Scientists discover supernova that outshines all others

Supernova illustration (stock image).Credit: © magann / Adobe Stock A supernova at least twice as bright and energetic, and likely much more massive than any yet recorded has been identified by an international team of astronomers, led by the University of Birmingham.advertisement The team, which included experts from Harvard, Northwestern University and Ohio University, believe the […]

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Earth-size, habitable-zone planet found hidden in early NASA Kepler data

Exoplanet illustration (stock image; elements furnished by NASA).Credit: © sdecoret / Adobe Stock A team of transatlantic scientists, using reanalyzed data from NASA’s Kepler space telescope, has discovered an Earth-size exoplanet orbiting in its star’s habitable zone, the area around a star where a rocky planet could support liquid water.advertisement Scientists discovered this planet, called Kepler-1649c, […]

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When three species of human ancestor walked the Earth

Homo erectus word cloud (stock image).Credit: © ibreakstock / Adobe Stock An international team, including Arizona State University researcher Gary Schwartz, have unearthed the earliest known skull of Homo erectus, the first of our ancestors to be nearly human-like in their anatomy and aspects of their behavior.advertisement Years of painstaking excavation at the fossil-rich site of Drimolen, nestled […]

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COVID-19 pandemic may exacerbate childhood obesity

Public health scientists predict that school closures due to the COVID-19 pandemic will exacerbate the epidemic of childhood obesity in the United States. Andrew Rundle, DrPH, associate professor of epidemiology at Columbia University Mailman School of Public Health, and colleagues expect that COVID-19-related school closures will double out-of-school time this year for many children in […]

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Traces of ancient rainforest in Antarctica point to a warmer prehistoric world

Antarctica (stock image).Credit: © evenfh / Adobe Stock Researchers have found evidence of rainforests near the South Pole 90 million years ago, suggesting the climate was exceptionally warm at the time.advertisement A team from the UK and Germany discovered forest soil from the Cretaceous period within 900 km of the South Pole. Their analysis of the […]

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Stress thwarts our ability to plan ahead by disrupting how we use memory

New research from Stanford University has found that stress can hinder our ability to develop informed plans by preventing us from being able to make decisions based on memory.advertisement “We draw on memory not just to project ourselves backward into the past but to project ourselves forward, to plan,” said Stanford psychologist Anthony Wagner, who […]

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Cocky kids: The four-year-olds with the same overconfidence as risk-taking bankers

Overconfidence in one’s own abilities despite clear evidence to the contrary is present and persistent in children as young as four, a new study by the University of Sussex Business School has revealed.advertisement The cognitive bias has been consistently observed among a number of professions including business executives, bankers and physicians across different countries and […]

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Time to encourage people to wear face masks as a precaution, say experts

Man wearing face mask (stock image).Credit: © pondpony / Adobe Stock It’s time to encourage people to wear face masks as a precautionary measure on the grounds that we have little to lose and potentially something to gain, say experts in The BMJ today.advertisement Professor Trisha Greenhalgh at the University of Oxford and colleagues say despite limited evidence, […]

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Mimicking cancer’s evasive tactics, microparticles show promise for transplant rejection

Organ transplant word cloud concept illustration (stock image).Credit: © Kheng Guan Toh / Adobe Stock Inspired by a tactic cancer cells use to evade the immune system, University of Pittsburgh researchers have engineered tiny particles that can trick the body into accepting transplanted tissue as its own.advertisement Rats that were treated with these cell-sized microparticles developed […]

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