📡 6G May Be Able to Detect People Through Walls — And Privacy Experts Are Alarmed

The next generation of mobile networks won’t just transmit data. Under development for the 2030s, 6G is expected to integrate Integrated Sensing and Communication (ISAC) — a technology that combines wireless communications with radar-like sensing.

According to Germany’s Data Protection Conference (Datenschutzkonferenz), ISAC could allow networks to detect people through walls and remotely measure breathing and heart rate. Combined with machine learning, the system may also identify individuals by analyzing their gait, gestures, posture, and even facial movements.

The privacy concern is obvious: anyone within the network’s coverage could potentially be sensed, making meaningful user consent nearly impossible.

Researchers at the Barkhausen Institut in Dresden are already working on countermeasures. Their proposed solutions include a hardware switch to disable sensing functions on compatible devices and a mobile app capable of detecting when surrounding space is being scanned. The concepts are expected to be presented at an international expert meeting in September 2026.

Germany has invested around €700 million into 6G research, with commercial deployment widely expected around 2030.

Source: https://www.datenschutzkonferenz-online.de/ and https://www.barkhauseninstitut.org

#6G #ISAC #Privacy #Wireless #Technology #Science

🛰 We May Be Building Satellite Constellations Too Large for Earth’s Orbit

A new analysis suggests that some satellite megaconstellations could cross a dangerous threshold where collisions create debris faster than Earth’s atmosphere can remove it — potentially triggering a runaway increase in space junk.

The study introduces the idea of a “critical size” for a satellite constellation. Above that point, even if individual satellites follow good disposal practices and actively avoid collisions, the constellation as a whole may still generate an unstable debris environment. The model found that several planned, partially deployed and existing constellations exceed that threshold under some assumptions.

The scale of what is being proposed is enormous. The paper notes that the number of active satellites in low-Earth orbit increased by nearly 12,000 in just five years, while applications submitted to the U.S. FCC in 2026 included proposed constellations totaling more than 1.2 million satellites. That would be over 78 times the current operational satellite population cited by the study.

The feared endpoint is related to the Kessler syndrome: one collision produces fragments, those fragments cause more collisions, and eventually parts of low-Earth orbit become increasingly difficult to use safely.

The important caveat: this is a modelling study and currently a preprint, not peer-reviewed research. It does not predict that a catastrophic debris cascade is about to happen tomorrow. But it raises a bigger question: should regulators evaluate satellites one by one — or the cumulative risk of entire constellations?

Space may be enormous. Useful orbit around Earth is not.

#Space #Satellites #SpaceDebris #Astronomy #SpaceTech #Science

https://arxiv.org/abs/2607.29644

🔴 A Rock From Mars Just Filled a 2-Billion-Year Hole in the Planet’s History

Scientists have dated an unusual Martian meteorite to 1.273 billion years old — placing it almost exactly inside a huge missing chapter in our geological record of Mars.

The meteorite, called NWA 13441, was discovered in Algeria in 2019. Most Martian volcanic meteorites of its type are either younger than about 600 million years or around 2.4 billion years old. Until now, researchers had essentially no samples from the enormous interval between them.

But its age may not even be the strangest part. The rock’s neodymium isotopes suggest that the magma it formed from came from a portion of the Martian mantle that had remained remarkably untouched since the earliest days of the Solar System. Mars formed very quickly and, unlike Earth, has no active plate tectonics constantly remixing its interior — potentially allowing ancient chemical reservoirs to survive for billions of years.

In other words, a small rock blasted off Mars by an impact and eventually found in the Sahara may contain a chemical fingerprint preserved from almost the beginning of the planet itself.

How much of Mars’s earliest history could still be locked inside rocks already lying somewhere on Earth?

#Mars #Space #Meteorite #PlanetaryScience #Geology #Science

https://doi.org/10.1016/j.gca.2026.06.035

👁️ Scientists Have Mapped the Wiring Behind Human High-Resolution Vision

Researchers have created the first complete cell-by-cell and synapse-level wiring map of the human fovea — the pinhead-sized region of the retina that lets us read, recognize faces and see fine detail in color.

