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Ride-hailing has become a routine part of urban life in the United States, but its broader economic impacts have been difficult to measure. As Uber and Lyft expanded across hundreds of cities over the past decade, they promised more flexible work for drivers and convenience for passengers. Questions remained, however, about how these promises translated into measurable changes in local economies.

Since 2016, an ordinary-looking F-type star called KIC 8462852, nicknamed Tabby's star, has behaved anything but ordinarily. In a new study published in the Monthly Notices of the Royal Astronomical Society on July 6, researchers revisited this star to find out what is really causing its irregular dimming.

More than 1,000 years ago, two babies were tucked away in an abandoned Roman toilet channel. Yet, despite what the location suggests, they were cherished, not discarded.

Researchers in the lab of Sam Peng, the Pfizer Inc.–Gerald Laubach Career Development Assistant Professor of Chemistry at MIT and a core institute member of the Broad Institute of MIT and Harvard, have developed a super-resolution imaging technology. It allows scientists to visualize molecular structures with angstrom-level localization precision—three orders of magnitude beyond the nanometer-scale limits of standard fluorescent dyes—while simplifying the imaging process.

A study published in the Journal of Statistical Mechanics: Theory and Experiment (JSTAT), inspired by the behavior of bacterial colonies observed in previous experiments, uses mathematical models to describe the expansion of competing populations. The aim is to understand which factors determine the success of one population over another.

New York University researchers have pinpointed the molecular players responsible for plants "feeling full" once they've taken up enough nitrogen—a finding that could help scientists develop plants that absorb more nitrogen from the soil and allow farmers to reduce environmentally and economically costly fertilizer applications.

Nitrogen gas is abundant in Earth's atmosphere, but most living organisms can't readily use it. Only a subset of microbes with enzymes known as nitrogenases can break nitrogen gas apart and convert it into ammonia.

The signals that cells use to switch genes on have remained almost unchanged across 2 billion years of evolution, but the ones used to switch genes off vary dramatically from one branch of life to another, according to a new study from the Center for Genomic Regulation (CRG) in Barcelona.

Along the three coasts of the contiguous United States, a silent race unfolds. Fueled by climate change, sea levels rise faster than at any time in recent geologic history. Meanwhile, coastal wetlands cling to a slim lead, lifted on newly accumulated sediments or moving inland as encroaching tides nip at their heels.

The left-right asymmetry of South African butterfly lilies (genus Wachendorfia) has been regarded as a classic evolutionary puzzle for more than a century. Due to the mirror-image arrangement of the floral parts, the plants achieve efficient cross-pollination. The molecular basis of this arrangement has now been uncovered by an international team led by the University of Potsdam.

Using the James Webb Space Telescope (JWST), astronomers obtained high-contrast coronagraphic images of the protoplanetary disk around the young, nearby star TW Hydrae. Results of the observational campaign, published July 27 on the preprint server arXiv, shed more light on the nature of this disk.

Approximately 40% of insect species worldwide are thought to be in decline and under threat of extinction. Among the key causes are habitat loss, pollution and climate change. Another threat is artificial light from sources like streetlights and security lamps. In new research published in the journal Biological Conservation, scientists say a simple change in artificial lighting could help reduce this particular threat.

The small mountain streams that feed many of the West's rivers may face a much drier future. A new study led by NAU researchers found that groundwater-fed streamflow, known as base flow, has been steadily declining across headwater watersheds in the western United States since 1950 and could decrease by 45% to 65% by the end of this century if current climate trends continue.

Freeman Hrabowski Scholar Bianca Jones Marlin studies how caregiving takes shape in the brain and how some biological adaptations are passed to the next generation.

Fertilization is often imagined as a frantic race, with millions of sperm competing for a single prize. But new research by a team of evolutionary biologists from Syracuse University, the University of Siena in Italy and the University of Szeged in Hungary reveals a more surprising reality, where success can depend less on competition and more on cooperation.

With no background in coding, Faith Maeba, a psychology major, was reluctant when her mother first suggested she enroll in classes on artificial intelligence.

South Korea registered its highest temperature since records began more than a century ago on Sunday, as authorities warned people to "immediately" stop all outdoor activities in affected areas.

