There are three species of bats that eat birds. We know that because we have found feathers and other avian remains in their feces. What we didn’t know was how exactly they hunt birds, which are quite a bit heavier, faster, and stronger than the insects bats usually dine on.

To find out, Elena Tena, a biologist at Doñana Biological Station in Seville, Spain, and her colleagues attached ultra-light sensors to Nyctalus Iasiopterus , the largest bats in Europe. What they found was jaw-droppingly brutal.

Inconspicuous interceptors

Nyctalus Iasiopterus , otherwise known as greater noctule bats, have a wingspan of about 45 centimeters. They have reddish-brown or chestnut fur with a slightly paler underside, and usually weigh around 40 to 60 grams. Despite that minimal weight, they are the largest of the three bat species known to eat birds, so the key challenge in getting a glimpse into the way they hunt was finding sensors light enough to not impede the bats’ flight.

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In 1812, Napoleon Bonaparte led a disastrous military campaign into Moscow. The death toll was devastating: Out of some 615,000 men, only about 110,000 survivors returned. (Napoleon abandoned his army in early December to return home on a sled.) Roughly 100,000 of the casualties died in battle, while as many as 300,000 perished from a combination of the bitter cold of Russia’s notoriously harsh winter, starvation, and disease.

Scholars have debated precisely what kinds of diseases ravaged Napoleon’s troops. New DNA analysis of some soldiers’ remains has revealed the presence of two pathogens in particular, according to a new paper published in the journal Current Biology. The first is Salmonella enterica , which causes paratyphoid fever ; the second is Borrelia recurrentis , which is transmitted by body lice and causes relapsing fever . (A preprint of the paper appeared on bioaRxiv in July.)

“It’s very exciting to use a technology we have today to detect and diagnose something that was buried for 200 years,” said co-author Nicolás Rascovan of the Institut Pasteur. “Accessing the genomic data of the pathogens that circulated in historical populations helps us to understand how infectious diseases evolved, spread, and disappeared over time and to identify the social or environmental contexts that played a part in these developments. This information provides us with valuable insights to better understand and tackle infectious diseases today.”

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The Universe Browser makes some big promises to its potential users. Its online advertisements claim it’s the “fastest browser,” that people using it will “avoid privacy leaks” and that the software will help “keep you away from danger.” However, everything likely isn’t as it seems.

The browser, which is linked to Chinese online gambling websites and is thought to have been downloaded millions of times, actually routes all Internet traffic through servers in China and “covertly installs several programs that run silently in the background,” according to new findings from network security company Infoblox. The researchers say the “hidden” elements include features similar to malware—including “key logging, surreptitious connections,” and changing a device’s network connections.

Perhaps most significantly, the Infoblox researchers who collaborated with the United Nations Office on Drugs and Crime (UNODC) on the work, found links between the browser’s operation and Southeast Asia’s sprawling, multibillion-dollar cybercrime ecosystem , which has connections to money-laundering, illegal online gambling, human trafficking, and scam operations that use forced labor . The browser itself, the researchers says, is directly linked to a network around major online gambling company BBIN, which the researchers have labeled a threat group they call Vault Viper.

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You need to go up —way up —to fully appreciate the changes underway at the White House this week.

Demolition crews starting tearing down the East Wing of the presidential mansion Tuesday to clear room for the construction of a new $300 million, 90,000-square-foot ballroom, a recent priority of President Donald Trump. The teardown drew criticism and surprise from Democratic lawmakers , former White House staffers , and members of the public.

It was, after all, just three months ago that President Donald Trump defended his ballroom plan by saying it wouldn’t affect the existing structure at the White House. “It won’t interfere with the current building,” he said in July. “It’ll be near it but not touching it—and pays total respect to the existing building, which I’m the biggest fan of.”

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Welcome to Edition 8.16 of the Rocket Report! The 10th anniversary of SpaceX’s first Falcon 9 rocket landing is coming up at the end of this year. We’re still waiting for a second company to bring back an orbital-class booster from space for a propulsive landing. Two companies, Jeff Bezos’ Blue Origin and China’s LandSpace, could join SpaceX’s exclusive club as soon as next month. (Bezos might claim he’s already part of the club , but there’s a distinction to be made.) Each company is in the final stages of launch preparations —Blue Origin for its second New Glenn rocket, and LandSpace for the debut flight of its Zhuque-3 rocket. Blue Origin and LandSpace will both attempt to land their first stage boosters downrange from their launch sites. They’re not exactly in a race with one another, but it will be fascinating to see how New Glenn and Zhuque-3 perform during the uphill and downhill phases of flight, and whether one or both of the new rockets stick the landing.

