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66 articles from PhysOrg

New deep learning method adds 301 planets to Kepler's total count

Scientists recently added a whopping 301 newly validated exoplanets to the total exoplanet tally. The throng of planets is the latest to join the 4,569 already validated planets orbiting a multitude of distant stars. How did scientists discover such a huge number of planets, seemingly all at once? The answer lies with a new deep neural network called ExoMiner.

Scientist reveals cause of lost magnetism at meteorite site

A University of Alaska Fairbanks scientist has discovered a method for detecting and better defining meteorite impact sites that have long lost their telltale craters. The discovery could further the study of not only Earth's geology but also that of other bodies in our solar system.

Peeking into a chrysalis, videos reveal growth of butterfly wing scales

If you brush against the wings of a butterfly, you will likely come away with a fine sprinkling of powder. This lepidopteran dust is made up of tiny microscopic scales, hundreds of thousands of which paper a butterfly's wings like shingles on a wafer-thin roof. The structure and arrangement of these scales give a butterfly its color and shimmer, and help shield the insect from the elements.

New device modulates visible light—without dimming it—with the smallest footprint and lowest power consumption

Over the past several decades, researchers have moved from using electric currents to manipulating light waves in the near-infrared range for telecommunications applications such as high-speed 5G networks, biosensors on a chip, and driverless cars. This research area, known as integrated photonics, is fast evolving and investigators are now exploring the shorter—visible—wavelength range to...

Surprise discovery of two new—and very loud—frog species

Scientists from the University of Newcastle, Australian Museum, South Australian Museum, and Queensland National Parks and Wildlife have found and described two new, very loud frog species from eastern Australia: the Slender Bleating Tree Frog, Litoria balatus, and Screaming Tree Frog, Litoria quiritatus.

Caucasian households in U.S. emit most carbon despite greater energy efficiency

Residential energy use represents roughly one-fifth of annual greenhouse gas emissions in the United States. A team of researchers led by McGill University has used data from 60 million individual American households to look into how carbon emissions caused by household energy use vary by race and ethnicity across the country. Paradoxically, this first national level analysis found that even...