New research is giving children a voice in understanding how technological interruptions affect parent-child relationships. A paper, "Distracted, Interrupted, or Disrupted: A Pathway Model of Technoference," led by Associate Professor Cara Swit from Te Whare Wānanga o Waitaha | University of Canterbury's (UC) School of Health Sciences, explores how technologies such as smartphones can interfere with parent-child interactions.

Australia had years to prepare for the arrival of bird flu. The deadly, highly transmissible H5N1 strain emerged in late 2020 in Asia before spreading to every other continent except Australia.

Most Americans favor nonviolent measures, such as temporary barricades, over violent measures, like the use of rubber bullets, by border enforcement officers toward undocumented migrants on the southern border, a UCL-led study published in the journal Migration Studies has found.

Ask someone if they'd rather take $5 today or $10 next week and they'll know which option is better.

A research team led by Taeyeon Kim, a professor in the Department of Chemistry at Sungkyunkwan University, in collaboration with a team from Yonsei University, has identified a new principle that controls charge separation, a phenomenon that plays a central role in both plants' generation of electrical energy (photosynthesis) and next-generation molecular semiconductor devices.

Speak into a phone and an app can render your words in another language in seconds. AI-powered speech translation can be fast, convenient and fluent. But fluency does not guarantee that people will understand one another.

Local knowledge, improved evacuation preparedness and resilient mobile phone-based communication channels can supplement early warning systems to reduce loss of life during glacial lake outburst floods.

More than 100 shallow lakes stretching over 1,000 kilometers (620 miles) along the Atlantic coast of southern Brazil and Uruguay could become one of the world's most important natural laboratories for understanding how climate change and human activities reshape freshwater ecosystems.

As we move closer to supporting a sustainable human presence on the moon, researchers are investigating how its soils can provide valuable resources and even grow food. An article in the Soil Science Society of America Journal proposes a classification framework to help scientists better understand lunar soils. This emerging science of "planetary pedology," the study and classification of soils beyond Earth, could help future missions select the best sites for construction, resource extraction a

As global temperatures continue to rise, scientists are racing to understand why heat so profoundly threatens fertility across the animal kingdom. A new study from the Hebrew University of Jerusalem and collaborators has uncovered a surprising answer: The brain itself may help decide whether reproductive cells can withstand environmental stress.

For male humpback whales, singing is serious business. Their haunting, complex songs can last for hours and travel for miles underwater, playing a central role in reproduction during the winter breeding season. But despite decades of research into what these songs sound like, scientists have had far less insight into what the whales are physically doing while they sing.

An international team of scientists has described seven new species of Madagascar's elusive diamond frogs (Rhombophryne), revealing that one of the island's most mysterious groups of amphibians is even more diverse than previously thought. The research is published in the journal Vertebrate Zoology.

Risso's dolphins around the British Isles are part of a single population—genetically distinct from those elsewhere in the Atlantic, new research shows. Scientists studied the DNA of dolphins that stranded in England, Scotland and Wales from 1992 to 2016.

Antimicrobial resistance (AMR) is defined as the ability of disease-causing microorganisms to withstand treatments like antibiotics.

How do students actually use AI learning assistants? A new research paper by IU International University of Applied Sciences provides the first robust answers to this question. For the study "Using AI-based Learning Assistants in Higher Education: A Large-Scale Descriptive Analysis," the research team led by Prof. Dr.-Ing. Kristina Schaaff, Dr. Valerie Hekkel and Quintus Stierstorfer analyzed anonymized usage data from approximately 77,000 IU online students who were using the Learning Companion

For the first time in more than a century, a total solar eclipse is coming to mainland Spain with an even longer encore next summer.

We have known for a while that the Milky Way is full of homeless worlds. Rogue planets, free-floating planets—call them what you like—but they are planets formed in orderly systems around ordinary stars and then thrown out, either by a gravitational shove from a sibling planet or by a star that strayed too close. What has been much less clear is what happens to any moons they were carrying at the time. Eviction is a violent business, and you would expect a moon to be the first thing lost.

An international study led by Curtin University has put to bed a scientific debate dating back 176 years, confirming that two historically significant oyster species from Western Australia and Fiji are distinct species.

