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In propulsion system design, engineers have long faced a trade-off between solid and liquid rocket fuels. Each has advantages and disadvantages, and in an effort to try to min/max the efficacy of different types of fuel, researchers have long placed an emphasis on a hybrid betwee
5,000-year-old skulls reveal a disturbing secret of ancient Egypt's first kings and more — today's student signal.
A 5,000-year-old mystery surrounding the tombs of Egypt’s first kings has taken a disturbing turn. Scientists reexamining 46 ancient skulls discovered evidence of potentially fatal head injuries in 18, suggesting that at least 39% of those studied may have been deliberately kille
Extra time on assignments. Frequent breaks. A quiet place to work. For students with attention-deficit/hyperactivity disorder (ADHD), these are some of the most common accommodations schools provide to make learning easier. But are they actually helping children succeed? A new st
A technology that significantly improves ethanol gas sensing performance by combining five different metal elements in a single oxide has been developed.
A study in the International Journal of Innovation and Sustainable Development of teachers' behavior during outdoor play at kindergarten has identified a gap between the support children need and the help educators provide, particularly in emotional and social development.
A star's explosive demise has added a shiny new feature to NGC 1433, a barred spiral galaxy approximately 50 million light-years away in the southern constellation Horologium (the Pendulum Clock). New images of supernova SN 2026ahvu from the U.S. Department of Energy–fabricated D
While young people are constantly exposed to news about climate change, their resulting anxiety does not always translate into environmental action. A new study published in Climate reveals that the relationship between climate distress and climate action is highly complex. While
The ESA's Euclid has already teased us with some early results. In the past, it's given us a small image covering 60 square degrees of the sky, created with a few days of observations. Those images showed individual targets from the Horsehead Nebula to the Perseus cluster of gala
China's one-child policy is widely considered one of the most stringent public policies in modern history. Yet researchers have long debated how much it actually contributed to the country's dramatic fertility decline.
The moon is not the Wild West: Experts call for a pause on lunar industrialization and more — today's student signal.
As the major powers and the private companies go full tilt with their plans to develop infrastructure and extract resources on the moon, the questions around environmental protection, international regulation and who benefits all come into play. Vilnius University Institute of In
Extra time on assignments. Frequent breaks. A quiet place to work. For students with attention-deficit/hyperactivity disorder (ADHD), these are some of the most common accommodations schools provide to make learning easier. But are they actually helping children succeed? A new st
The advance of urbanization in the São Paulo Metropolitan Area in Brazil is causing the collapse of food webs in local streams. A study published in August in the journal Nature Cities reveals that the impact of the metropolis goes far beyond a simple reduction in species. Degrad
Since 2022, astronomers have been puzzling over a new kind of cosmic object called long-period radio transients. These are objects that emit bright flashes of radio waves into space every few minutes to every few hours. Some have been traced back to binary systems consisting of a
Today, Old Dongola is an abandoned settlement on the banks of the Nile in northern Sudan. Hundreds of years ago, however, this place looked very different.
NASA's Voyager 1 is about to become humanity's first object to reach one light-day from Earth as it pushes ever deeper into interstellar space.
Thanks to the gravitational lensing caused by a massive galaxy cluster and high-resolution images from the James Webb Space Telescope (JWST), astronomers discovered an exploding star when the universe was 4.9 billion years old. The discovery paper, posted to the arXiv preprint se
Earth is approximately 4.5 billion years old, according to estimates. However, rocks dating back to the planet's earliest days are extremely rare. Hence the excitement over the discovery in northern China of some of the oldest known rocks on Earth, dating back 3.95 billion years.
Lake Baikal in Siberia holds around 20% of the world's surface freshwater, making it the most voluminous freshwater lake (Lake Superior on the United States–Canada border is the largest by surface area). This makes the lake one of the most important environments for biodiversity—
How unequal were prehistoric societies? And how can archaeologists measure wealth in cultures that left behind no written records, no tax registers and no census data?
In propulsion system design, engineers have long faced a trade-off between solid and liquid rocket fuels. Each has advantages and disadvantages, and in an effort to try to min/max the efficacy of different types of fuel, researchers have long placed an emphasis on a hybrid betwee
A simple change to your daily routine could make a surprising difference in how you feel, both physically and mentally. University of Missouri researchers found that older adults who followed consistent daily schedules reported less physical pain and fewer symptoms of depression,
Stanford researchers have discovered that hidden patterns of brain activity can predict Alzheimer’s risk years before memory problems appear, potentially offering an earlier warning than traditional biomarkers. The same patterns also reveal which brains are unusually resistant to
