Sharks may be closer to the city than you think, new study finds
The world's coastlines are rapidly urbanizing, but how this increased human presence may impact species living in the ocean is not fully understood. In a new study led by scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science, researchers tracked the movements of three shark species, bull, nurse and great hammerhead, in relation to the city of Miami. Given...
The coronal veil: Are the sun's magnetic arches an optical illusion?
From afar, the Sun appears blank and featureless in visible light. But through a solar telescope in different wavelength, it is revealed to be much, much more.
Solving the puzzle of 2D disorder
When players try to solve word games, they attempt to put together clues to find the solution. Sure, it helps to have a strong vocabulary, but finding the right answers to those puzzles is as much about logic and strategy as it is about being a wordsmith.
NASA completes critical testing milestone for NOAA's JPSS-2 satellite
The Joint Polar Satellite System-2 satellite, or JPSS-2, has cleared a critical testing milestone, bringing it a step closer to launch. Last week, the National Oceanic and Atmospheric Administration's polar-orbiting satellite emerged from the chamber after completing its thermal vacuum testing. This test is meant to show that the spacecraft and all of its instruments will perform successfully when...
NASA spacecraft observes asteroid Bennu's boulder 'body armor'
Asteroid Bennu's boulder-covered surface gives it protection against small meteoroid impacts, according to observations of craters by NASA's OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer) spacecraft.
Supercomputing helps reveal weaknesses in HIV-1 virus
Much remains to be discovered on how the HIV-1 virus infects our cells. Scientists know that it slips past the defenses of our immune system, entering white blood cells to deliver its genetic payload and hijack the cell's transcription machinery that in turn cranks out copies of viral RNA and new HIV-1 viruses. But many of the details remain hazy.
Experiment results confirm anomaly, could point to new elementary particle
New scientific results confirm an anomaly seen in previous experiments, which may point to an as-yet-unconfirmed new elementary particle, the sterile neutrino, or indicate the need for a new interpretation of an aspect of standard model physics, such as the neutrino cross section, first measured 60 years ago. Los Alamos National Laboratory is the lead American institution collaborating on the...
San Diego Zoo welcomes 1st aardvark birth in years
An aardvark cub born at the San Diego Zoo is doing well and developing quickly, according to wildlife specialists.
Gateway towns to Yellowstone become dead ends after flood
This gateway town to Yellowstone National Park has become a dead end, a casualty of the severe flooding that tore through one of America's most beloved natural attractions and swept away roads, bridges and homes.
New images using data from retired telescopes reveal hidden features in neighboring galaxies
New images using data from ESA (European Space Agency) and NASA missions showcase the gas and dust that fill the space between stars in four of the galaxies closest to our own Milky Way. More than striking, the snapshots are also a scientific trove, lending insight into how dramatically the density of dust clouds can vary within a galaxy.
New global biodiversity framework falls short on inclusion of chemical pollutants, say environmental experts
Environmental scientists, ecologists, and policy experts argue in a letter published today in Science that the proposed Post-2020 Global Biodiversity Framework—a new international agreement to protect biodiversity—fails to account for the totality of chemical pollutants that threaten the health of ecosystems worldwide. Their recommendations arrive ahead of Post-2020 Global Biodiversity...
Off-season cattle grazing to help control fire danger from invasive cheatgrass
Cheatgrass, an invasive annual grass that has invaded Nevada rangelands, is responsible for much of the increasing wildfire danger in the Intermountain West. However, scientists at the University of Nevada, Reno have discovered that fire danger can be reduced through the application of targeted cattle grazing in the dormant growing season by attracting the cattle with stations containing protein...
Exploring soy sauce's salt-enhancing peptides
Soy sauce deepens the flavor of soup stocks, gives stir-fried rice its sweet-salty glaze and makes a plate of dumplings absolutely enjoyable. But what exactly makes this complex, salty, umami sauce so tasty? Now, researchers reporting in the Journal of Agricultural and Food Chemistry have discovered the proteins and other compounds that give soy sauce its distinctive flavors and they say that...
Researchers discuss 'WRNing' for the right DNA repair pathway choice
A new editorial paper titled "WRNing for the right DNA repair pathway choice" has been published in Aging .
Using cell phone data to track population movements and more efficiently implement pandemic lockdowns
New research in the INFORMS journal Management Science identifies a new method of implementing pandemic lockdowns that decreases infection rates while also limiting negative economic impacts.
Privileges confirmed for straight white men working in STEM
A new study that considered multiple aspects including sexual identity and disabilities confirms a long-held belief: White, heterosexual men without disabilities are privileged in STEM careers.
To treat or to tolerate pathogens, that is the question
Why do some people seem to never get sick while others consistently fall prey to viruses and bacteria? How can the spouse of a sick person avoid catching their partner's bug despite sleeping next to them every night? Questions like these have become top-of-mind for many people during the COVID-19 pandemic, and scientists are now a big step closer to answering them thanks to some aquatic helpers:...
Did supernovae help form Barnard's Loop?
Astronomers studying the structure of the Milky Way galaxy have released the highest-resolution 3D view of the Orion star-forming region. The image and interactive figure were presented today at a press conference hosted by the American Astronomical Society.
Droughts in the sixth century paved the way for Islam
Extreme dry conditions contributed to the decline of the ancient South Arabian kingdom of Himyar. Researchers from the University of Basel have reported these findings in the journal Science. Combined with political unrest and war, the droughts left behind a region in disarray, thereby creating the conditions on the Arabian peninsula that made possible the spread of the newly emerging religion of...
Gene interaction that contributes to rice heat tolerance identified
Rice is one of the most important staple crops, on which more than half of the world's population depends. But as temperatures rise and extreme weather events increase, rice is becoming more vulnerable. Genetically modified strains can withstand some flooding, but few, if any, can survive the heat stress caused by the combination of high temperatures and drought. There may be hardier crops on the...
Study: Humans responsible for over 90% of world's oil slicks
A team of U.S. and Chinese scientists mapping oil pollution across the Earth's oceans has found that more than 90% of chronic oil slicks come from human sources, a much higher proportion than previously estimated.
Largest study of domestic cat DNA identifies disease-causing variants in new breeds
Thirteen genetic variants associated with disease in cats are present in more pedigreed breeds than previously thought, according to the largest ever DNA-based study of domestic cats, led by Heidi Anderson from Wisdom Panel in the United States and colleagues from the University of Helsinki in Finland. However, these variants are declining in frequency in breeds that are regularly screened for the...
Quantum simulator shows how parts of electrons move at different speeds in 1D
A quantum simulator at Rice University is giving physicists a clear look at spin-charge separation, the quantum world's version of the magician's illusion of sawing a person in half.
Photonic integrated erbium doped amplifiers reach commercial performance
Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers. They are often used in long-distance communication fiber optic cables and fiber-based lasers. Invented in the 1980s, EDFAs have profoundly impacted our information society enabling signals to be routed across the Atlantic and replacing electrical repeaters.
Red meat consumption may remain high in Finland despite consumer support for plant-based diets
Meat production is a significant source of greenhouse gasses and widespread adoption of a plant-based diet is key to achieving the United Nations 2030 Sustainable Development Goals. A study publishing June 16th in PLOS Sustainability and Transformation by Maijaliisa Erkkola at the University of Helsinki, Finland, and colleagues suggests that while consumers may have an attitudinal openness to...