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https://www.livescience.com/ While trekking through the tropical forests of northern Vietnam, scientists unexpectedly discovered wasp nests that glow fluorescent green under ultraviolet light. The nests, which look like a cluster of hexagonal cells, were built by several species of paper wasp, all belonging to the genus Polistes. The wasps seal off the underside of the hexagonal cells with so-called cocoon caps made of silken fibers, which protect the growing larvae within the nest. And for reasons yet unknown, these cocoon caps emit a strong greenish-yellow glow when exposed to UV light between 360 and 400 nanometers in wavelength. "We were very surprised to find such strongly fluorescent biomatter," senior author Bernd Schöllhorn, a professor of chemistry at the University of Paris, told Live Science in an email. The team initially set out to discover unknown fluorescent insects in tropical rainforests, so they'd come equipped with UV LED torches. "We were not searching for wasp nests in particular," Schöllhorn said. "To our knowledge, this phenomenon has not been observed in the past, neither by scientific researchers nor by any photographers." When exposed to white light, the nest cocoon caps appear bright white. Their verdant fluorescence begins to appear under normal daylight, and at night under a UV torch, the bright green glow of the nests can be seen up to 65 feet (20 meters) away, the authors wrote in their report, published Tuesday (Aug. 24) in the Journal of the Royal Society Interface. The authors compared the nests of these Vietnamese wasps to those of two other Polistes species: one from the Amazonian rainforest of French Guiana and one from a temperate region of southern France. They found that all the wasps' cocoon caps showed similar fluorescent properties, although their glows varied in both intensity and the range of UV light that elicited the strongest reaction. Having discovered these mysterious glowing nests, the researchers now wonder whether the fluorescence serves any specific purpose for the wasps. On this front, they have several ideas. It may be that the glowing nests act as homing beacons for wasps flying back to their nests at twilight, or perhaps wasps of different species use subtle variations in fluorescence to differentiate their colonies' nests from those of nearby colonies. Or it may be that the fluorescent cocoon caps protect wasp larvae from harmful UV rays that would otherwise disrupt the larvae's development. Past studies suggest that wasp larva development is heavily influenced by the relative length of day and night; therefore, the glowing cocoon caps may help to control how much daylight reaches the larvae as they grow into pupae, the authors wrote. "The last hypothesis is my favorite," Schöllhorn told Live Science. The Vietnamese Polistes species usually breed during the rainy season, between June and August, when cloud cover blocks a significant amount of visible light from reaching the nests but still lets a fair amount of UV light slip through. By setting the cocoon caps aglow, this residual UV light may increase the wasp larvae's overall light exposure during development, thus influencing how they grow, the authors wrote in the study. In future studies, the authors want to determine the chemical structures of the fluorescent compounds in the nests. They also plan to see if the compounds might have any potential uses in biological research or medicine; for instance, fluorescent compounds are often used to label molecules in the body.

https://www.bbc.com/news The US Supreme Court has ordered President Joe Biden to reinstate a policy of making asylum seekers stay in Mexico while claims are processed. The policy was put in place by his predecessor, Donald Trump, as part of his measures to restrict the number of asylum seekers entering the US. But Mr Biden suspended it on his first day of office. Rights groups say the policy subjects migrants to dangerous conditions in Mexico's border towns. On Tuesday, the Supreme Court rejected a bid to block a Texas-based judge's ruling requiring the government to revive the Migrant Protection Protocols (MPP) policy. It said the Biden administration had "failed to show a likelihood of success" on the claim that rescinding the policy was not "arbitrary and capricious". The Biden administration can make another attempt to try and end the policy. The American Civil Liberties Union has called on Mr Biden to try again and provide a "fuller explanation" for why the policy should be terminated. Are more migrants crossing US-Mexico border than ever? Migrant girl held by US for 531 days and counting Some 70,000 migrants were enrolled in the MPP policy. A month after Mr Biden's inauguration, his administration began to gradually process these tens of thousands of people waiting in Mexico, allowing them into the US while their cases are heard. It's not yet clear how many people will be affected by the ruling. The US Homeland Security department said it regretted the Supreme Court's decision and would "continue to vigorously challenge it".

A new Ryzen Chipset Driver update was released yesterday, version 3.08.17.735, that patches "critical security flaws" in the Platform Security Processor driver. AMD has not revealed the exact details of the security flaws that were patched, but we presume they could be related to a couple of current AMD flaws. Right now, AMD has two vulnerabilities affecting all Ryzen based CPUs listed on AMD's website. One of these includes a Speculative code store bypass and floating-point value injection vulnerability, which can cause Ryzen CPUs to leak data when processing overwritten instructions when the CPU processes incorrect floating point numbers. The second vulnerability also relates to data leakage, called the Transient Execution of Non-canonical Accesses. This vulnerability can allow data leakage when the CPU executes a non-canonical load and stores those numbers with just 48 address bits or lower. We're not completely sure these are the flaws AMD's new PSP driver has fixed. But either way, it would be best to update your Ryzen chipset drivers to this new version to insure you aren't exposed to unknown vulnerabilities. Especially when AMD classifies these security flaws as "critical."

Post-apocalyptic wingnuts who worship a nuke? I've heard that before. What's different about the Cult of the Holy Detonation is that they worship a nuclear explosion held in stasis, a miraculous boom that never actually goes boom. Their god could be a potential power source or weapon, and obviously a bunch of mutant yahoos can't be trusted with it. This is where you come in. Wasteland 3's second and final narrative expansion sends you to the Cheyenne Mountain complex the Cult of the Holy Detonation calls home. According to developers inXile, "Your squad of Rangers will be tested like never before in objective-based encounters that put a creative spin on the already deeply tactical turn-based combat. As they face overwhelming odds, the Rangers will need to shut down reactors, clear ventilation systems, and engage defensive countermeasures to stem an unending tide of dangerous mutants and machines within the dilapidated military bunker." Cult of the Holy Detonation adds new weapons and armor as well as more bad guys to Wasteland 3. It'll be out on October 5, available separately, as part of the expansion pass, or in a bundle collecting the base game, the previous Battle of Steeltown expansion, and the Colorado Survival Gear DLC to make up the Wasteland 3 Colorado Collection.

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