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Phys.org / DNA damage just got more complicated: A long-missed weak spot emerges when light and oxygen strike
In everyday life, our genetic material is constantly under attack from many factors. Environmental influences such as light, along with internal processes like inflammation, can generate oxidative stress that damages DNA ...
Phys.org / Climate and competition alone cannot explain Neanderthal extinction, study finds
A new modeling study suggests that greater connectivity between groups may have given Homo sapiens the edge over Neanderthals. Why Neanderthals went extinct and Homo sapiens established a lasting presence in Europe is still ...
Phys.org / New bioreactor turns stem cells into an immune-cell factory, producing 40 million human macrophages per week
Researchers at Hannover Medical School (MHH) have developed a method for the efficient production of human immune cells, such as macrophages, in medium-sized bioreactors. These immune cells can be derived from induced pluripotent ...
Science X / Kakapel rock art traces millennia of painters in Kenya
A recent study published in Azania: Archaeological Research in Africa presents the first millimeter-accurate recording of the paintings at Kakapel rock shelter in Kenya, linking the layers of rock art painted over thousands ...
Phys.org / Ancient amber reveals a true bug equipped with claws, a highly unusual feature
Amber from the Kachin region of Myanmar has preserved a wealth of fossils, offering insights into the diversity of the Cretaceous fauna of a 100-million-year-old forest ecosystem. The site continues to yield previously unknown ...
Phys.org / From the Pampas to Patagonia, DNA reveals South America's human history
A new genetic study shows that cultural diversity in the so-called Southern Cone—the roughly triangular southernmost part of South America—was strongly influenced by extensive human migration. An international research team ...
Phys.org / This volcano that 'slept' for 100,000 years was never truly quiet
For more than 100,000 years, the Methana volcano in Greece appeared dormant. No lava, no explosions, no ash clouds. It appeared extinct, like many other volcanoes today. An international research team led by ETH Zurich has ...
Phys.org / Nuclear war at Ukraine-Russia border could trigger years of global climate disruption and radioactive fallout
Geopolitical tensions in Eastern Europe underscore the urgency of addressing the climate and radiological consequences of a regional nuclear conflict. Even a small-scale nuclear conflict at the Ukraine–Russia border could ...
Phys.org / Milky Way's 'little cousins' may hold clues about infant universe
Ultra-faint dwarf galaxies—tiny satellite galaxies orbiting the Milky Way—have long been seen as cosmic fossils. Now, a new study published today in Monthly Notices of the Royal Astronomical Society uses an unprecedented ...
Phys.org / Moon dust could stop being a nuisance and start reshaping how humans may build beyond Earth
As space agencies and private companies look toward a sustained human presence on the moon, a fundamental challenge centers on how to build strong, durable infrastructure without hauling every material from Earth. New research ...
Phys.org / Common soil fungus could cut pesticide use while helping tomatoes grow stronger
Trichoderma species—a common fungus found in soils—have varying abilities to promote tomato plant growth and differentially affect the abundance of certain soil bacteria, according to a study led by researchers at Penn State.
Phys.org / Study shows a widely used antifungal drug works only when its target enzyme is active
Serious fungal infections are on the rise, and many hospital-acquired cases are becoming harder to treat as fungi become resistant to available medications. One of the most widely used therapies, caspofungin, combats Candida ...