Exploring the moon will require rovers that can think for themselves
NASA is planning to send three small rovers to the moon with a single instruction: Work out among yourselves how to explore a patch of ground.
21:23
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כתבות אחרונות מאתר 'Phys'
Topical clove oil for canine sarcoptic mange promises faster, plant-based treatment
Canine sarcoptic mange (scabies) is a skin condition in which microscopic mites (Sarcoptes scabiei) infest dogs' skin. The condition is contagious and zoonotic and can be difficult to detect. If left untreated, it can cause bleeding sores, malnutrition, emaciation and secondary bacterial infections that may eventually lead to a dog's death.
20:55
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Early-universe plasma may have stopped dark photons from heating cosmos
A new paper published in Physical Review Letters reveals that a leading dark matter candidate—the hypothetical "dark photon"—would not have heated the early universe as previously thought. The finding opens a vast region for experimental searches and could change the hunt for dark matter.
20:00
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Neptune's tiny moons tell the story of Triton's destructive capture
Neptune's moon and ring system stand out among the giant planets because of the strange imbalance between its one very large moon and its many tiny moons. Its largest moon, Triton, makes up more than 99% of the mass of all satellites orbiting the planet while orbiting retrograde compared with Neptune's rotation. The predominant theory is that Triton is a captured Kuiper Belt object that caused a major disruption in Neptune's early moon system. Now, a new study published in Science Advances provides spectroscopic evidence to support this theory.
18:24
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One-off campus programs fall short on preventing sexual violence, review finds
A recent National Student Safety Survey found that one in six students attending Australian universities had been sexually harassed and one in 20 had been sexually assaulted since starting university.
17:04
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Tungsten may suffer more radiation damage in fusion reactors than expected
Fusion reactors, devices that generate energy by fusing light atomic nuclei at extremely high temperatures, could contribute to ongoing efforts aimed at producing electricity more sustainably. The extreme environment inside these devices, however, can damage materials that surround the superheated, electrically charged plasma where the nuclear fusion reaction takes place.
15:46
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Nonrepeating photonic crystal may enable more tunable, reliable semiconductor lasers
Over the past two decades, photonic-crystal surface-emitting lasers (PCSELs) have shown promise as a type of advanced semiconductor laser useful in defense- and aerospace-related applications. Typically, these devices are made with photonic crystal patterns that repeat across the area of the device. But new research from the lab of electrical and computer engineering professor Kent Choquette has demonstrated a quasi-periodic photonic-crystal surface-emitting laser (QPCSEL). Fabricated with their buried dielectric platform, the group's device highlights a new avenue for creating tunable, more reliable semiconductor lasers. Their findings appear in Applied Physics Letters.
15:03
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Minnesota iron ore could be key to sustainable and lower cost semiconductor
For the first time, researchers at the University of Minnesota Twin Cities have demonstrated that the low-purity iron ore prevalent in Minnesota can be used to create semiconductor-quality iron sulfide, also known as "fool's gold" or pyrite. This discovery could have cost-effective and sustainable applications in future electronic devices and other technologies.
15:03
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Four more belugas arrive at Chicago aquarium from shuttered Canadian theme park
Four more belugas have arrived at a Chicago aquarium as part of a plan to move Canada's last remaining captive whales from a shuttered theme park to aquariums in the United States and Spain.
14:45
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Shackled men in 2,600-year-old Greek mass graves were likely locals, archaeologists find
In 2016, archaeologists working at the Phaleron Burial Ground, part of the ancient Attica region, uncovered an astonishing sight: three mass graves dating to the 7th and 6th centuries BCE containing the skeletons of 79 adult men. Many were bound together with metal shackles.
14:29
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