As always, we welcome reader submissions . If you don’t want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

The race for space-based interceptors. The Trump administration’s announcement of the Golden Dome missile defense shield has set off a race among US companies to develop and test space weapons, some of them on their own dime, Ars reports . One of these companies is a 3-year-old startup named Apex, which announced plans to test a space-based interceptor as soon as next year. Apex’s concept will utilize one of the company’s low-cost satellite platforms outfitted with an “Orbital Magazine” containing multiple interceptors, which will be supplied by an undisclosed third-party partner. The demonstration in low-Earth orbit could launch as soon as June 2026 and will test-fire two interceptors from Apex’s Project Shadow spacecraft. The prototype interceptors could pave the way for operational space-based interceptors to shoot down ballistic missiles. (submitted by biokleen)

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OpenAI has acquired Software Applications Incorporated (SAI), perhaps best known for the core team that produced what became Shortcuts on Apple platforms. More recently, the team has been working on Sky, a context-aware AI interface layer on top of macOS. The financial terms of the acquisition have not been publicly disclosed.

“AI progress isn’t only about advancing intelligence—it’s about unlocking it through interfaces that understand context, adapt to your intent, and work seamlessly,” an OpenAI rep wrote in the company’s blog post about the acquisition. The post goes on to specify that OpenAI plans to “bring Sky’s deep macOS integration and product craft into ChatGPT, and all members of the team will join OpenAI.”

That includes SAI co-founders Ari Weinstein (CEO), Conrad Kramer (CTO), and Kim Beverett (Product Lead)—all of whom worked together for several years at Apple after Apple acquired Weinstein and Kramer’s previous company, which produced an automation tool called Workflows, to integrate Shortcuts across Apple’s software platforms.

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In a lawsuit filed on Wednesday, Reddit accused an AI search engine, Perplexity, of conspiring with several companies to illegally scrape Reddit content from Google search results, allegedly dodging anti-scraping methods that require substantial investments from both Google and Reddit.

Reddit alleged that Perplexity feeds off Reddit and Google, claiming to be “the world’s first answer engine” but really doing “nothing groundbreaking.”

“Its answer engine simply uses a different company’s” large language model “to parse through a massive number of Google search results to see if it can answer a user’s question based on those results,” the lawsuit said. “But Perplexity can only run its ‘answer engine’ by wrongfully accessing and scraping Reddit content appearing in Google’s own search results from Google’s own search engine.”

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On the surface, it seems obvious that training an LLM with “high quality” data will lead to better performance than feeding it any old “low quality” junk you can find. Now, a group of researchers is attempting to quantify just how much this kind of low quality data can cause an LLM to experience effects akin to human “brain rot.”

For a pre-print paper published this month , the researchers from Texas A&M, the University of Texas, and Purdue University drew inspiration from existing research showing how humans who consume “large volumes of trivial and unchallenging online content” can develop problems with attention, memory, and social cognition. That led them to what they’re calling the “LLM brain rot hypothesis,” summed up as the idea that “continual pre-training on junk web text induces lasting cognitive decline in LLMs.”

Figuring out what counts as “junk web text” and what counts as “quality content” is far from a simple or fully objective process, of course. But the researchers used a few different metrics to tease a “junk dataset” and “control dataset” from HuggingFace’s corpus of 100 million tweets .

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The end of the dinosaurs was clearly linked to an asteroid impact that brought the Cretaceous period to a close. But the details of their end have remained a matter of debate since the impact crater was discovered. There is a lot of evidence that the impact alone should have been enough to do them in . But the asteroid arrived amid major volcanic eruptions associated with previous mass extinctions. And fossils dating to just before the impact have suggested that dinosaur-dominated ecosystems had become less diverse, making them more prone to collapse.

Now, a new study has revealed that fossils we already know about originated within the last few hundred thousand years before the impact that killed off all dinosaurs except birds. The results indicate that species richness wasn’t likely to be a problem—at least in the neighborhood of the impact itself.

Wyoming vs. New Mexico

Most of what we know about the last days of the non-avian dinosaurs comes from the Hell Creek Formation, rich fossil beds in present-day Wyoming. These not only date from within a few hundred thousand years prior to the impact, but there may be deposits that capture the immediate aftermath of the impact. Beyond this area, which reflects the ecosystem of the northern Great Plains, we have little else. It hasn’t been clear whether the diversity of species present at Hell Creek reflects what was present more globally, or if there were regional differences in ecosystems

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