"Let him who desires peace, prepare for war," wrote the Roman author Vegetius in the 4th century CE. Our bodies, it seems, live by this dictum: Even in times of peace, some cells express high levels of defensive, antiviral ...
Cell & Microbiology
Jun 28, 2023
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10
Dust storms are not only a nuisance for anyone trying to keep their house spick and span, they also pose a very real health hazard and are a major ecological concern. Respiratory problems caused by breathing in dust and other ...
Earth Sciences
Jun 16, 2023
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17
In the tropics, above the equatorial rainforests and oceans, the strong solar radiation hitting Earth propels a stream of warm, moist air far upward.
Earth Sciences
May 29, 2023
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45
A South African plant called a wooly umbrella is completely unrelated to the cannabis plant, yet it makes a slew of the active compounds found in cannabis—cannabinoids—including some that may have new medical uses.
Cell & Microbiology
May 1, 2023
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62
Digital displays comprising organic materials have brought about a new era in consumer electronics, helping to mass produce brighter screens that hold numerous advantages over those made of regular crystalline materials. ...
Condensed Matter
Apr 21, 2023
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32
We often think that our world is an infinite realm comprising great plains, jungles and oceans, teeming with wild animals featured in memorable nature shows like the BBC's Planet Earth. But the first global census of wild ...
Plants & Animals
Feb 27, 2023
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162
When looking at the Earth from space, its hemispheres—northern and southern—appear equally bright. This is particularly unexpected because the Southern Hemisphere is mostly covered with dark oceans, whereas the Northern ...
Planetary Sciences
Feb 23, 2023
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43
One of the striking aspects of the quantum world is that a particle, say, an electron, is also a wave, meaning that it exists in many places at the same time. In a new study, reported today in Nature, researchers from the ...
Optics & Photonics
Feb 23, 2023
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269
Imagine going for an MRI scan of your knee. This scan measures the density of water molecules present in your knee, at a resolution of about one cubic millimeter—which is great for determining whether, for example, a meniscus ...
Condensed Matter
Feb 13, 2023
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167
Arthropods crawl and buzz around us in the wild and on farmlands, on the street and at home, under our floors and in our plumbing systems, even in our food and on our bodies. But while we often are inconvenienced by this ...
Plants & Animals
Feb 6, 2023
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