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Simple semiconductor films break light's front-back symmetry

Light typically interacts with a material the same way whether it enters through the front or the back—like polarized sunglasses that work the same from either side. Cornell researchers have demonstrated a simple route to breaking that symmetry, opening new possibilities for

Soil carbon effectively measured by new, efficient AI model

A new computer model is one of the first artificial intelligence tools to advance scientific discovery in agriculture and biogeochemistry and is 50 times more efficient than its predecessors, according to a study that offers a proof-of-principle for how AI might be used to shed

What Australian lakes showed us about Martian hydrology

The expansive red bluffs of Western Australia's Yilgarn Craton give the landscape a Martian appearance. It turns out the resemblance is more than superficial: The Yilgarn Craton also shares geological characteristics with lakes in Mars' Terra Sirenum region. T. A. Plattner and

'Dead stars' may have surprisingly healthy appetites

"Dead stars" known as white dwarfs have already shown the potential to help us better understand how planetary systems, including our own solar system, take shape and evolve. Now, research from the University of Michigan and the University of Colorado Boulder suggests that

Rethinking how we protect the world's mountain communities

As melting glaciers and shifting climates push mountain ecosystems to the brink, an international team of researchers has outlined a radical new approach aimed at strengthening the resilience, inclusivity and sustainability of mountains and the societies that depend on them.

Low-cost, rare-earth-free material for carbon recycling

To improve carbon recycling and reduce emissions, researchers at Science Tokyo developed iron-substituted calcium titanate (Fe-doped CaTiO3) as an environmentally friendly support material for chemical looping, a process that converts carbon dioxide (CO2) into carbon monoxide

Scientists pinpoint where cells first begin copying DNA

Researchers at the MRC Laboratory of Medical Sciences (LMS) and collaborators have uncovered one of the earliest steps in DNA replication: the moment a cell first opens its DNA to begin making a copy of its genome. The findings, published in Nature Communications, reveal where