In everyday life, the ability to read facial expressions plays a vital role in social communication, as it reveals a speaker's underlying emotions, intentions and psychological state. More importantly, accurately recognizing subtle signs of positive emotions can help build trust, enhance cooperation and strengthen relationships.

People might be more inclined to keep their community clean if they believe it benefits them personally, according to new research from the University of Georgia published in Environment and Behavior. The study found that focusing on how volunteering can benefit participants, such as by providing a new way to meet people or stay active, may encourage people to grab a trash bag and get to work.

Butterflies are charismatic, colorful and cherished around the world. One of the most diverse groups of insects, with more than 19,000 described species, they inspire international organizations such as the North American Butterfly Association and the Xerces Society, as well as countless websites devoted to their identification, monitoring and natural history.

There's something almost comic about the modern British summer ritual: As soon as the mercury climbs, we head to the nearest park, sit cross-legged on scorched grass and hunch over a flimsy foil tray to sear sausages over an open flame.

University of Wollongong (UOW) scientists have uncovered, for the first time, exactly how two of the cell's "helper" proteins operate as a rescue crew for misfolded proteins, a discovery that sheds new light on the molecular breakdown that underpins neurodegenerative diseases.

Pluto is on an icy march away from the sun. In 2114, it will turn back, but until then, its elliptical orbit will carry it to colder and darker parts of the outer solar system. This is Pluto's first time entering the outer solar system since its 1930 discovery, and along this journey, its atmosphere could slowly freeze out.

Since returning to power, President Donald Trump's administration has approved five pesticides considered by many to be PFAS "forever chemicals," a class of toxic substances facing bans and increasing restrictions around the world.

Most sensors are designed to do only one thing: detect what passes through them. But what if a sensor could do more? To create a new generation of technology, researchers have looked to living systems for inspiration. If a sensor could detect molecules, could it also remember previous interactions and selectively respond to them?

Using spectral data from the Dark Energy Spectroscopic Instrument (DESI), astronomers have gained some of the clearest evidence yet that white dwarf stars are accreting debris from disintegrating exoplanets. Captured while DESI was unable to study its primary targets: distant galaxies, the results provide unprecedented insights into the chemical makeup of rocky exoplanets, revealing compositions remarkably similar to the planets and asteroids of our own inner solar system.

"An island of biodiversity in a sea of monoculture": This is how a recent study characterized the Pimentel Barbosa Indigenous Territory (TIPB), located in the northeastern part of Mato Grosso state in Brazil's Central-West region. The study showed that the area's human occupation patterns and vegetation cover have remained largely unchanged for four decades. Meanwhile, the surrounding area has been altered by the expansion of livestock ranching, soybean farming and the construction of major high

As parasites become increasingly resistant to existing drugs, researchers at the University of California, Riverside, are working to develop a new generation of treatments for two serious infectious diseases: malaria and babesiosis.

Researchers at the Indian Institute of Technology Gandhinagar (IITGN) and the Regional Centre for Biotechnology, Faridabad, have developed and tested a new class of fluorescent probes that enable scientists to visualize xylem, the specialized tissue responsible for transporting water and minerals through plants. The work, published in Plant and Cell Physiology, introduces a faster, more specific and sensitive staining method than conventional dyes, creating avenues to strengthen research on plan

Biodiversity loss has been among the central topics in public, policy and scientific debate for several decades. While its accelerating pace and impacts are well recognized, translating the vast amounts of biodiversity data into reliable indicators that can inform policy remains a challenge, requiring considerable time and technical effort. To help address this, the EU project B-Cubed developed automated and interoperable data pipelines that were tested via case studies. The B-Cubed Legacy Bookl

A Pizza Hut in southwest Pennsylvania was recently highlighted for preserving its retro 1990s appearance, even as hundreds of other locations have closed across the United States.

Malaria parasites proliferate in an unusual way. Rather than dividing into two daughter cells like human cells, they first amplify their genetic material tenfold, hundredfold or even thousandfold before simultaneously producing a corresponding number of daughter parasites. Until now, the mechanisms controlling these processes were only partly understood.