Canine sarcoptic mange (scabies) is a skin condition in which microscopic mites (Sarcoptes scabiei) infest dogs' skin. The condition is contagious and zoonotic and can be difficult to detect. If left untreated, it can cause bleeding sores, malnutrition, emaciation and secondary bacterial infections that may eventually lead to a dog's death.

A new paper published in Physical Review Letters reveals that a leading dark matter candidate—the hypothetical "dark photon"—would not have heated the early universe as previously thought. The finding opens a vast region for experimental searches and could change the hunt for dark matter.

A recent National Student Safety Survey found that one in six students attending Australian universities had been sexually harassed and one in 20 had been sexually assaulted since starting university.

Fusion reactors, devices that generate energy by fusing light atomic nuclei at extremely high temperatures, could contribute to ongoing efforts aimed at producing electricity more sustainably. The extreme environment inside these devices, however, can damage materials that surround the superheated, electrically charged plasma where the nuclear fusion reaction takes place.

Over the past two decades, photonic-crystal surface-emitting lasers (PCSELs) have shown promise as a type of advanced semiconductor laser useful in defense- and aerospace-related applications. Typically, these devices are made with photonic crystal patterns that repeat across the area of the device. But new research from the lab of electrical and computer engineering professor Kent Choquette has demonstrated a quasi-periodic photonic-crystal surface-emitting laser (QPCSEL). Fabricated with their buried dielectric platform, the group's device highlights a new avenue for creating tunable, more reliable semiconductor lasers. Their findings appear in Applied Physics Letters.

For the first time, researchers at the University of Minnesota Twin Cities have demonstrated that the low-purity iron ore prevalent in Minnesota can be used to create semiconductor-quality iron sulfide, also known as "fool's gold" or pyrite. This discovery could have cost-effective and sustainable applications in future electronic devices and other technologies.

Four more belugas have arrived at a Chicago aquarium as part of a plan to move Canada's last remaining captive whales from a shuttered theme park to aquariums in the United States and Spain.

In 2016, archaeologists working at the Phaleron Burial Ground, part of the ancient Attica region, uncovered an astonishing sight: three mass graves dating to the 7th and 6th centuries BCE containing the skeletons of 79 adult men. Many were bound together with metal shackles.

In ant colonies, a single ant can be the catalyst for a wave of mob activity, launching brief bursts of coordinated movement involving hundreds or even thousands of swarming workers, according to new simulations from New Jersey Institute of Technology.

Scientists are increasingly relying on powerful data sources and tools that they often cannot fully understand, inspect or verify, according to a new study.

A strengthening tropical storm named Lala is set to hit Hawaii's Big Island with hurricane-force gales on Saturday, bringing dangerous winds, rainfall and heavy surf.

The UK has experienced several heat waves this summer—heat stress among workers is one of the biggest causes of weather-related sick leave. Very high temperatures can cause symptoms like heat rash and cramps, or even exhaustion and heatstroke.

On the banks of the Waal, the Dutch branch of the Rhine, swimmers are sunning themselves on a Nijmegen beach that didn't exist before the river level dropped a few months ago.

A powerful magnitude 7.7 earthquake struck off the coast of Indonesia early Saturday, damaging buildings and homes, and triggering a tsunami warning. Authorities urged people on affected coastlines to move to higher ground.

More than 40 years after the end of commercial whaling, new research reveals a recent increase in sightings of the world's two largest whale species in the southeastern Atlantic. The findings, published in the African Journal of Marine Science, compiled more than 60 years of confirmed sightings and strandings from Namibia and South Africa's west coast. Although overall numbers remain low, sightings of both species have increased markedly in recent years—with 95% of observations recorded since 2012.

From launchpads to low Earth orbit and beyond, space companies and their affiliates are deploying a familiar marketing tactic—with a new twist. In a space economy projected to reach US$1.8 trillion by 2035, they sell space exploration narratives by appealing to a desire to expand humankind beyond Earth—while downplaying or omitting the negative repercussions for Earth and the space environment. Welcome to the age of starwashing.

Why do disagreements about vaccines, climate change or elections often feel so personal? Our research suggests it is not simply because other people have different beliefs. It is because we think those beliefs are mistaken.

As summer temperatures soar across the United States and Europe, cities are being forced to confront the difficult reality that they're getting dangerously hot.