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Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.
Qubits, the quantum equivalent of digital bits, are fragile and prone to errors. That makes building reliable quantum computers extremely difficult. One fix has been to use traditional magic state distillation, which filters out flaws, but it is extremely resource-intensive.
The ocean beneath Saturn's moon Enceladus lies under kilometers of ice, but some of its contents do reach the surface. Jets near the south pole spray out water vapor and icy particles, offering a way to investigate the hidden ocean without drilling down to it.
When scientists talk about scavengers, you might imagine an animal sniffing out or stumbling across a carcass, eating as much as possible and slinking away.
As human activity has increased temperatures globally, determining the costs directly incurred by climate change is challenging. The effects of climate change on extreme weather events—such as hurricanes and heat waves—can be locally specific and variable, and observations and cl
NASA’s Nancy Grace Roman Space Telescope has exceeded expectations after engineers made incredibly tiny adjustments to sharpen its view of the universe. By moving a mirror just one-sixteenth the width of a human hair, the team helped bring its powerful instruments into near-perfe
Scientists have uncovered a surprising cause of age-related cognitive decline involving brain cells previously thought to be entirely beneficial. As these cells become dysfunctional, they can produce abnormal amounts of myelin, disrupting nerve fibers and potentially contributing
Poor access to health care, limited local influence over research priorities and an unequal distribution of scientific benefits are undermining public confidence in science, experts warn, following the release of a global trust survey.
The strong El Niño currently under way in the Pacific Ocean raises the specter of marine heat waves and coral bleaching once again threatening Australia's iconic Great Barrier Reef. And now new research has revealed the complex interplay of atmospheric patterns and weather system
Optical imaging links altered metabolism and oxygen use in Alzheimer's disease and more — today's news signal.
Alzheimer's disease is best known for its effects on memory and cognition, but the disease also involves changes in how brain cells produce and use energy. Mitochondria, the structures that supply much of a cell's energy, can become dysfunctional in Alzheimer's disease. At the sa
Scientists have discovered a surprising two-way relationship between sleep and growth hormone, revealing how the brain carefully balances physical recovery with wakefulness. The findings could help explain why poor sleep harms metabolism and brain health, potentially opening the
A new international study led by Lund University examines what happened to population levels after the Kikai-Akahoya volcanic eruption in prehistoric Japan. The results paint a more complex picture than what had previously been believed. The paper is published in the journal Scie
Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.
Qubits, the quantum equivalent of digital bits, are fragile and prone to errors. That makes building reliable quantum computers extremely difficult. One fix has been to use traditional magic state distillation, which filters out flaws, but it is extremely resource-intensive.
When a massive environmental disaster strikes, do societies simply collapse and disappear? Or do people find a way to adapt, rebuild and recover?
When someone is badly injured, doctors urgently need two facts: the patient's blood type, so that a transfusion is safe, and their hematocrit, the share of the blood made up of red blood cells, which reveals blood loss or anemia. Hospitals measure both with large machines that ne
The ocean beneath Saturn's moon Enceladus lies under kilometers of ice, but some of its contents do reach the surface. Jets near the south pole spray out water vapor and icy particles, offering a way to investigate the hidden ocean without drilling down to it.
When scientists talk about scavengers, you might imagine an animal sniffing out or stumbling across a carcass, eating as much as possible and slinking away.
As human activity has increased temperatures globally, determining the costs directly incurred by climate change is challenging. The effects of climate change on extreme weather events—such as hurricanes and heat waves—can be locally specific and variable, and observations and cl
Astronomers using China's FAST radio telescope have discovered a compact cloud of hydrogen with no visible stars or galaxy around it. This could be one of the strongest candidates yet for an isolated "dark galaxy," containing nearly 500,000 times the sun's mass in neutral hydroge
NASA’s Nancy Grace Roman Space Telescope has exceeded expectations after engineers made incredibly tiny adjustments to sharpen its view of the universe. By moving a mirror just one-sixteenth the width of a human hair, the team helped bring its powerful instruments into near-perfe
Scientists have uncovered an unexpected trade-off in the wings of the European nightjar, a bird that migrates thousands of kilometers but sacrifices high-speed flight efficiency to hunt insects with remarkable agility. Even more surprisingly, it generates thrust on the upward win
With about 30 visual pigments, compared to just three in humans, mantis shrimp possess a visual system that remains a mystery. Researchers from ULiège and Humboldt University in Berlin have, for the first time, analyzed these pigments one by one and discovered that some detect re
