In a groundbreaking advancement poised to transform the trajectory of space exploration and technology, researchers have unveiled a novel method for manufacturing electronics in microgravity environments using on-demand additive nanomanufacturing techniques. This development, articulated in a recent publication by Bevel, Taba, Patel, and colleagues, outlines the creation of intricate electronic components and functional devices directly in space, bypassing the significant constraints traditionally imposed by Earth-dependent manufacturing and payload transport. The technology marks a pivotal step towards sustaining long-duration missions and the expansion of human presence beyond our planet.

The innovation leverages the advantages offered by microgravity, an environment that alters material behaviors at nanoscale levels, enabling unprecedented precision and control during the fabrication of electronic circuits. Additive manufacturing in microgravity defies the limitations caused by gravity-driven sedimentation and convection on Earth, permitting the deposition of materials with atomic and molecular fidelity. This enhancement at the nanomanufacturing scale is essential for producing next-generation electronics that require exacting standards for performance, miniaturization, and integration.

At the core of this technology is a platform capable of performing ultra-fine additive deposition processes, employing specialized printheads and deposition strategies adaptable to the unique conditions of space. Rather than relying on pre-fabricated components that must be transported from Earth—a costly and logistically challenging endeavor—this methodology empowers spacecraft and potentially orbital outposts to fabricate electronic parts autonomously. The capacity to manufacture on-demand not only reduces payload weights and costs but also mitigates risks associated with component failure, allowing for real-time repairs and adaptations in the field.

Significantly, the researchers have demonstrated the feasibility of this approach through experiments replicating microgravity conditions, integrating conductive, semiconductive, and dielectric materials with nanoscale precision. This multi-material integration is critical for constructing functional devices such as sensors, thin-film transistors, and other components essential to spacecraft instrumentation and communication systems. The ability to seamlessly combine materials paves the way for more complex architectures necessary in advanced electronics.

The implications extend beyond mere convenience; they herald a paradigm shift in how future space missions approach sustainability and autonomy. Missions to Mars, lunar bases, and deep space exploration necessitate robust, self-sufficient systems capable of overcoming the isolation and resupply limitations inherent at vast distances from Earth. The capacity for in-situ manufacturing of electronic systems reduces dependency on Earth’s manufacturing cycles and enables continuous innovation and customization in operational hardware.

Furthermore, the nanomanufacturing process developed capitalizes on the unique physicochemical properties inherent in microgravity. For instance, surface tension and capillary forces dominate over gravitational effects, enabling smoother layering of materials and reducing defects that typically arise in terrestrial manufacturing. This fundamental shift enhances device reliability and performance critical for mission success in harsh extraterrestrial environments.

Another notable aspect of the study involves the scalability and adaptability of the technology. The modular nature of the additive deposition system allows it to be tailored for various mission sizes and requirements, from small satellite platforms to large space stations. Such versatility ensures that the technology can evolve in tandem with ambitions in space habitation and exploration, integrating seamlessly with robotic manufacturing units and autonomous assembly lines.

The research team also addresses challenges related to environmental interference in space, such as radiation and vacuum conditions, illustrating how their materials and techniques maintain structural integrity and functional stability even under these stresses. This robust design consideration is crucial to operational longevity and reliability, ensuring that electronics produced via this method endure the rigors of space.

Moreover, the development contributes significant insights into the materials science of space conditions. By analyzing the microstructural properties of the printed electronics, the study elucidates how microgravity influences crystalline growth, grain boundaries, and defect formation. These findings have broader implications for material engineering and could inform terrestrial manufacturing improvements by mimicking advantageous space-like environments.

Importantly, the technology’s on-demand nature introduces dynamic adaptability to mission operations. Instruments and devices can be fabricated or modified in real time, allowing for unexpected mission requirements or adjustments without waiting for resupply missions. This responsive manufacturing capability offers strategic benefits for mission planners, scientists, and engineers operating in the unpredictable expanse of space.

While currently focused on nanoscale electronics, the researchers envision expansions into fabricating other functional devices, including sensors, actuators, and potentially bioelectronic systems. Such expansions would significantly enrich the technological toolkit available in orbit or on extraterrestrial surfaces, driving innovation in habitat systems, health monitoring, and environmental sensing.

Financially and operationally, this advancement promises to reduce the exorbitant costs associated with launching heavy and complex electronic equipment from Earth. By decentralizing manufacturing to space itself, mission budgets can allocate resources more effectively, and payload design can focus on raw materials and versatile fabrication modules instead of stockpiled components.

As humanity pushes further into the final frontier, the ability to engineer and produce critical technology in situ emerges as a cornerstone of sustainable space exploration. This study not only offers a technological breakthrough but also acts as a conceptual beacon, inspiring new strategies for mission resilience and autonomy that will shape the future of human activity beyond Earth’s atmosphere.