The team reconstructed roughly 3,000 neurons and more than 300,000 connections, tracing how signals move through this tiny patch of nervous tissue. What they found was unexpectedly elegant: while much of the retina uses many overlapping pathways, the human fovea funnels visual information through just three major circuits.

That streamlined architecture may be one reason human central vision is so precise. The researchers describe it as more like an expressway than a maze of side streets — sacrificing redundancy for speed and efficiency.

The fovea is technically part of the central nervous system, which makes this the first complete connectivity map of a human CNS structure at this level of detail. Beyond basic neuroscience, the map could become a reference for treatments aimed at retinal diseases that destroy central vision.

We often talk about the brain as the organ that “sees.” But the first stage of high-resolution vision may already be doing far more sophisticated processing than we realized.

#Neuroscience #Vision #HumanBrain #Retina #Connectome #Science

https://www.pnas.org/doi/10.1073/pnas.2603286123

🪱 Animals Have Been Eating Nature’s “Bioplastic” for Millions of Years

Long before humans invented biodegradable plastics, bacteria were already making their own.

Many microorganisms produce compounds called polyhydroxyalkanoates, or PHAs — natural polyester-like materials that they store inside their cells as reserves of carbon and energy. Scientists had long assumed that breaking down these microbial plastics was essentially a job for microorganisms themselves.

Then researchers studied a very strange animal: Olavius algarvensis, a tiny marine worm with no mouth and no gut. It survives by hosting bacteria beneath its skin and digesting them for nutrition. Some of those bacteria store as much as 42% of their cellular carbon in PHA.

The researchers discovered that the worm produces its own enzyme capable of breaking PHA into smaller molecules it can use. And it is not alone. Related enzymes turned up in more than 66 animal species across nine major animal groups, including sponges, starfish, earthworms and springtails. Laboratory experiments confirmed that enzymes from several distantly related animals really can degrade PHA.

The finding reveals a previously overlooked route through which carbon stored by microbes enters animal food webs — and suggests animals may have been consuming nature’s original bioplastics for hundreds of millions of years.

Humans invented biodegradable plastic.

Evolution apparently invented both the plastic and something to eat it.

#Biology #Evolution #Bioplastic #Ecology #Microbiology #Science

https://www.nature.com/articles/s41559-026-03153-8

🌌 Scientists May Have Seen “Empty” Space Bend Light

Almost 90 years ago, quantum theory made a bizarre prediction: a perfect vacuum is not truly empty. Under an unimaginably strong magnetic field, empty space itself should behave a little like a transparent material — changing the way light passes through it.

Now astronomers may finally have seen the effect in nature.

Researchers studied 1E 1547.0−5408, a magnetar — an ultra-dense neutron star with a surface magnetic field above 100 trillion gauss. Using NASA’s IXPE X-ray telescope together with NICER and Australia’s Parkes/Murriyang radio telescope, the team measured extraordinarily polarized X-rays: about 65% at 2 keV, rising to nearly 80% during parts of the star’s rotation.

Ordinary models struggled to reproduce what they saw. But when the researchers included vacuum birefringence — a prediction of quantum electrodynamics in which extreme magnetic fields make the quantum vacuum refract different polarizations of light differently — the observations fell naturally into place.

The idea goes back to work by Werner Heisenberg and Hans Euler in the 1930s. In modern quantum field theory, even a vacuum contains fluctuating quantum fields, and extreme magnetic fields can alter how photons propagate through them.

This is not yet considered a definitive detection. The researchers say more observations and improved simulations are needed to rule out competing explanations.

But if confirmed, the result would turn one of the strangest properties of quantum theory into something astronomers can actually observe across the Galaxy.

Empty space, apparently, may not be very empty at all.

#Physics #QuantumPhysics #Magnetar #Astronomy #QED #Science

https://www.nature.com/articles/s41586-026-10859-z

🧬 A Personalized mRNA Cancer Vaccine Has Passed Its Biggest Test Yet

For the first time, a personalized mRNA cancer therapy has succeeded in a Phase 3 clinical trial — the final major testing stage before regulators can consider approval.

