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Astronomers using the James Webb Space Telescope have identified one of the most distant exploding stars ever confirmed. The supernova, SN 2023aeaf, was found at a redshift of 3.195

Astronomers may have finally solved the mystery behind a nearly two-decade-old cosmic explosion that seemed to break the rules of physics. The energy output of a powerful gamma-ray burst, GRB 061201, discovered in 2006, did not match well-established patterns seen in other similar explosions. Now, in a new study published in the Astrophysical Journal on Aug. 3, astronomers have revealed why.

History educators around the world have expressed concerns about declining history enrollments in schools and universities over the past few decades.

At least one person was killed and about 15 others were missing after a flash flood at the Grand Canyon, one of the most popular tourist sites in the United States, the National Park Service said in a statement Sunday.

Hurricane Karina formed Sunday in the Pacific Ocean and swiftly intensified into a dangerous major storm within hours, fueled by warm waters far offshore where it poses no immediate threat to land.

Humans have been observing the sky for thousands of years. Our ancestors were undoubtedly fascinated by it, but observing the heavens also had practical uses: It helped people measure time, both over the course of the day and through the changing seasons, and became especially important with the spread of agriculture. What is now seen as scientific frontiers, such as cosmology and astrophysics, are in fact only the latest chapter in an evolving history of observing and interpreting the sky.

For generations, wheat planting has followed predictable seasonal patterns. But this year, unseasonably warm weather in March and April accelerated wheat growth, pushing the crop into a vulnerable growth stage when widespread freezing temperatures hit.

When high or low tide occurs, the water does not necessarily rise and fall uniformly along the entire coastline. In fact, the height of the tide in a bay can vary by up to one meter (3 feet) from one location to another just a few kilometers away.

A new study suggests that El Ninos

The intestines rely on different strategies to rebuild themselves in response to diet changes versus infections, according to a new Cornell study

Tropical Storm Karina strengthened into a hurricane in the Pacific Ocean on Sunday and could become a major storm this week, forecasters said. The cyclone

Researchers from Tokyo Metropolitan University have created a new system to test magnetohydrodynamic aerobraking for spacecraft reentering the atmosphere. Their platform generates intense magnetic fields with a powerful electromagnet as a miniature vessel is hit with a shock wave traveling at over seven kilometers per second (4.3 miles per second). The magnets reached far higher fields than previous work with permanent magnets and are a crucial stepping stone toward tests with real vessels in th

Lucerne seed wasp (LSW) is a serious pest in alfalfa crops, causing damage that is difficult to see in the field. Its larvae feed inside developing seeds, meaning losses may not become apparent until harvest, cleaning or seed delivery, when it is too late to intervene. Each wasp represents a lost seed, with infested seeds removed by seed-cleaning facilities along with other impurities.

Slithering across the ceiling of an Australian rock shelter is a giant snake with a crocodile-like head, razor-sharp teeth and a long tongue. It

Some of the strangest weather in the solar system doesn

More water does not necessarily produce more alfalfa seed. A five-year trial near Keith, South Australia, found that strategically delaying irrigation until plants showed early signs of leaf drop generally increased seed yield and consistently delivered the highest gross margin.

Tuberculosis bacteria released into the air from infected individuals dry out to form infectious particles that are second only to measles in contagiousness. Weill Cornell Medicine investigators have discovered specific mechanisms that enable the bacteria not only to survive drying but also to generate mutations linked to antibiotic resistance. This suggests that transmission involves more than the passive movement of bacteria between people and may be a period during which the pathogen evolves.

The physical, cognitive and emotional loads of running a household should be recognized when examining the health of a couple

What kind of society would you rather live in: an equal one where everyone is just about getting by? Or an unequal one where most people are doing substantially better, but a small group consistently falls behind? Now imagine having to choose that society before you were even born, but with no idea where you

Welding plastic is a critically important part of everyday engineering

In 1899, scientists began tracking avian migration by placing a small ring with an identifier around birds

Single-use paper cups used for takeout coffee and other beverages release millions of microplastic particles when exposed to hot liquid, University of Queensland researchers have found.

