An international group of researchers observed a source of variable gamma rays identified in 2010 by the NASA satellite Fermi. They used a technique called VLBI, that combines data from several radio telescopes on Earth, to produce the sharpest images to date. Surprisingly, the source of gamma rays was a symbiotic nova, a peculiar stellar system known to astronomers as V407 Cyg. The result, with...

Cellular waste disposal, where autophagy and lysosomes interact, performs elementary functions, such as degrading damaged protein molecules, which impair cellular function, and reintroducing the resulting building blocks such as amino acids into the metabolic system.

A wind-driven wildfire destroyed homes and forced evacuations as it tore through a rural Southern California desert town near the Salton Sea, authorities said Monday.

The commander of the International Space Station said Monday that losing a mirror during last week's otherwise successful spacewalk was "a real bummer."

A new fundamental understanding of polymeric relaxor ferroelectric behavior could lead to advances in flexible electronics, actuators and transducers, energy storage, piezoelectric sensors and electrocaloric cooling, according to a team of researchers at Penn State and North Carolina State.

Ion channels and membrane transporters are in the business of moving ions and small molecules across cellular membranes. They are essential for metabolic and cellular homeostasis, and for a host of biological signaling pathways.

In their efforts to better understand ongoing wildlife trafficking and the dynamics of unsustainable bear product use by consumers in Cambodia, a team of researchers led by San Diego Zoo Global made an unexpected discovery: The use of bear bile and body parts in traditional remedies consumed by new and pregnant mothers.

Religious beliefs have shaped societal attitudes toward sexual minorities, with many religious denominations vocally opposing expanded sexual minority rights. Because of this stigmatization, lesbian, gay and bisexual individuals are less likely to affiliate with a religious group—but research from the University of Nebraska-Lincoln and Old Dominion University suggests they are not abandoning...

When work meetings shifted online this spring, some may have noticed new standouts among their colleagues. According to new research, members of virtual teams identify leaders in significantly different ways compared to members of in-person teams.

Barth syndrome is a rare condition that occurs almost exclusively in males. Symptoms include an enlarged and weakened heart. The condition is present at birth or becomes evident early in life. Life expectancy is shortened and there is no treatment.

Modelling of the Chicxulub asteroid impact 66 million years ago shows it created a world largely unsuitable for dinosaurs to live in.

A scientist might want to do cartwheels upon making a discovery, but this time the discovery itself relies on cartwheels.

Commercial fishing taking place worldwide has dipped since the start of the coronavirus pandemic, but scientists and conservation experts say it's unclear if the slowdown will help endangered species of marine life recover.

Cholera can kill within hours if left untreated, and it sickens as many as 4 million people a year. In a new article in the journal Cell, researchers describe how gut bacteria helps people resist the disease.

Research at IIT-Istituto Italiano di Tecnologia (Italian Institute of Technology) has led to the revolutionary development of an artificial liquid retinal prosthesis to counteract the effects of diseases such as retinitis pigmentosa and age-related macular degeneration that cause the progressive degeneration of photoreceptors of the retina, resulting in blindness. The study has been published in...

Scientists have developed new image processing techniques for microscopes that can reduce post-processing time up to several thousand-fold. The researchers are from the National Institutes of Health with collaborators at the University of Chicago and Zhejiang University, China.

Scientists from the Department of Energy's Oak Ridge National Laboratory and a dozen other international research institutions have produced the most elaborate set of projections to date that illustrates possible futures for major monsoon regions.

Southwest Research Institute scientists have increased the speed and accuracy of a laboratory-scale instrument for determining the age of planetary specimens onsite. The team is progressively miniaturizing the Chemistry, Organics and Dating Experiment (CODEX) instrument to reach a size suitable for spaceflight and lander missions.

The South Pole has warmed three times faster than the rest of the planet in the last 30 years due to warmer tropical ocean temperatures, new research showed Monday.

Japan said Monday it will step up its defense capability in space and improve its ability to detect and track missiles, while cooperating with the United States in response to what it called a growing threat from North Korea and China.

Most volcanic eruptions take place unseen at the bottom of the world's oceans. In recent years, oceanography has shown that this submarine volcanism not only deposits lava but also ejects large amounts of volcanic ash.

Coastal wetlands like salt marshes are increasingly recognized as valuable natural defenses that protect coasts against strong wave attacks. Yet their performance during real-world, extreme storms has rarely been told. By digging into major historic records of flood disasters, a research team led by scientists from the Royal Netherland Institute for Sea Research (NIOZ), Delft University of...

The unique remains of a prehistoric, giant wombat-like marsupial—Mukupirna nambensis—that was unearthed in central Australia are so different from all other previously known extinct animals that it has been placed in a whole new family of marsupials.

We have known for some time that over-use of antibiotics is causing a frightening increase in antibiotic resistance in bacteria, through the rapid spread of antibiotic resistance genes. What may be behind this is not just the spread of these genes, but a fundamental change in the way evolution is driving the economy of gene content among microbes.