The treatment, called intismeran autogene, is not an off-the-shelf vaccine. Doctors sequence each patient’s tumour, identify mutations unique to their cancer, and manufacture an individual mRNA therapy encoding up to 34 of those tumour-specific targets. The goal is essentially to give the immune system a personalized wanted poster for the cancer.

In the trial, 1,137 people with stage IIB–IV melanoma whose tumours had been completely removed received either the personalized mRNA therapy plus the immunotherapy drug pembrolizumab (Keytruda), or pembrolizumab alone. The combination produced statistically significant and clinically meaningful improvements in both recurrence-free survival and distant-metastasis-free survival. No new safety signal was reported.

There is an important caveat: the companies have so far announced only top-line Phase 3 results. They have not yet released the detailed numbers, and it is not yet known whether the treatment ultimately extends overall survival. The therapy also remains investigational and has not been approved.

But the principle is now much harder to dismiss. Instead of finding one cancer vaccine that works for everyone, medicine may be able to manufacture a different vaccine for each individual tumour.

Cancer is personal.

The vaccine might have to be too.

#Cancer #mRNA #Melanoma #Immunotherapy #Biotechnology #Medicine #Science

🧬 Life Uses 4 DNA Letters. Scientists Just Made 8 Work.

Every known organism on Earth writes its genetic instructions using the same four DNA letters: A, T, C and G.

Scientists have now shown that one of biology’s most fundamental molecular machines can read an alphabet containing eight.

Researchers tested E. coli RNA polymerase — the enzyme that reads DNA and turns its information into RNA — with synthetic DNA containing four additional chemical letters known as P, Z, B and S. Remarkably, the enzyme successfully recognized and transcribed the artificial base pairs using much of the same molecular machinery it employs for natural DNA.

Using cryo-electron microscopy at resolutions down to about 2.4 ångströms, the team could watch how the synthetic letters fit inside the polymerase. The artificial pairs adopted almost the same geometry as ordinary Watson–Crick DNA pairs, allowing the enzyme’s catalytic machinery to close around them and continue transcription. Researchers also engineered a modified version of one synthetic letter to reduce copying errors.

The implications are potentially enormous. A larger genetic alphabet could eventually produce RNA molecules with chemical capabilities unavailable to natural biology and might help scientists design new diagnostics, drugs and engineered biological systems. Expanded genetic alphabets have already been used experimentally to create molecules that recognize cancer cells.

But there is an important boundary: scientists have not created an eight-letter living organism here. The experiment demonstrates transcription by bacterial RNA polymerase; reliably replicating a full eight-letter genome and translating that expanded information into proteins inside living cells remain much harder problems.

For four billion years, life on Earth has been writing with four letters.

Apparently, biology’s machinery can read a bigger alphabet than evolution ever gave it.

#Genetics #DNA #SyntheticBiology #Biotechnology #RNA #Science

Primary paper — Nature Communications⁠

🧠 Scientists Replaced Most of a Mouse’s Cortex With Human Brain Tissue

This sounds like science fiction, but the experiment is real.

Stanford researchers genetically engineered mice so that most of their cerebral cortex and hippocampus never developed. The adult animals were left with only about 2% of the normal amount of corresponding cortical tissue.

Then, shortly after birth, scientists implanted tiny human cortical organoids — brain-like structures grown from human stem cells — into the empty space.

Three months later, more than 90% of the cortical tissue by volume was human-derived.

And it did not simply sit there.

Human neurons became integrated into the mouse nervous system, developed organized electrical activity and sent long-range projections — some extending as far as the spinal cord. The mice retained broadly normal movement, although researchers found specific differences in coordination and spontaneous behavior.

Then came an unexpected discovery.

Inside the transplanted human tissue, researchers found cells resembling von Economo neurons — extremely rare, large neurons associated with brain regions involved in social awareness and decision-making. They occur in humans, great apes, elephants, dolphins and whales, but scientists had never previously succeeded in generating them in laboratory brain cultures.

The team also demonstrated why the model could matter medically. When the animals experienced several hours of reduced oxygen, the human cortical tissue was severely damaged while comparable mouse tissue was largely spared — potentially giving researchers a living model for studying why the developing human brain is particularly vulnerable to oxygen deprivation.

