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Phys.org / Ozone depletion began decades before discovery of ozone hole, scientists find
The Antarctic ozone hole was discovered in 1985, when scientists observed a severe depletion in Earth's protective layer of stratospheric ozone. Industrial chemicals known as chlorofluorocarbons (CFCs), then widely used as ...
Tech Xplore / Team uses 3D printing to develop zinc-ion hybrid battery with seven times more energy
Storing solar and wind energy to meet the increasing power needs of the electrical grid calls for devices that can deliver power quickly, recharge quickly and last for decades at low cost. A new study led by UCLA has uncovered ...
Phys.org / Ultra-faint galaxy discovered near Andromeda may be 12.5 billion years old
A new ultra-faint dwarf galaxy has been discovered in the vicinity of Andromeda (M31), the Milky Way's large neighboring galaxy. The new study, published in Astronomy & Astrophysics suggests that the galaxy, named And XXXVI, ...
Phys.org / Analyzing avalanches on asteroid Vesta offers new method for understanding regolith processes
A study conducted at the Institut de Physique du Globe de Paris uses images from NASA's Dawn mission and a Bayesian inversion of the Hapke photometric model to analyze avalanches and ejecta deposits on the asteroid Vesta. ...
Phys.org / There may be 3 times more insect species than previously thought
A new estimate of insect species globally finds that there may be 8 million to 14 million more species than people thought, with few of them discovered.
Phys.org / A goat's tooth may have solved a 100‑year debate about ancient Greek farming
The agricultural economy was the backbone of wealth in ancient Greece. Food brought people together, whether in smaller groups at a wine-drinking symposium or the entire community in a sacrificial feast of epic proportions. ...
Tech Xplore / Short training helps people spot AI faces in the battle against deepfake fraud
Humans have been successfully trained to spot AI-generated faces in a study led by researchers at the Australian National University (ANU) Emotions and Faces Lab. The study, "Training Humans to Detect AI-generated Faces," ...
Phys.org / Red-tailed hawks maintain flight performance despite missing feathers
Red-tailed hawks can compensate for feather loss during molt by subtly changing their wing and tail movements, according to a new study by University of California, Davis, researchers in the College of Engineering and the ...
Phys.org / When mitochondria grow abnormally long, leaked RNA may activate anti-tumor immune responses
Researchers from the University of Osaka have demonstrated that mitochondrial hyperfusion, when induced by low levels of DRP1 or cellular stress, activates an immune response through the RIG-I–MAVS pathway. Dependent on the ...
Phys.org / Childbirth is not uniquely difficult to humans
The tight fit of a baby's head through a mother's birth canal, which causes great difficulty in childbirth, is not unique to humans, as previously understood. Instead, some small-bodied primate babies have heads almost twice ...
Medical Xpress / Wireless biodegradable sensor could help injured knees heal without dangerous overloading
A biodegradable pressure sensor could help people with knee injuries exercise and heal faster, University of Connecticut researchers report in Science Advances. The knee can take a great deal of abuse, thanks to the cartilage ...
Phys.org / Deadly Venezuela earthquakes raise concern in tremor-prone California
In the aftermath of back-to-back earthquakes in northern Venezuela, which by Friday had killed more than 500 people and left thousands injured, experts in resilience planning have emphasized the increasing importance of disaster ...
