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Leisure activities, such as reading a book, doing yoga and spending time with family and friends, may help lower the risk of dementia, according to a new meta-analysis published in the August 10, 2022, online issue of Neurology®, the medical journal of the American Academy of Neurology. 

For humans, the early days of the COVID-19 pandemic were a stressful time, marked by fear, isolation, canceled plans and uncertainty. 

Analyzing data from NASA's Hubble Space Telescope and several other observatories, astronomers have concluded that the bright red supergiant star Betelgeuse quite literally blew its top in 2019, losing a substantial part of its visible surface and producing a gigantic Surface Mass Ejection (SME). 

A rare hummingbird, not seen since 2010, has been rediscovered in Colombia’s Sierra Nevada de Santa Marta mountains.

Researchers and entrepreneurs have developed an implant made of collagen protein from pig’s skin, which resembles the human cornea.