2026-07-18 18:00:29
Welcome back to the Abstract! Here are the studies this week that loosed arrows, made sacrifices, prepared for battle, and took the hit.
First, a bunch of ancient princesses were buried with weapons. Did they know how to use them? You bet! Then: a deadly Inca ritual, animal war games, and the mystery of the dinosaur-killer.
As always, for more of my work, check out my book First Contact: The Story of Our Obsession with Aliens, or subscribe to my personal newsletter the BeX Files.
Egyptian princesses who lived nearly 4,000 years ago were skilled archers and likely handled other deadly weapons, including maces and daggers, according to a new study that revisits their mummified bones and upends expectations about gender in the ancient world.
For more than a century, archaeologists have puzzled over the remains of ancient royals entombed in the Amenemhat II pyramid complex located in Egypt’s Dahshur necropolis.
Four of these mummified bodies have been identified as the daughters of the pharaoh Amenemhat II, known as Princess Ita, Princess Khenmet, Princess Itaweret, and Princess Sathathormeryt.
These women were buried with weapons, including bows and maces, which are grave goods normally found in male burials; Princess Ita’s tomb also contained a stunning dagger. Another pair of royals, Princess Noub-Hotep and her father King Hor, are buried in the same complex with weapons in their graves, and were also part of the study.
The presence of weaponry in the graves has led to a debate over whether the items were selected for symbolic purposes, or if the women used them in life. To resolve this question, researchers conducted a thorough re-examination of the mummified remains using osteological analysis, X-ray imaging, and advanced spectroscopy.
The results revealed that all of these individuals showed signs of bodily strain associated with repeated use of bows and melee arms, suggesting that not only King Hor, but the five princesses, knew their way around a weapon.
Pronounced muscle attachments across the mummified upper limbs “indicates repetitive, high-intensity actions consistent with archery and weapon use,” said researchers led by Zeineb Hashesh of the University of Beni-Suef.
“This evidence directly informs long-standing debates about the function of weapons in female burials,” the team continued. “Rather than purely symbolic objects, these items appear to have been actively used, as reflected in skeletal adaptations such as asymmetry, muscle hypertrophy, and metacarpal modification. Princess Noub-Hotep provides a particularly clear example, where skeletal changes align with the presence of arrows in her burial.”
In other words, these women don’t appear to have been the damsels in distress depicted in traditional princess stories. The mummification of their bare arms hints that they did, in fact, bear arms.
In other news…
We’re not wrapped up with the mummy beat just yet. In another new study, scientists took a fresh look at the mummified bodies of three young victims of human sacrifice in the Inca empire, who were ritually killed as part of a ceremony called the Capacocha in the 15th century.
“Selected for their perceived purity and exceptional beauty, the individuals chosen for sacrifice were either taken from their home communities or offered by local authorities” and “undertook a long, final journey to sacred mountain summits, where they were ritually killed,” said researchers led by Verónica Silva Pinto of the University of València.
The results revealed that the Boy of Cerro El Plomo, a child of about 8-years-old discovered at an elevation of nearly 18,000 feet, was likely killed by blunt force trauma to the head, and not by hypothermia or strangulation as previously proposed. Using advanced imaging, researchers discovered a cranial lesion that may have been inflicted by “a blunt-lobed lithic star-shaped mace,” according to the study.
Meanwhile, the team found that two female victims found at Cerro Esmeralda, aged roughly 9 and 18, had an indeterminate cause of death, despite strangulation being put forward as the likely explanation.
In all three cases, the victims were brought from distant homelands and traveled for several months prior to their killings, according to isotopic analysis of the elements in their remains. The enormous effort invested in these pilgrimages, combined with the careful placement of the bodies in special costumes and poses after death, demonstrate the significance of the Capacocha in Inca statecraft and cosmology.
Humans have a rather catastrophic habit of getting into wars, but at least we aren’t alone in our military misery. A diverse array of species—from ants, to woodpeckers, to chimpanzees—also engage in violent intergroup conflicts that require careful preparation for success.
Scientists have now helpfully pulled together a comprehensive review of how animals ready themselves for battle in part “to provide insights into our own conflict ancestry,” according to their new study.
Many behaviors are eerily similar to our own: Chimpanzees surveil rivals from hilltops, patrol perimeters, and march in single file. It is also common for animals to invest a lot of time and energy into sizing up their opponent’s force, including by carefully monitoring scent marks.
Some animals “travel considerable distances to eavesdrop on the contests of other groups to gather social information that is used only days or weeks later, as seen in acorn woodpeckers (Melanerpes formicivorus),” said study authors Josh Arbon and Andrew Radford of the University of Bristol.
