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African Sahara 'greening' can alter Northern Hemisphere climate, modeling study finds

African Sahara 'greening' can alter Northern Hemisphere climate, modeling study finds

Africa's Sahara Desert may be considered a vast expanse of barren sand with limited vegetation, an extreme environment for plants and animals to thrive, but life always finds a way. Indeed, vegetation growth in the desert has waxed and waned over millennia, with periods of enhanced growth termed "greening."

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New digital light manufacturing approach resolves common problems associated with 3D printing

New digital light manufacturing approach resolves common problems associated with 3D printing

A team of materials scientists, medical researchers and engineers affiliated with a large number of institutions across Australia has developed a new way to conduct digital light manufacturing that overcomes problems with current methods. In their paper published in the journal Nature, the group describes their new technique, how it works and ways it might be used.

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Not too big, not too small: Why modern humans are the ideal size for speed

Not too big, not too small: Why modern humans are the ideal size for speed

The fastest animal on land is the cheetah, capable of reaching top speeds of 104 kilometers per hour. In the water, the fastest animals are yellowfin tuna and wahoo, which can reach speeds of 75 and 77 km per hour respectively. In the air, the title of the fastest level flight (excluding diving) goes to the white-throated needletail swift, at more than 112 km per hour.

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'Doomsday' Antarctic glacier melting faster than expected, fueling calls for geoengineering

'Doomsday' Antarctic glacier melting faster than expected, fueling calls for geoengineering

New studies about the Thwaites Glacier, also called the "Doomsday Glacier," have sparked a conversation about geoengineering as a climate change solution.

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Something to sniff at: Lab-engineered receptors illuminate odor detection

Something to sniff at: Lab-engineered receptors illuminate odor detection

A team of researchers led by Duke University, the University of California San Francisco, and the Beckman Research Institute of the City of Hope have engineered odorant receptors to reveal the molecular basis of odor discrimination.

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Biochemists create protocells to explore how lipids may have led to first cell membranes

Biochemists create protocells to explore how lipids may have led to first cell membranes

A team of biochemists at the University of California, San Diego, working with a group of biochemical engineers from the University of California, Los Angeles, has found that the development of short lipids might have led to the development of the first cell membranes on early Earth.

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Ancient mud reveals Australia's burning history over the past 130,000 years—and a way forward in current fire crisis

Ancient mud reveals Australia's burning history over the past 130,000 years—and a way forward in current fire crisis

Increased land management by Aboriginal people in southeastern Australia around 6,000 years ago cut forest shrub cover in half, according to our new study published in Science of fossil pollen trapped in ancient mud.

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Report reveals how the state of our oceans is intrinsically linked to human health

Report reveals how the state of our oceans is intrinsically linked to human health

A study published in the journal One Earth explores how marine biodiversity conservation, human health and well-being are connected. The results suggest that marine protected areas can be good for both planet and people.

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Geodynamic mantle-flow model explains deformation of continental crust block in North China

Geodynamic mantle-flow model explains deformation of continental crust block in North China

Cratons are fascinating yet enigmatic geological formations. Known to be relatively stable portions of the Earth's continental crust, cratons have remained largely unchanged for billions of years. Although cratons have survived many geological events, some are undergoing decratonization—a process characterized by their deformation and eventual destruction.

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Fossil of huge terror bird offers new information about wildlife in South America 12 million years ago

Fossil of huge terror bird offers new information about wildlife in South America 12 million years ago

Researchers including a Johns Hopkins University evolutionary biologist report they have analyzed a fossil of an extinct giant meat-eating bird—which they say could be the largest known member of its kind—providing new information about animal life in northern South America millions of years ago.

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