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Acting Editor in Chief Elizabeth Quill explores the science behind children's play and how kids like to mimic the same things adults do.
Given a choice between fantasy play and doing the things that adults do, children prefer reality-based tasks, studies suggest.
Some unusual finds from thousands of years ago are actually toys and children’s attempts at mimicking adult craftwork.
Skyrmions are tiny magnetic swirls that are hard to undo and may be perfect for miniaturizing electronics.
Rising CO2 in freshwaters may change how predators and prey interact in lakes.
Heat from asteroid bombardment during Earth’s earliest eon wasn’t too intense for life to exist on the planet, a new study suggests.
If an ancient jaw found in an Israeli cave belongs to Homo sapiens, the humans left Africa tens of thousands of years earlier than we thought.
Hovering 3-D images pave the way for futuristic displays that could be used for education or entertainment.
X-rays from a neutron star collision have been getting brighter, and scientists are debating why.
Three types of high-energy cosmic particles could all have the same source: black holes in galaxy clusters.
Mars was once lush with water. A new analysis of Martian climate data shows a mechanism that might have helped dehydrate the planet.
Scientists have cloned two baby macaque monkeys with the same technique used to clone Dolly. The research could help advance the cloning of other species.
A hairlike appendage sticking out of brain cells may be much more important in the brain than scientists realized.
Nighttime lighting prolongs time that birds can pass along virus to mosquitoes that bite people.
Bacteria use a modified form of cellulose to form sticky networks that can coat various surfaces.
Hunter-gatherers in the forests of the Malay Peninsula prove more adept at naming smells than their rice-farming neighbors, possibly because of their foraging culture.
Another study finds that labor lasts longer than is traditionally taught — an insight that could mean fewer unnecessary cesarean deliveries.
Two ancient Egyptian mummies known as the Two Brothers had the same mother, but different dads.
A new approach to flu vaccine development makes influenza virus extra sensitive to a powerful antiviral system.
Higher than normal temperatures turned normally benign bacteria lethal, killing hundreds of thousands of the saiga antelopes.
A researcher used old and new specimens to discover 18 species of pelican spiders from Madagascar.
In 1968, scientists predicted that the world would soon use nuclear fusion as an energy source.
Reversible textile keeps skin at a comfortable temperature with thin layers of carbon and copper.
Reviews & Previews
In a new book, an artificial intelligence expert explores AI’s past, present and future.
A coffee-table book explores how humans have tried to understand death through the ages.
Letters to the Editor
Readers had questions about a supernova that continuously erupts, the difference between dark energy and dark matter, and more.
Scientists have figured out how cells quickly pack up their chromosomes before a cell divides.