Primordial black holes (PBHs) don't exist as far as we know. But if they did, these hypothetical objects would have formed in the early universe rather than from dying stars, and they may even make up dark matter. That's ...
Researchers have demonstrated a technique that uses a laser to produce a plasma beam antenna capable of transmitting radio waves. The article, "Laser-Induced-Plasma-Filament Antenna Transmitting 30 MHz VHF," is published ...
Optics & Photonics
19 minutes ago
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Epithelial cells form the body's frontline barriers, helping keep microbes, toxins and other harmful substances out. Yet these protective cells are constantly exposed to threats, including microbial infections. Some bacteria ...
Cell & Microbiology
39 minutes ago
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Deep space travel comes with a huge potential downside—radiation exposure that can kill an astronaut either quickly or slowly over time if not managed correctly. But what exactly does that mean, and is there any way to handle ...
Astronomy
58 minutes ago
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Carbon quantum dots (CQDs) are fluorescent carbon nanomaterials with potential applications in sensing, optoelectronics, displays, anticounterfeiting and environmental technologies. Their optical properties can be adjusted ...
Nanophysics
19 minutes ago
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When mothers do not have the necessary resources to raise their children, this adversity causes substantial stress that can hinder caregiving and lead to postpartum depression. In a new study in JNeurosci, Millie Rincón-Cortés ...
Plants & Animals
39 minutes ago
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Many complex quantum systems rapidly lose the recognizable patterns of their initial states as their components interact. To describe patterns of regular and chaotic motion in specific systems, physicists can construct a ...
One of the hardest challenges in wildlife conservation arises when the habitat of a species in need of protection overlaps with land used by humans. Wolves and bears can kill livestock, elephants can damage homes and other ...
Ecology
1 hour ago
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The Nobel Prize in medicine was awarded Monday to U.S. psychiatrist and neurologist Karl Deisseroth and German scientists Peter Hegemann and Georg Nagel for their pioneering work in the neuroscience field of optogenetics.
Other
7 hours ago
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Water does not flow only through rivers on the ground. Vast quantities of water also move through the atmosphere, carried by winds from oceans and land before eventually falling as precipitation hundreds or even thousands ...
Earth Sciences
1 hour ago
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