An important distinction: these are not mice with human intelligence or a human brain. The transplanted tissue remained developmentally immature, and the experiment provides no evidence of human-like cognition or consciousness. It is a new animal model for studying human neural development and disease.

But the boundary scientists have crossed is remarkable.

We can now grow substantial amounts of developing human neural tissue not just in a dish —

but inside a living brain, connected to a living nervous system.

Where should the ethical boundary for experiments like this be?

#Neuroscience #Brain #Organoids #StemCells #Biotechnology #Stanford #Science

https://www.nature.com/articles/s41586-026-11032-2

🧠 Scientists Replaced Most of a Mouse’s Cortex With Human Brain Tissue

This sounds like science fiction, but the experiment is real.

Stanford researchers genetically engineered mice so that most of their cerebral cortex and hippocampus never developed. The adult animals were left with only about 2% of the normal amount of corresponding cortical tissue.

Then, shortly after birth, scientists implanted tiny human cortical organoids — brain-like structures grown from human stem cells — into the empty space.

Three months later, more than 90% of the cortical tissue by volume was human-derived.

And it did not simply sit there.

Human neurons became integrated into the mouse nervous system, developed organized electrical activity and sent long-range projections — some extending as far as the spinal cord. The mice retained broadly normal movement, although researchers found specific differences in coordination and spontaneous behavior.

Then came an unexpected discovery.

Inside the transplanted human tissue, researchers found cells resembling von Economo neurons — extremely rare, large neurons associated with brain regions involved in social awareness and decision-making. They occur in humans, great apes, elephants, dolphins and whales, but scientists had never previously succeeded in generating them in laboratory brain cultures.

The team also demonstrated why the model could matter medically. When the animals experienced several hours of reduced oxygen, the human cortical tissue was severely damaged while comparable mouse tissue was largely spared — potentially giving researchers a living model for studying why the developing human brain is particularly vulnerable to oxygen deprivation.

An important distinction: these are not mice with human intelligence or a human brain. The transplanted tissue remained developmentally immature, and the experiment provides no evidence of human-like cognition or consciousness. It is a new animal model for studying human neural development and disease.

But the boundary scientists have crossed is remarkable.

We can now grow substantial amounts of developing human neural tissue not just in a dish —

but inside a living brain, connected to a living nervous system.

Where should the ethical boundary for experiments like this be?

#Neuroscience #Brain #Organoids #StemCells #Biotechnology #Stanford #Science

https://www.nature.com/articles/s41586-026-11032-2

⚛️ Scientists Found Quantum Entanglement Inside Higgs Boson Decays

Einstein famously disliked quantum entanglement enough to call it “spooky action at a distance.”

Now physicists have found strong evidence that the same bizarre quantum connection survives inside some of the most violent particle collisions humans can create.

Using the ATLAS Experiment detector at the Large Hadron Collider, researchers studied Higgs bosons decaying into pairs of Z bosons — massive particles that exist for only a tiny fraction of a second.

The question was simple:

Are the quantum states of those two particles independent — or entangled?

The Z bosons disappear far too quickly to measure directly. Instead, researchers reconstructed their spin states from the directions of the electrons and muons produced when they decayed.

The resulting correlations strongly favored quantum entanglement. A statistical analysis rejected a separable, non-entangled description at 4.7 sigma — strong evidence, although just below particle physics’ conventional 5-sigma discovery threshold.

There is another unusual detail.

A Z boson has three possible spin projections. So instead of the familiar two-state qubits used in quantum computing, the entangled Z bosons behave mathematically as qutrits — three-state quantum systems.

Entanglement itself is not new. Scientists have demonstrated it spectacularly with photons, atoms and other systems.

What is new is where it survived.

These Z bosons were created in proton collisions at energies of 13 and 13.6 TeV. They are enormously heavier and vastly shorter-lived than the particles used in traditional entanglement experiments. The result provides the first measurements of entanglement between pairs of Z bosons and strong evidence for entanglement between massive vector bosons at the electroweak scale.

