Tree cover is key to cooling cities

Many people expect memory to fade as a normal part of aging. Yet some older adults, called SuperAgers, reach their 80s and 90s with memory abilities that match or even exceed those of people in their 50s and 60s. Scientists have spent nearly 20 years identifying the biological, neurological, and psychosocial traits linked to SuperAgers….

In the Miocene, 10 million years ago, the Central American Seaway separated North and South America, leaving the southern continent in what scientists call “splendid isolation.” By 2.8 million years ago, the two continents were joined at the Isthmus of Panama. Mammals stampeded across the new land bridge in both directions. But the species trade…

A PhD student in Sydney has produced cosmic dust from scratch by recreating a small piece of the universe inside a laboratory bottle. The experiment offers new clues about how some of the chemical ingredients associated with life could have developed before Earth even formed. Linda Losurdo, a PhD candidate in materials and plasma physics…

NASA and its industry partners are preparing for next year’s Artemis III demonstration mission by completing new wind tunnel tests on SpaceX’s Super Heavy Version 3 rocket booster. The tests, conducted at NASA’s Ames Research Center in California’s Silicon Valley, focused on better understanding the extreme aerodynamic forces the rocket can experience during re-entry. The…

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