Astronomers have captured a clear start-to-finish image sequence of an explosive emission of dust, ice and gases during the close approach of comet 46P/Wirtanen in late 2018.

The presence of technology startups can drive economic growth for their home cities. So how can cities better appeal to entrepreneurs? A new study shows the connections they can offer matter more than big money.

The health impacts of radio-frequency radiation (RFR) are still inconclusive, but the data to date warrants more caution in placing cell towers. An engineering team considers the current understanding of health impacts and possible solutions, which indicate a 500-meter (one third of a mile) buffer around schools and hospitals may help reduce risk for vulnerable populations.

Much remains unknown about diseases and the way our bodies respond to them, in part because the human genome is the complete DNA assembly that makes each person unique. Researchers have created new technology to help in understanding how the human body battles diseases.

Research on immune cells 'exhausted' by chronic viral infection provides clues on how to refine cancer immunotherapy. The Immunity paper defines a transitional stage in between stem-like and truly exhausted cells.

Residents of rural areas are more likely to be hospitalized and to die than those who live in cities primarily because they lack access to specialists, according to new research.

While some diets load up on protein and other diets dictate protein sources, it can be hard to know what to consume while managing weight or during weight loss. A new study by nutrition scientists shows that eating more protein daily than what is recommended may benefit only a few - those who are actively losing weight by cutting calories or those strength training to build more lean muscle mass.

A new experiment has found that some corals are more likely to eat microplastics when they are consuming other food, yet microplastics alone are undesirable.

Researchers have used yeast to learn more about how satellite (extrachromosomal) DNA circles are formed to carry amplified genes, how the gene duplication is specific to the environmental pressure and the effects of age. Understanding the mechanism of gene duplication and DNA circle formation has relevance to the biology of ageing and the development of drug resistance in cancers cells.

Researchers have developed a novel approach to tackling one of the biggest challenges of endovascular surgery: how to reach the most difficult-to-access physiological locations. Their solution is a robotic platform that uses the fringe field generated by the superconducting magnet of a clinical MRI scanner to guide medical instruments through deeper and more complex vascular structures. The...

Of the many marvels of the human immune system, the processing of antigens by the class I proteins of the major histocompatability complex (MHC-I) is among the most mind-boggling. Exactly how these proteins carry out their crucial functions has not been well understood. Now, however, researchers have worked out the details of key molecular interactions involved in the selection and processing of...

Computers can learn to find flares and other events in vast streams of solar images to help forecasters issue timely alerts, according to a new study. The machine-learning technique searches satellite data for features significant for space weather. Changing conditions on the Sun can affect various technologies on Earth, blocking radio communications, damaging power grids, and diminishing...

A new study determined that the Earth's crust in southern Arizona was once almost 60 kilometers thick, which is twice as thick as it is today -- and comparable to how thick the crust is in parts of the Himalayas.

Every character has a back story, and so do high-temperature superconductors, which conduct electricity with no loss at much higher temperatures than scientists once thought possible. Recent experiments have probed the normal state more accurately than ever before and discover an abrupt shift in the behavior of electrons in which they suddenly give up their individuality and behave like an...

A newly published report finds that firefighters who struggle with PTSD symptoms, and who think they cannot handle negative emotions, are likely to drink and use alcohol it to cope with negative emotions.

A new approach could inform the design of quantum materials platforms for future electronics, as well as faster devices with more storage capabilities.

Metalenses -- flat surfaces that use nanostructures to focus light -- are poised to revolutionize everything from microscopy to cameras, sensors, and displays. But so far, most of the lenses have been about the size of a piece of glitter. While lenses this size work well for some applications, a larger lens is needed for low-light conditions, such as an imaging system onboard orbital satellites,...

Using innovative RNA sequencing techniques, researchers identified a promising novel treatment for lymphatic filariasis, a disabling parasitic disease that is difficult to treat. The potential new therapy is an experimental cancer drug called JQ1 and targets proteins found prominently in the worm's genome; it appears to effectively kill the adult worms in a laboratory setting, according to the...

New insight on how a type of cell facilitates the spread of HIV-1 has just been published.

Using a virtual reality simulation to show how flu spreads and its impact on others could be a way to encourage more people to get a flu vaccination, according to a new study.

A surprising analysis of the composition of gas giant exoplanets and their host stars shows that there isn't a strong correlation between their compositions when it comes to elements heavier than hydrogen and helium. This finding has important implications for our understanding of the planetary formation process.

Streptomyces bacteria are our primary source of antibiotics, which are produced in the transition from vegetative growth to sporulation in a complex developmental life cycle.

Scientists studying the weather and climate of Titan, Saturn's largest moon, have reported a significant seasonal variation in its energy budget, a finding which could yield new insights into climate on Earth.

A survey of coral reef cores on the Great Barrier Reef has revealed how it has responded to recent periods of rapid sea-level rise. The study, covering the past 9000 years, has revealed a system in delicate balance.