But by far the most memorable prep work comes from the Nevada termite, which erects “faecal fortresses” as barriers to intrusion by larger colonies. For all the fancy weaponry we’ve devised as humans—from guns, to nukes, to drones—how did we overlook the ultimate obstacle: poop barricades?
Deadly princesses, human sacrifice, widespread warfare. Let’s close with something lighter: The apocalyptic extinction of almost all life on Earth. It’s time to revisit the longstanding mystery of the dinosaur-killing space rock that smashed into our planet some 66 million years ago, causing the Cretaceous-Paleogene (K-Pg) mass extinction that wiped out about 75 percent of all animal and plant life at the time.
For decades, scientists have debated the nature of this epic deathbringer, which is known as the Chicxulub impactor. Now, a team has narrowed down the possible source to a class of asteroid called carbonaceous chondrites by studying nickel isotopes embedded around the impact crater in Mexico’s Yucatán Peninsula.
The identification of the impactor as a likely carbonaceous chondrite “is possible given nickel’s high abundance in primitive meteorites compared to the Earth’s crust and the distinct isotope compositions they record,” said researchers led by Georgy V. Makhatadze of Université Paris Cité.
“Our study highlights the extraterrestrial origin of the K-Pg mass extinction and the isotopes of nickel as a well-suited tool to characterise the nature of extraterrestrial material on Earth,” the team concluded. “Finally, it opens the door for further research into the connection between the impact and the mass extinction.”
Mummies, war, and doomsday. You’re welcome for the beach reads.
Thanks for reading! See you next week.
2026-07-18 00:15:53
404 Media is turning three years old! We've come a long way with your support, so let's hang out.
We're throwing TWO separate events to celebrate: A live taping of the podcast and a special night of talks on Sept. 3, and a big open-bar party on Sept. 4. Subscribers at the Supporter level get free and discounted access to both events!
Check your membership status or become a paid supporter of our work here.
On Thursday, Sept. 3, meet us at WNYC's Greene Space for 404 MEDIA LIVE! We'll discuss what we've accomplished in the past year, and what's next for our independent, human-made journalism. We'll also welcome a few very special friends to the stage: Matthew Gault joins us for a chat about AI datacenter resistance, and The Abstract's Becky Ferreira hits us with the coolest science to come out this year so far.
Supporters get 50% off their ticket to 404 MEDIA LIVE! Don't forget to check your membership status here and subscribe as a paying member for access to 50% off a full price in-person ticket.
Can't make it in person in NYC? Join us on the livestream! Grab an access ticket, donate what you're able, and watch for the link we'll send to your inbox before the event.
The next night, join us for a bash to celebrate our three year anniversary at Threes Brewing Gowanus. Have a beer, wine or seltz on us, plus light bites throughout the night. Buying a ticket to 404 MEDIA LIVE! gets you 50% off a ticket to the afterparty Friday night. Supporters get in to the party FREE!
All of us—Sam, Emanuel, Jason, and Joseph—will be there to celebrate 404 Media growing another year. We love these parties because it's a chance to connect with the people who make all of this possible: you, our subscribers.
Thank you for all the fun you've helped us have this year.
We can't wait to celebrate with you this year.
Questions? Email [email protected]
2026-07-18 00:07:19
This is Behind the Blog, where we share our behind-the-scenes thoughts about how a few of our top stories of the week came together. This week, we discuss AI music, slop bowls, and the endless quest for optimization.
EMANUEL: We’ve used Behind the Blog a few times at this point to pull the curtain on our story selection process. Usually, we do this when we explain the reasoning behind the decision to write a story we already published, but today I want to talk about a story I didn’t write (yet).
For the past few months I’ve been looking at a new and strange type of AI generated nonconsensual image on X.
2026-07-17 23:35:37
The Department of Homeland Security (DHS) plans to pay data broker giant Thomson Reuters $125 million for access to its databases of personal data — which includes peoples’ names, addresses, Social Security numbers, ethnicity, social media posts, and geolocation information — to help Immigration and Customs Enforcement (ICE) investigate what it describes as “voters fraud” and immigration fraud, according to procurement documents reviewed by 404 Media. The document says Thomson Reuters is able to let ICE continuously monitor millions of people and entities of interest.
The news comes after President Trump held a conspiracy-laden and unhinged press conference about election security on Thursday, setting the stage for potentially undermining the legitimacy of the upcoming midterm elections. It also follows ICE fatally shooting 2 people in a week.
2026-07-17 02:00:10
Astronomers have detected an atmosphere around a rocky exoplanet in the habitable zone of its star for the first time in history, signalling a major breakthrough in the search for alien life, according to a study published on Thursday in Science.
