Before a cell can divide, it has to precisely duplicate its entire genetic information. However, the DNA in the cell exists as part of a DNA-protein complex known as chromatin. For this purpose, the DNA is wrapped around a core of histone proteins and tightly packed into
A fresh look at your nightly brainwashing The post How Sleep Cleans the Brain appeared first on Nautilus .
Astronomers have discovered that a giant planet, WASP-189b, echoes the composition of its host star, providing the first direct evidence of a foundational concept in astrobiology. This discovery was achieved through the first-ever simultaneous measurement of gaseous magnesium
About 70% of the species on Earth are insects. They are fundamental components of most ecosystems: they comprise half of the biomass on the planet, pollinate flowers, decompose dead organic matter and play multiple roles in food webs. They are quite literally everywhere,
With the arrival of spring a few weeks ago, new buds and colors on the trees started to appear. Along with that new growth, a UBC Okanagan researcher has determined that some trees in spring also provide simple, visual clues—raised or lowered branches—to indicate that they are
How can cancer cells be targeted without damaging healthy tissue? This is one of the major challenges facing oncology today. Using synthetic DNA strands, a team from the University of Geneva (UNIGE) has created a "smart" system that can recognize cancer cells with exceptional
An international team led by Monash University has uncovered evidence of a rare form of exploding star, helping to shed light on one of the most cataclysmic events in the universe. At the end of their lives, most massive stars collapse into black holes—objects with gravity so
Porous materials are widely used for gas storage, separation, catalysis, and environmental purification. Their functionality arises from nanoscale pores that allow molecules to be selectively captured or transported. However, most porous materials, such as metal-organic
Human–wildlife coexistence is often far from straightforward, with predators particularly hard hit: their numbers tend to fall sharply in areas close to human settlements, fields and pastureland. This is not, however, a simple case of inevitable decline, but a question of
Artemis II, NASA's first crewed mission to the moon in more than 50 years, represents a shift from short visits toward sustained exploration, where understanding lunar geology and resources becomes as important as the engineering that gets astronauts there. Artemis II is
Hidden features uncovered in X-ray signals are set to overturn a key scientific theory and fundamentally change how X-rays are interpreted across fields of physics, chemistry, biology and materials science, new research reveals. Researchers say the discovery can help scientists
Heart replicas helped doctors spot good targets for ablation in 10 patients. Months later, all of them are free of sustained faulty rhythms.
In most bumblebee species, the queens spend their winters buried underground in a tiny cavity the size of a grape. For six to nine months, they enter a deep sleep-like state called diapause, waiting for spring.
The way a key cellular motor works at an atomic level has been uncovered by simulations conducted by RIKEN biophysicists. This finding, published in the journal Proceedings of the National Academy of Sciences, provides important insights into how mechanical force is generated
Emissions of two major pollutants have steadily decreased on Salt Lake City roads over the past two decades, while levels of carbon dioxide emissions, a related gas blamed for climate change, remained steady, according to a new study by University of Utah atmospheric scientists
Superconductivity—the ability of a material to conduct electricity without any energy loss to heat—enables highly efficient, ultra-fast electronics essential for advanced technologies such as magnetic resonance imaging (MRI) machines, particle accelerators and, potentially,
In a new book, University of Mississippi sociologist Amy McDowell says small talk can be used as a tool to block meaningful conversation in the evangelical church, leaving some people feeling isolated in their beliefs that conflict with Christian nationalism.
AI language models, used to generate human-like text to power chatbots and create content, are also revolutionizing biology by treating complex biological data like a language. Language models are increasingly used, for example, to find patterns in DNA and proteins, to make
In animal societies as in human ones, some individuals regularly produce resources while others appropriate them. Contrary to what evolutionary theories had previously suggested, these social roles do not depend solely on innate individual predispositions. A study in mice
Earth's "gold kitchen" lies deep beneath the seafloor. Island arcs, whose volcanoes form above subduction zones where one oceanic plate sinks beneath another, are often particularly rich in gold. The reasons for this have long been debated.
The direction in which the electromagnetic field of circularly polarized light rotates can be easily reversed by applying a voltage, RIKEN researchers have demonstrated. This could enable a new generation of optical devices based on circularly polarized light. The work is
As artificial intelligence and data-driven analytics rapidly transform online retail, a surprising dynamic is emerging: some e-commerce platforms deliberately allow third-party analytics tools to scrape or access marketplace data, even though doing so could weaken the
Why do some species live for only weeks while others survive for centuries? Researchers at the Leibniz Institute on Aging—Fritz Lipmann Institute (FLI) in Jena have developed AEGIS, a freely available software tool that enables scientists to simulate evolution on a standard
It seems as though they can at least track the number of events in their environment The post Can Plants Count? appeared first on Nautilus .