Quantum mechanics, in other words, does not become less weird when you turn the energy up.

It just gets a much bigger laboratory.

#QuantumPhysics #HiggsBoson #CERN #LHC #QuantumEntanglement #Physics #Science

https://journals.aps.org/prl/abstract/10.1103/y1nh-1b82

🧬 An AI Just Made a Biological Discovery

Not summarized a paper.
Not predicted a protein structure.

Found something in nature that scientists apparently hadn’t noticed before.

Researchers gave Claude AI agents a relatively broad task: search enormous DNA databases for unusual reverse transcriptases — enzymes that copy RNA into DNA.

Then they mostly stepped aside.

About 950 AI agents spent 21 hours analyzing more than 200,000 enzymes, narrowing them to 3,500 candidate systems and eventually 20 especially interesting ones.

One agent noticed something strange.

Next to a reverse transcriptase gene in a bacteriophage — a virus that infects bacteria — it found a long, organized array of repeating DNA sequences.

The pattern looked oddly familiar.

It resembled the repeat architecture of CRISPR.

Claude investigated the sequence, measured the repeats, compared them with known systems and searched the scientific literature. It concluded that the combination appeared to represent a previously uncharacterized biological system.

Human scientists then took over in the laboratory.

Their initial experiments supported a key prediction: the mysterious DNA array is actually expressed into multiple short RNA molecules.

The researchers named the system ART — array-associated reverse transcriptases.

And this is where the story gets interesting.

CRISPR also contains arrays that generate short RNAs, which ultimately help make the system programmable. Several other recently discovered molecular systems with similar combinations of features can cut, copy or insert genetic material.

But an important warning: nobody yet knows what ART actually does.

This is an early preprint, not a peer-reviewed discovery, and there is currently no evidence that ART is a new gene-editing system. Experiments are still underway to determine its biological function.

The bigger story may therefore be Claude itself.

For decades, biological discovery depended partly on humans noticing something strange hidden inside enormous datasets.

Now we may have machines capable of doing the noticing.

What happens when thousands — or millions — of AI scientists start searching nature simultaneously?

#AI #Biology #CRISPR #Genetics #Biotechnology #Claude #Science

https://www.anthropic.com/news/claude-discovers-novel-enzyme-system

🪐 Astronomers Just Watched a Planet Being Built

We know surprisingly well how planets should form.

The problem is that the crucial parts of the process happen hundreds of light-years away, on scales so tiny that astronomers have mostly had to reconstruct them from simulations and indirect clues.

Now they have caught the process in action.

Using Atacama Large Millimeter/submillimeter Array, astronomers imaged gas moving around WISPIT 2b, a newborn planet about 430 light-years from Earth.

It is a monster in the making: roughly five times the mass of Jupiter, orbiting inside the disk of gas and dust from which its planetary system is still emerging.

And around the planet, the gas is doing something remarkable.

On one side of WISPIT 2b it is moving toward us; on the other, away from us.

Together, those motions reveal a swirl of gas around the growing planet — exactly the kind of interaction predicted by simulations of planet formation, but never directly observed around a known protoplanet before.

The system is unusually valuable because astronomers can now see essentially every major piece of the process at once:

the enormous protoplanetary disk, the planet itself, hydrogen emission showing that WISPIT 2b is still accreting material, the gap it has carved through the disk — and now the surrounding gas responding directly to the planet.

A second young planet, WISPIT 2c, is also reshaping the system by carving out a larger cavity. And at the center, astronomers recently discovered that there isn’t even one star.

There are two.

The scale of the observation is extraordinary.

At WISPIT 2’s distance, resolving a structure the size of Earth’s orbit around the Sun is roughly equivalent to reading a normal book from five kilometers away.

For decades, simulations have shown us beautiful animations of planets growing inside swirling disks.

Now nature has finally provided the footage.

We are beginning to watch solar systems assemble in real time.

#Space #Astronomy #Exoplanets #PlanetFormation #ALMA #WISPIT2 #Science

https://www.mpg.de/26990768/astronomers-produce-the-first-complete-picture-of-gas-planet-formation-in-action