Children in the postmedieval Dutch workforce worked so hard that their spines became worn and deformed, with some children affected before they even had a chance to lose their baby teeth, a new study published in the International Journal of Paleopathology finds.

There have been multiple high-profile alleged incidents of sexual violence against women and girls in news headlines this month. Some involve teenage boys.

Czech researchers at Charles University in Prague, led by Pavla Eli

As many cities developed, streams that once flowed on the surface were buried underground to make way for growing infrastructure. However, as heavier rainfall, extreme weather and aging infrastructure place growing pressure on cities, these buried streams could become part of the solution.

When an insecticide application fails to control bluegreen aphid, application conditions may not be the only cause. Research has identified resistant populations across southern Australia, confirming that repeated reliance on broad-spectrum insecticides is no longer sustainable.

Tina Nyfors, who recently defended her doctoral thesis at the University of Helsinki, studied sufficiency, a way of living and a principle for organizing society to stay within environmental limits while ensuring that people have enough. Nyfors directs attention to people whose carbon footprint is already in line with sufficiency and refers to them as the sufficiency class. Their way of life has a moderate climate impact yet still meets their needs.

It started with a simple message:

Subterranean clover

In 2020, Mexico joined 150 nations committing to protect 30% of its territory by 2030 as part of the global 30x30 initiative. More than halfway through the decade, there is ongoing debate about how to effectively expand protected areas to meet that ambitious goal.

Graphene is an exceptionally useful material for creating batteries, catalysts and electronic devices. Yet producing graphene typically requires temperatures as high as 900

Restaurants that go beyond simply allowing dogs on patios by offering dedicated menu items for them can significantly boost customer traffic, spending and word-of-mouth, according to new research from Toronto Metropolitan University.

Some of nature

Texas engineers teamed up with the world

Honey bees (Apis mellifera) are widely known as essential pollinators, but researchers using a

A research team led by Sungwon Lee, a professor in the Department of Physics and Chemistry at DGIST, developed a hierarchical nano-on-nano structure by directly growing graphene nanowalls (GNWs) on polymer nanofibers and successfully used the structure to enhance the sensing performance of wearable gas sensors. The technology is expected to be applied to next-generation wearable sensors for real-time monitoring of individuals

SpaceX has pulled off its biggest salvage operation yet, recovering its most recently launched Starship from the Indian Ocean.

Coral reef fish that are exposed to motorboat noise grow up smaller and less able to dodge predators, new research shows. Scientists played either boat noise or natural reef sounds to a species from the Great Barrier Reef called the spiny chromis, both as embryos and soon after hatching.

Fracking, the injection of high-pressure fluid to fracture rock and release oil or gas, can trigger earthquakes. While some sites generate small tremors beforehand that may provide an early warning, others produce few or none.

When Joro spiders first arrived stateside more than a decade ago, scientists worried the massive black-and-yellow spiders would gorge themselves on the same bugs as native spiders (or even the native spiders themselves). If the invasive arachnids did make massive meals of Georgia

Consumer sentiment dropped about 6% from last month, landing around 11% below a year ago amid continued worries that inflation will remain elevated for the foreseeable future, according to the University of Michigan Surveys of Consumers.

Generative AI tools such as ChatGPT make it easier for business owners to produce polished pitches, business plans and other communications, but according to new research from The University of Manchester and Canada

Germany risks missing an annual climate target in 2026 for the first time unless cuts to greenhouse gas emissions sharply accelerate, a think tank warned Friday.

Researchers at Delft University of Technology have demonstrated for the first time that nano-antennas can enhance the fluorescence of proteins in living human and other mammalian cells. Scientists already use smart fluorescent proteins that light up when the electrical voltage across a nerve cell changes. By placing nano-antennas close to these light-emitting proteins, researchers can monitor processes inside cells with much greater precision. The discovery adds a new tool for revealing electric

By combining two complementary clues

Imagine doctors could understand exactly which cells caused a patient

Indonesia has intensified efforts to fight wildfires with cloud seeding and water bombing as thousands of people nationwide battle to breathe through smoke and haze, officials said Friday.

Female humpback whales off the coast of Brazil now have their pick of mates, who slap the water with their tails and jostle for attention

Thirty-five years on