More inclusive secondary schools see fewer students dropping out of education and becoming "not in education, employment or training" (NEET), according to new research from Leeds academics. Schools that are considered more inclusive because they use fewer suspensions, support
Accents are usually thought of as a human trait, indicating where a person has grown up or the communities they belong—and new research shows the same dialects can also occur in Australia's largest carnivorous bat.
Only 25% of newly-delineated priority areas identified for the protection of freshwater fishes in Colombia overlap with existing protected areas, according to a recent study published in Diversity and Distributions by the Leibniz Institute of Freshwater Ecology and Inland
The Mediterranean Sea is undergoing rapid ecological transformations driven by climate change and human-mediated species introductions. Among the most striking processes is the increasing arrival and establishment of non-indigenous species entering through the Suez Canal, a
Cholera-causing bacteria are locked in an evolutionary arms race with a viral nemesis, according to a new genomic study. Researchers have found that, in the Ganges Delta, cholera bacteria rapidly gain and lose special armor that protects against attacks from the virus, known as
Elon Musk's SpaceX has filed papers with US regulators that set the stage for what could be the largest-ever public stock offering, a source familiar with the matter told AFP on Wednesday.
In 2024, NASA's Perseverance rover found surprising levels of Nickel in the Martian bedrock of an ancient river channel, called Neretva Vallis, which flowed into the Jezero crater. A new study, published in Nature Communications, has taken a closer look at the data collected
In dryland ecosystems, increased environmental stress often triggers a change from a uniform vegetation cover to patchy vegetation patterns. Some theoretical studies suggest that this spatial self-organization of vegetation helps ecosystems delay and avoid desertification.
A new study from The University of New Mexico offers a nationwide look at how Americans discuss one of the most enduring forms of housing discrimination—redlining—using more than a decade of social media data. The study is published in the journal Computational Urban Science.
A new synthetic molecule switches between emitting green and blue light after application of a solvent or mild heat. The color-changing phosphor can be leveraged for a two-layered information encoding platform, according to a study led by University of Michigan Engineering and
Genetically engineering tobacco plants could enable a more sustainable production method for psychedelic drugs, which are increasingly in demand for research and medical uses
Researchers from the University of Maine, in partnership with the Maine Department of Marine Resources (DMR), are analyzing more than 20 years of fishery survey data from the Gulf of Maine to examine how environmental change is reshaping marine ecosystems. The work aims to
HR and people managers should proceed with caution if they want to use AI to improve efficiency and human capital in the workplace, and should take steps to ensure creativity and critical thinking are preserved, new research from the University of Bath School of Management shows.
An interview with Berkeley researcher and author Nina Begus about her new book and proposal to fuse science and the humanities The post Making AI More Human appeared first on Nautilus .
Many insects have lived in close symbiosis with bacteria for millions of years, during which time the bacteria have provided them with vital nutrients, making the mutualistic relationship so close that neither partner can survive without the other. However, the mechanisms and
Knowing how your eye optimizes vision could have big implications for the progression of nearsightedness
Superb fairy-wrens are facing "imminent danger," and a well-studied population in Canberra could go extinct in the next 30 years if we don't urgently curb greenhouse gas emissions, according to an international team of scientists including researchers from The Australian
Experiments conducted in Brazil using laboratory rats have shown that graphene-based structures can act as a powerful ally in bone regeneration. These structures are made of sheets of the chemical element carbon that are just one atom thick. They can help heal fractures or bone
Quantum computers of the future may be closer to reality thanks to new research from Caltech and Oratomic, a Caltech-linked start-up company. Theorists and experimentalists teamed up to develop a new approach for reducing the errors that riddle today's rudimentary quantum
The history of science and technology is marked by major breakthroughs—the theory of evolution, the splitting of the atom, the development of antibiotics—and a research team including faculty at Binghamton University, State University of New York, has developed a method to help
Commonly used self-report measures of romantic relationships may capture people's overall appraisal of their relationship more than measuring distinct relationship facets such as communication, conflict and affection, according to a new study published in PLOS One by James Kim
A Los Angeles jury found Instagram and YouTube negligent in how they were built, opening a new legal fight over how courts view social media
An astronomer at the University of Hawaiʻi at Hilo is using data from the Canada–France–Hawaiʻi Telescope (CFHT) on Maunakea to help reconstruct a slow-motion cosmic collision, one that has been unfolding for hundreds of millions of years. A new study from principal
Diverse soil microbial communities may help suppress pathogens naturally, acting as a biological barrier against their establishment and spread, according to a new study. Professor Brajesh Singh, from The University of Western Australia's School of Agriculture and Environment
Researchers have uncovered new evidence that short-lived spikes in ocean phosphorus may have played a major role in two of the most severe marine extinctions in Earth's history. Dr. Matthew Dodd from The University of Western Australia's School of Earth and Oceans is lead
And the trade-offs inherent to every twitch The post Why Seals Twitch Their Whiskers appeared first on Nautilus .
