Study finds evidence for existence of elusive ‘metabolon’

HeLa cervical cancer cells (stock image).Credit: © heitipaves / Adobe Stock For more than 40 years, scientists have hypothesized the existence of enzyme clusters, or “metabolons,” in facilitating various processes within cells. Using a novel imaging technology combined with mass spectrometry, researchers at Penn State, for the first time, have directly observed functional metabolons involved in […]

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Volcanic carbon dioxide emissions helped trigger Triassic climate change

Volcanic eruption (stock image).Credit: © Fotos 593 / Adobe Stock A new study finds volcanic activity played a direct role in triggering extreme climate change at the end of the Triassic period 201 million year ago, wiping out almost half of all existing species. The amount of carbon dioxide released into the atmosphere from these volcanic […]

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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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