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Phys.org / Mammal cloning cannot be endless: Mouse line fails at generation 58
There is a limit on how many times a mammal can be cloned before suffering "mutational meltdown," Japanese scientists have discovered, after making 1,200 clones over two decades that started off with a single mouse.
Phys.org / Canada's migratory caribou are under threat. Will we act before it's too late?
Delegates are gathering in Campo Grande, Brazil, for the 15th Conference of the Parties (COP15) on the Convention on the Conservation of Migratory Species of Wild Animals. The meeting aims to address growing threats to migratory ...
Tech Xplore / Why PEM fuel cells lose power: Study points to membrane-electrode interfaces
Fuel cells are considered a key technology for a climate-neutral energy supply. One particularly important type is the proton exchange membrane fuel cell (PEMFC). These devices convert hydrogen into electricity efficiently ...
Phys.org / NASA to build $20 bn moon base, pause orbital lunar station plans
NASA's chief on Tuesday said the US space agency will invest $20 billion to develop a base on the moon, while suspending its plans to create the lunar orbital space station known as Gateway.
Phys.org / 600-year-old pinot noir grape found in medieval French toilet
A 600-year-old grape seed discovered in the toilets of a medieval French hospital is genetically identical to the grapes still being used to make pinot noir wine, scientists said Tuesday.
Phys.org / 'Gray-box' AI reveals why catalysts work while speeding discovery
Self-driving laboratories (SDLs) powered by artificial intelligence (AI) are rapidly accelerating materials discovery, but can they also explain their results? Researchers from the Theory Department of the Fritz Haber Institute, ...
Phys.org / Genomic test could help stop destructive Asian spongy moth in its tracks
Invasive species cost Canada billions of dollars each year. Now, a team led by UBC researchers has developed a new genomic test that can trace the Asian spongy moth—one of the biggest threats to North America's forests—back ...
Tech Xplore / Platinum-free fuel cells get a boost thanks to carbon-coated nickel catalyst
A high acid environment is great for a snappy hydrogen oxidation reaction—the reaction at the heart of a clean-energy fuel cell. The problem is the only catalysts that won't dissolve in the high acid of traditional fuel ...
Medical Xpress / A protein may help revive exhausted T cells in cancer immunotherapy
Immunotherapy has been one of the most transformative treatments for cancer patients in recent decades, shifting the emphasis from the broad-spectrum approach of chemotherapy to prompting the immune system's boldest warriors—its ...
Phys.org / Satellite-driven model provides 'more realistic and reliable' predictions of sand and dust storm emissions
The technology used to predict sand and dust storm (SDS) severity has for decades systematically overestimated when and where sediment is transported across Earth's surface, a new study shows. Existing models, which draw ...
Phys.org / Boron arsenide semiconductor sets record in quantum vibrations
You may not be able to hear it, but all solid materials make a sound. In fact, atoms—bound in lattices of chemical bonds—are never silent nor still: Under the placid surface of each and every object in our surroundings, ...
Medical Xpress / Creating 'humble' medical AI systems that are more collaborative and forthcoming
Artificial intelligence holds promise for helping doctors diagnose patients and personalize treatment options. However, an international group of scientists led by MIT cautions that AI systems, as currently designed, carry ...