The planet, known as LHS 1140-b, is about 5.6 times more massive than Earth and orbits a small dwarf star about 48 light years from our solar system. While scientists have discovered atmospheres around many giant gas planets in our galaxy—and even a few rocky exoplanets outside the habitable zone—the new detection of helium in the skies of LHS 1140-b marks the first direct evidence that a habitable-zone rocky world can host an atmosphere, which is a critical factor for assessing their potential to support life.
“For rockier Earth-like planets, it has been a huge challenge in the field to detect any atmospheres at all,” said Collin Cherubim, a NASA Hubble Fellow at the University of Chicago, in a call with 404 Media. “This has been a huge question in the field that so much time and energy has been devoted to answering.”
The new discovery “is really the first claim ever of any rocky exoplanet atmosphere in the habitable zone that could potentially have liquid water and really support life,” added Cherubim, who conducted the research while he was a PhD student at Harvard University. “That's what sets it apart and makes it really exciting.”
Scientists have previously inferred that some rocky exoplanets in the habitable zone might have atmospheres based on indirect evidence, such as measurements that show that their day and night temperatures are more moderate than expected, which could be explained either by an atmosphere, or other planet-wide effects. However, spotting an atmosphere around these rocky worlds is tricky because they tend to be so small compared to their stars, which is a challenge for precision observations.
Cherubim came at the problem with a new approach: He first developed theoretical models of rocky exoplanets that focused on mass fractionation, a process by which lighter molecules and atoms in the atmosphere escape into space, while heavier ones are left behind. These simulations predicted a new type of planet with thick skies closer to the surface, and a thinner upper atmosphere that allows helium to escape to space.
“Hydrogen is the lightest element and it's the easiest to blow off into space,” Cherubim explained. “My model was predicting that if your planet is in this sweet spot where you're blowing enough hydrogen away, but not too much that you're dragging helium, which is a bit heavier, along with it, then you can actually create a helium-dominated atmosphere over time.”
“This is a newly-predicted class of planets, which should have very unique chemistry,” he added.
Cherubim realized that this escaping helium might be detectable from Earth, and that the LHS 1140 system would be a prime candidate to test out the hypothesis. To that end, the team observed LHS 1140-b and another planet in the system, LHS 1140-c, over the course of 2024 and 2025 with the Warm Infrared Echelle (WINERED) Spectrograph on the Magellan Observatory in Chile.
The 2024 results revealed a strong signal of helium at LHS 1140-b, but no detection in 2025, which may mean that the helium escape varies over time. The team predicts that the planet has probably had its atmosphere for billions of years. The other planet, LHS 1140-c, did not show any signs of an atmosphere, which was also expected based on its orbit and characteristics.
The momentous discovery proves that atmospheres can exist around rocky worlds, including around dwarf stars, which are far more common than more massive stars like the Sun. Cherubim and his colleagues think it’s quite likely that LHS 1140-b has large amounts of liquid water on its surface, another key ingredient for life as we know it on Earth.
“When we think about habitability, we think about three high-level things,” Cherubim said. “We think the planet needs to be rocky for the most part. It can't be a gas-rich thing where the surface is molten, or like Jupiter where it's just all gas. It's got to be the right temperature to support surface liquid water, at least for Earth-like life, and it needs an atmosphere to hold that water in and to shield the surface from radiation.”
“With this discovery, we now know LHS 1140-b has all three of those things, which is really exciting,” he added. “And it just happens to be a very nearby system to Earth, so it's very accessible.”
Whether alien life exists on LHS 1140-b remains an open question, but scientists have already been looking for signs of life, known as biosignatures, in its skies using the Hubble Space Telescope and the James Webb Space Telescope. So far, the search hasn’t turned up any obvious signs of life, but future efforts may be able to peer at this world in more detail.
“I think this is the best place to be looking for biosignatures,” Cherubim concluded. “We're really excited to see what comes out of that.”
2026-07-16 21:56:48
Police departments around the country have used Flock cameras at least hundreds of times to search for specific people, not cars, using searches such as “heavy-set male with a black and white hat,” “person on skateboard,” and “person wearing orange vest and construction hat,” according to data reviewed by 404 Media. Sometimes searches reference a target’s race or signs of their political affiliation.
The searches highlight that while most people associate Flock cameras with scanning license plates and tracking vehicles, some of the cameras are also capable of following the movements of particular people or groups of people. Flock’s nationwide network of cameras lets police officers in one state search for a vehicle across many other states at once; the people searches do a similar thing, typically on a smaller scale, sometimes querying many hundreds of cameras at once. These are called “FreeForm” searches, and allow cops to use Flock’s system as though they would use a search engine, with Flock’s AI and image recognition interpreting what footage and which people are relevant to a police officer’s search.