An international research team, including The Australian National University (ANU), has used the Kepler space telescope in coordination with ground-based telescopes to witness the first moments of a star dying in unprecedented detail. The astronomers witnessed the star dying a long time ago in a galaxy far, far away, as part of a project that ...
New research disputes a long-held view that our earliest tool-bearing ancestors contributed to ancient mammal extinctions in Africa over the last several million years. Instead, the researchers argue that long-term environmental change drove these mammal extinctions, mainly in the form of grassland expansion likely caused by falling atmospheric carbon dioxide (CO2) levels. Tyler Faith, curator ...
University of Sydney astronomers, working with international colleagues, have found a star system like none seen before in our galaxy. Scientists believe that one of the stars — about 8,000 light-years from Earth — is the first known candidate in the Milky Way to produce a dangerous gamma-ray burst, among the most energetic events in ...
A deeper understanding of the wiring and rewiring of the adolescent brain is helping scientists pinpoint why young people are especially vulnerable to mental health disorders in adolescence — and why some are resilient. When Charly Cox was diagnosed in her teenage years with depression and other mental health disorders, what lay ahead for her ...
Flash drought across China is a rapidly intensifying the water deficit process accompanied by high temperatures over a short period of time. Recently, heat extremes have become more frequent in a warming climate, and have substantially increased the occurrence of two types of flash drought, which threatens crop yields and water supply. Dr. Linying Wang ...
If everyone on the planet wanted to eat a healthy diet, there wouldn’t be enough fruit and vegetables to feed the planet, according to a new University of Guelph study. A team of researchers compared global agricultural production with nutritionists’ consumption recommendations and found a drastic mismatch. Study co-author Prof. Evan Fraser, holder of the ...
A potent ozone-depleting substance from eastern China has been found as ongoing significant emissions by researchers from the University of Bristol. The compound, carbon tetrachloride, contributes to the destruction of the Earth’s ozone layer, which protects us from harmful ultraviolet radiation. As a result, the production of carbon tetrachloride has been banned throughout the world ...
Researchers have created the fastest man-made rotor in the world, which they believe will help them in the study of quantum mechanics. At more than 60 billion revolutions per minute, this machine is more than 100,000 times faster than a high-speed dental drill. The findings were published in the journal Physical Review Letters. Tongcang Li, an ...
Skin wrinkles and hair loss are hallmarks of aging. What if they could be reversed? Keshav Singh, Ph.D., and colleagues have done just that, in a mouse model developed at the University of Alabama at Birmingham. When a mutation leading to mitochondrial dysfunction is induced, the mouse develops wrinkled skin and extensive, visible hair loss ...
A new study from the University of Waterloo has found that in some ways, the older you get, the worse your decision-making becomes. The study established that younger children seem to make slightly better decisions than older children. The older children get, the more they tend to ignore some of the information available to them ...
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