer, suffered from chronic toothache and a jaw riddled with arthritis.
When the U.S. Federal Reserve announces a change in its interest rate, consumers expect shifts in borrowing costs elsewhere and potential price adjustments for things like housing and some consumer goods. New research, however, shows that stock market analysts generally give a
Triggering a flow of the brain’s cleaning fluid could lead to better sleep—and may decrease harmful waste particles
Scientists have discovered that pantethine, a readily available vitamin B5 derivative, can calm overactive immune cells and may help fight psoriasis. The supplement prevented psoriasis in mice and showed promising results in a small human trial, revealing an unexpected
Typically, after a physical system is disturbed, it can gradually return toward a state of thermal equilibrium by exchanging heat with its surroundings. Thermal equilibrium is a state in which there is no net transfer of heat between the system and its surroundings.
Scientists have discovered that gut bacteria can feed on the protective mucus lining your intestines, producing potentially harmful compounds, but fiber helps keep this activity in check. Overlooked proteins in plant foods also help shift gut bacteria toward producing
Scientists have observed a bizarre quantum state of matter that combines the structure of a crystal with the frictionless flow of a liquid, all at room temperature. The breakthrough overturns a major practical limitation of exotic quantum experiments and could help bring
One story asks whether cats fart. The others are a lot less funny
After more than 35 years of research, scientists have uncovered surprising clues about what really drives Lyme disease risk. Contrary to longstanding assumptions, deer populations appear less important than mice, which can fuel a 40% increase in tick numbers the following year.
A surprising new study from UCLA suggests that a naturally occurring molecule could help breast cancer survivors overcome the frustrating brain fog and exhaustion that can linger long after treatment ends. Researchers found that women taking an oxaloacetate supplement for eight
For the first time, a robot has autonomously built part of a structure in space, demonstrating a breakthrough that could fundamentally change space exploration. The technology could one day allow scientists to construct enormous telescopes, communications antennas, and solar
University of Queensland researchers have shown tiny crystals are a window to activity inside volcanoes and could provide clues to when they might erupt.
On the outskirts of India's capital, a short motorbike ride through the urban area with the world's worst air pollution leaves salesman Kanwar Singh coated in toxic dust.
NASA has revealed an accelerated plan to land astronauts on the Moon in 2028, with SpaceX and Blue Origin developing competing lunar landers and a crucial orbital test scheduled for 2027. Faster rocket preparations, new lightweight spacesuits, and redesigned missions could help
A massive study of more than 120,000 older adults suggests that common osteoporosis drugs may reduce the risk of Alzheimer’s disease and other dementias by up to 24%. The surprising findings raise the possibility that medications already used to strengthen bones could also help
To understand how societies might react to climate change, archaeologists look at social responses to extreme climate events in the past—and in some places, that included measures as drastic as human sacrifice. Mass ritual sacrifices along the desert coast of northern Peru have
The Shroud of Turin, one of history's most mysterious religious artifacts, is yielding surprising new clues through DNA analysis. Scientists have uncovered a complex mixture of biological traces that may reveal more about the cloth's past and the environments it encountered.
Scientists have discovered that a buildup of a protein called Miro1 may be a hidden driver of insulin resistance in Type 2 diabetes, with preclinical experiments showing that removing it restores the muscles’ response to insulin. Exercise was also found to lower Miro1 levels in
To date, many of the methods used in clinical simulation have focused primarily on assessing technical skills and compliance with medical standards, often from a generic, interprofessional perspective. Although technical skills are essential, this approach overlooked key
Scientists have discovered that the stickiness of underwater “marine snow” plays a surprisingly important role in how much carbon reaches the deep ocean. Gooier particles resist bacterial breakdown and can transport more than six times as much carbon to the depths, revealing an
Researchers at the University of Tokyo have used a new type of radiocarbon analysis to study a sediment core taken from the Kumano Sea off the coast of Japan. This has revealed multiple "hidden" traces of previously unknown earthquakes in the Nankai Trough, where the country's
Researchers from Kyushu University have found that H3mm15, a histone H3.3 subvariant, contributes to normal sperm development in mice by helping regulate gene expression during spermatogenesis. The findings show that H3mm15 cannot be interchanged with conventional H3.3;
Researchers have discovered a stunning new species of tiny orange-patterned fish in the Brazilian Amazon, but its survival may already be at risk. Named Laimosemion laranja, the brilliantly colored killifish measures less than three centimeters long and was found in just three
Scientists at UC San Francisco have developed a powerful new cancer therapy that remains inactive until it reaches the brain, where it switches on to attack deadly tumors. The engineered immune cells, called B-SYNC CAR-T cells, completely eliminated diffuse midline glioma
A remarkable fossil discovery in Colombia is challenging how scientists understand major evolutionary changes in Earth's history. Researchers uncovered an incredibly diverse ancient marine ecosystem where giant reptiles, sharks, and other creatures thrived as older evolutionary
More than a century after Einstein revolutionized our understanding of gravity, scientists have uncovered a surprising new phenomenon hidden within his equations. Researchers at Columbia University and Universidad Adolfo Ibáñez have identified a theoretical process called
A research team led by professor Seong Sik Shin of the SKKU Advanced Institute of Nanotechnology (SAINT) at Sungkyunkwan University (SKKU), in international collaboration with the Korea Research Institute of Chemical Technology (KRICT), the University of California, San Diego,
Using the James Webb Space Telescope (JWST), a team of astronomers identified 104 magnified stellar events in a galaxy known as the Dragon, located around 6.5 billion light-years away. This discovery more than doubles the previous record of 44 such detections in the same
An aurora is one of nature's most spectacular light shows: It looks like green or red curtains rippling across the night sky. When viewed from the ground, this colorful display might seem far away and disconnected from anything happening on Earth's surface.
A huge coral colony stretching more than 1.5 kilometers (0.93 miles) along the outer reef of the Cocos (Keeling) Islands has been identified by researchers, making it one of the largest known coral colonies ever recorded.
In 2009, researchers working in the Liang Bua cave on Flores Island came across a leg bone. The 190,000–120,000-year-old fossil was identified as a bird bone and set aside. Like many bird bones before it, it was overlooked and left to collect dust.