In conclusion, the pioneering work on additive nanomanufacturing of electronics in microgravity marks a critical inflection point in space manufacturing technology. By harnessing the distinctive advantages of space environments, researchers have created a path forward that could dramatically enhance mission resilience, cost-efficiency, and technological capability. This research, presented by Bevel, Taba, Patel, and their collaborators, vividly illustrates how microgravity is not simply a challenge to be overcome but an enabling condition for next-generation manufacturing, heralding a new era of in-space electronics fabrication and functional device production.

Subject of Research:
Additive nanomanufacturing of electronics in microgravity environments aimed at enabling in-space fabrication of functional electronic devices.

Article Title:
On-demand additive nanomanufacturing of electronics in microgravity: towards in-space manufacturing of electronics and functional devices.

Article References:
Bevel, C., Taba, A., Patel, A. et al. On-demand additive nanomanufacturing of electronics in microgravity: towards in-space manufacturing of electronics and functional devices. npj Adv. Manuf. 3, 23 (2026). https://doi.org/10.1038/s44334-026-00085-w

Image Credits:
AI Generated

DOI:
https://doi.org/10.1038/s44334-026-00085-w

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O post Google reinicia limites e lança atualização do modelo Gemini 3.5 Flash apareceu primeiro em Blog do Edivaldo - Informações e Notícias sobre Linux.

Ezekiel's vision is discussed, questioning whether it depicts a divine encounter or ancient astronauts. I critique Erich von Däniken's theories on UFOs, emphasize that advanced propulsion technologies have military origins, and confirm that true anti-gravity remains unattainable within known physics, dismissing claims of reverse-engineered alien technology.

Physicists have been trying to reconcile the differences between Einstein’s theory of spacetime and our observations of quantum mechanics for almost a century. One way that they’ve attempted to do this involves theories that treat space as one-dimensional at very short distances. In a recent paper, physicists claim that they’ve solved a major problem that’s plagued these theories for decades.

This week in stories we’re covering from The Debrief, a new twist on gravity measurement, hidden in a mysterious envelope, may point to a subtle flaw in our understanding of the universe. Elsewhere, researchers are breaking the tiny bounds of Quantum mechanics by creating a massive Schrödinger cat particle under ultracold conditions. And finally, NASA officials just confirmed a rare event captured in satellite images that caused loud booms heard throughout New England.

Meanwhile, here’s a look at other stories we’re covering right now in our reporting at The Debrief: 

• Scientists Just Revealed Something Massive Has Been Hiding Beneath This New York Cemetery for More Than a Century
  Cornell University researchers have confirmed a massive, century-old underground discovery hidden below a New York cemetery.
• Exoplanet Magnetism Revealed in New Study Researchers Call a “Key Step” in Decoding the Survival of Planets
  The best evidence for exoplanet magnetic fields ever discovered has emerged from new research that measures wind speeds on ultra-hot Jupiters.
• “Explore a Scene from Any Vantage Point You Want”: 3D Volumetric Video Breakthrough Means Streaming in 3D May Soon Be a Reality
  A 3D volumetric video breakthrough, overcoming previous technological limitations, could finally enable true 3D streaming on everyday devices.
• “How in the World Can These Things Happen?”: After a Series of ‘Mystery’ Quakes Shook Utah, Scientists Finally Think They Know Why
  Nearly five decades after the first in a series of mystery quakes rocked the Utah-Wyoming region, scientists think they’ve figured it out.
• Astronomers Discover New Way to Weigh Planets Hidden Inside Dusty Disks
  Newborn planets’ dusty rings hold the secret to uncovering their mass, say researchers who have now characterized these once-obscured celestial objects.
• A Single Jawbone From Egypt Is Changing How Scientists Think About Ape Origins
  For much of the past century, fossils from East Africa have shaped our understanding of ape evolution. Now, a jawbone found in the Egyptian desert adds a new dimension to that story.
• Pavlov’s Mosquito: Pests Can Be Conditioned to See DEET as a Meal Ticket Instead of a Deterrent
  Mosquitoes may have surprisingly overcome one of humanity’s best defenses against them, associating the smell of DEET with a nearby meal.
• Einstein-Rosen Bridges May Not Be Wormholes After All, Physicists Reveal
  Recent research suggests that the original bridge theory was not a wormhole but a mathematical feature of how time is structured.
• Newly Discovered “Witch Croc” Reveals Dinosaur-Like Evolution in the Triassic
  A newly described fossil from Ghost Ranch, New Mexico, belongs to the crocodile family tree, but unlike most crocodile-line archosaurs, it walked on two legs, had small arms, and a toothless beak.
• Something Revealed Itself by Bending the Light of a Distant Star in 2019—Now Astronomers Are Racing to Find Out What It Was
  For just an hour in late 2019, a cosmic mystery revealed itself to astronomers in an unprecedented way: by bending the light of a star.
• “The Sun May be Entering a Different Mode of Behavior”: Scientists Say Something is Happening Beneath the Solar Surface
  The Sun is experiencing long-term changes, producing a major squeeze in the four most recent solar activity cycles.
• Asteroid Impact Craters May Have Helped Create Early Habitats for Oxygen-Producing Life
  Scientists studying an ancient asteroid crater on the Korean Peninsula have uncovered rock formations that may offer clues to the rise of atmospheric oxygen on Earth.
• Scientists Locked ‘Virtual’ Astronauts in a Moon Base with Equipment Failures, Moonquakes and Extreme Radiation. Here’s What Happened.
  Scientists locked virtual astronauts in a simulated Lunar Base with system failures and natural disasters and watched how they’d respond.

