Scientists introduce an open-source method to simplify nanoparticle analysis using scanning electron microscope images.

New evidence identifies 64 pesticide residues in milkweed, the main food for monarch butterflies in the west. Milkweed samples from all of the locations studied in California's Central Valley were contaminated with pesticides, sometimes at levels harmful to monarchs and other insects. 32% of the samples contained pesticide levels known to be lethal to monarchs, according to a new study.

Dating archaeological objects precisely is difficult, even when using techniques such as radiocarbon dating. Using a recently developed method, based on the presence of sudden spikes in carbon-14 concentration, scientists have pinned the date for the construction of an eighth-century complex in southern Siberia to a specific year. This allows archaeologists to finally understand the purpose for...

Once you crush, cut or fracture a rock, there are no do-overs. It's a fact that means geoscientists have to be particularly careful about which rock samples they can sacrifice to physics experiments versus which ones should stay on the shelf. A team of geoscience researchers is working to change that with a new method for creating digital replicas of rock samples that is more accurate and simpler...

A precision measurement of helium and hydrogen mirror isotopes reveals new questions in understanding of nuclear structure.

The new magnetic sensor is inexpensive to make, works on minimal power and is 20 times more sensitive than many traditional sensors.

Scientists have found new details about how supernovas boost charged particles to nearly the speed of light.

Researchers have discovered that repurposed enzymes and light are key to producing chemical compounds in an environmentally friendly fashion. By blending bio- and photocatalysis and experimenting with reactionary 'ingredients,' the research team developed a visible-light-induced reaction using the enzyme family ene-reductase (ER). The substrates used in this study, alkenes, can be derived in...

Scientists have developed a hybrid material constructed from a metal oxide nanosheet and a light-absorbing molecule for splitting water molecules (H2O) to obtain dihydrogen (H2) under sunlight. Since H2 can be used as carbon-free fuel, this study provides relevant insight towards clean energy generation.

Scientists have recently identified a small mitochondrial uncoupler, named BAM15, that decreases the body fat mass of mice without affecting food intake and muscle mass or increasing body temperature.

Neuroengineers have created a tiny surgical implant that can electrically stimulate the brain and nervous system without using a battery or wired power supply.

Engineers have synthesized a tiny structure with high surface area and discovered how its unique architecture drives ions across interfaces to transport energy or information. Their 'nanobrush' contains bristles made of alternating crystal sheets with vertically aligned interfaces and plentiful pores.

Researchers working in rural Kenya have identified the most productive breeding habitats for mosquitoes that spread a range of untreatable viruses. Their findings point to more effective health interventions that focus on the purpose of water-holding containers.

Engineers have designed a 'brain-on-a-chip,' smaller than a piece of confetti, that is made from tens of thousands of artificial brain synapses known as memristors -- silicon-based components that mimic the information-transmitting synapses in the human brain.

Monkeys can overcome their aversion to animated monkeys through a more realistic avatar, according to new research.

A research team counted over 136,000 rockfalls on the moon caused by asteroid impacts. Even billions of years old landscapes are still changing.

In previous research, it has been assumed that insects in temperate regions would cope well with or even benefit from a warmer climate. Not so, according to researchers. The earlier models failed to take into account the fact that insects in temperate habitats are inactive for much of the year.

The Paris Agreement lays out national quotas on CO2 emissions but not removal, and that must be urgently addressed, say the authors of a new study.

An online study, involving more than 400 participants aged 18-35, reveals that memories for specific locations are either totally forgotten or, if they are remembered, it's with as much precision as when they were first learnt.

Some young, still-forming stars are surrounded by regions of complex organic molecules called ''hot corinos.'' In some pairs of young stars forming together as binary pairs, astronomers found a hot corino around one, but not the other. Guessing that the unseen one might be obscured by dust, researchers studied such a pair with the VLA at radio wavelengths that readily pass through dust, and found...

Muskrat populations declined sharply across North America over the last 50 years or so, and wildlife scientists have struggled to understand why. A research team investigated whether pathogens, parasites, environmental contaminants and disease may be contributing to this decline.

Chirality is a fundamental property of many organic molecules and means that chemical compounds can appear in not only one form, but in two mirror-image forms as well. Chemists have now found a way to spontaneously induce chirality in crystalline, liquid-crystalline and liquid substances, without requiring any external influence. The findings could be significant for the development of new active...

Loss of estrogen has an effect on muscles and leads to a decline in muscle mass. Physical activity in all of its forms may help maintain muscle mass in midlife.

Telepresence robots help university students learning remotely to feel more a part of the class, new research suggests.