Astronomy

Using gamma-ray bursts to probe origin of star formation excess discovered by Webb

Among its other notable achievements and puzzles, the James Webb Space Telescope (JWST) has found a larger number of bright galaxies in the distant universe than was expected. While scientists are still debating the excess, ...

Archaeology

'Getting high' in Paleolithic hunting: Elevated positions enhance javelin accuracy but reduce atlatl efficiency

A recent experimental study led by Kent State University and the Cleveland Museum of Natural History suggests that hunting from elevated positions significantly increases the performance of thrown javelins while potentially ...

Engineers develop new method for ultra-clean biofuel combustion

In new research published in the journal Fuel, Baylor University researchers with the Cornerstone Atomization and Combustion Lab (CAC) have unveiled a pioneering method for the efficient combustion of biofuels, using a revolutionary ...

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Tech Xplore

It's twins! Mystery of famed brown dwarf solved

Hundreds of papers have been written about the first known brown dwarf, Gliese 229B, since its discovery by Caltech researchers at the Institute's Palomar Observatory in 1995. But a pressing mystery has persisted about this ...

Team identifies origin of deadly ovarian cancer

Researchers have identified the origin of ovarian cancer that develops in the fallopian tube, which opens doors to discovering new methods for diagnosing the disease and potential therapies.

Understanding landslides: A new model for predicting motion

Along coastal California, the possibility of earthquakes and landslides is commonly prefaced by the phrase, "not if, but when." This precarious reality is now a bit more predictable thanks to researchers at UC Santa Cruz ...

Chickpeas identified as key crop for future food security

Climate change has a negative impact on food security. An international research team led by Wolfram Weckwerth from the University of Vienna has now conducted a study to investigate the natural variation of different chickpea ...

Mechanism of cobalt–manganese catalysts deciphered

Conventional catalysts for hydrogen production via water electrolysis usually contain precious metals and are expensive. However, cheaper alternatives have been developed, for example cobalt–manganese catalysts. They have ...

Two pesticides approved for use in US harmful to bees

A previously banned insecticide, which was approved for agricultural use last year in the United States, is harmful for bees and other beneficial insects that are crucial for agriculture, and a second pesticide in widespread ...

Arnhem Land Maliwawa rock art opens window to past

zStunning Arnhem Land rock art images including three rare depictions of bilbies and a dugong have been described by researchers in a new paper in Australian Archaeology this week.

Supercontinuum lasers can lead to better bread and beer

Researchers from the Department of Food Science (FOOD) at the University of Copenhagen in Denmark are the first in the world to have analysed whole grains with long near-infrared wavelengths using a new type of light source, ...

NASA small satellite promises big discoveries

Small satellites provide a cheap, responsive alternative to larger, more expensive satellites. As demand grows, engineers must adapt these "nanosatellites" to provide greater data returns. NASA, in collaboration with educational ...

American oaks share a common northern ancestor

If you had been in northern Canada 45 million years ago, you might have encountered the distant ancestor of all of the oaks in the Americas. That single species gave rise to 220 more and two distinct lineages—red oaks and ...

Nanosat fleet proposed for voyage to 300 asteroids

A fleet of tiny spacecraft could visit over 300 asteroids in just over three years, according to a mission study led by the Finnish Meteorological Institute. The Asteroid Touring Nanosat Fleet concept comprises 50 spacecraft ...

Size matters in the detection of exoplanet atmospheres

A group analysis of 30 exoplanets orbiting distant stars suggests that size, not mass, is a key factor in whether a planet's atmosphere can be detected. The largest population-study of exoplanets to date successfully detected ...

Can the world's megacities survive the digital age?

Today, megacities have become synonymous with economic growth. In both developing and developed countries, cities with populations of 10 million or more account for one-third to one-half of their gross domestic product.

Understanding the glacial history of the western Arctic

To interpret what we see today both on land and at the seabed, we need to understand how the landscape was different in the past. When we say "past," we mean on a geologic timeframe—specifically, about 10,000 to 20,000 ...