A twist on gravity measurement, hidden in a mysterious envelope, may point to a subtle flaw in our understanding of the universe, raising new questions about its underlying forces.

That envelope held the key to an experiment led by National Institute of Standards and Technology (NIST) physicist Stephan Schlamminger, which attempted to confirm a measurement of the universal gravitational constant made by a French team in 2007.

Working based on the previous team’s processes, Schlamminger made an important discovery that deepens our understanding of the fundamental force of gravity, as revealed in a recent paper published in Metrologia.

The Universal Gravitational Constant

Of the four forces that govern the universe, gravity, electromagnetism, the weak nuclear force, and the strong nuclear force, gravity has remained the most elusive to clearly understand. The problem is that it is incredibly weak compared to the other three, making precise measurements difficult. 

An easy example of this disparity is that even a small magnet, small enough to fit in the hand, can overcome the gravitational pull of the entire mass of the Earth, despite the extreme disparity in size. Despite its weakness, gravity is the force that binds our universe together, forming galaxies and holding moons in their orbits around planets, and those planets in orbit around their host stars.

A challenge scientists have pursued for over two centuries is measuring the universal gravitational constant, also known as big G, the fundamental strength of gravity throughout the universe. Schlamminger dedicated a decade to his pursuit of the universal gravity constant problem. 

Gravity in the Lab

While we can obviously notice the effect of gravity at the scale of our planet’s effect on our bodies, when considering objects small enough to be manipulated and measured inside a laboratory, the strength of gravity is so faint as to be almost imperceptible. 

Scientists have devised various methods using extremely precise equipment to measure the universal gravitational constant, but their results have failed to align. The most intriguing part is that the differences extend beyond the expected room for error in the precision instruments employed, suggesting that physicists’ basic understanding of gravity may be in error.

To investigate these errors, Schlamminger spent a decade leading an effort to recreate a 2007 experiment conducted by the International Bureau of Weights and Measures (BIPM) in France. If Schlamminger could confirm that finding, it would suggest that physicists may finally have a handle on gravity; otherwise, it could indicate some serious fundamental issue in their understanding.

Ensuring Objectivity

The primary concern for Schlamminger was maintaining the work’s integrity, even in the face of any subconscious bias he may hold. To do so, he had a colleague subtract a number from the data and record it in an envelope to be opened later. Only at the end of the project, with all of the work completed, would the figures be adjusted by the mystery number, ensuring that the data would not be forced to fit the previous outcome.

In 2022, Schlamminger came very close to opening the envelope before suddenly identifying one factor that had gone unaccounted for in his experiment, and adding another two years to the work. Finally, in 2024, he spent the envelope and was pleasantly surprised to see a large negative number, something in the ballpark of what would put his work in agreement with the 2007 findings after the adjustments were made.

However, after the adjustments were made, the mystery number was slightly too large, resulting in a 0.0235% difference from the French measurement.

“At face value, we learned that the new measurement at NIST and the previous measurement at BIPM do not agree with each other,” Schlamminger told The Debrief. “That gives us some idea on the reproducibility of the experiment(s). Since this was the very first time that a big G experiment was repeated, that is significant and new information.”

Continuing to Explore Gravity

“While at NIST, we found a brand-new effect that was never described in the literature before. It is a spurious torque that is mediated by a tiny temperature gradient and the residual gas in the vacuum chamber. It is unclear how much that effect may have biased the BIPM result, because we know little about the temperature gradients in that lab or their vacuum pressure,” Schlaminger continued. “Based on some estimates that I made, it seems unlikely that it accounts for the complete difference. But this effect is definitely something that was not accounted for in their uncertainty budget.”

In conversation with The Debrief, Schlamminger noted the bittersweet nature of repeating an existing experiment and ruminated on how he would advise the next generation to pursue the problem. While pointing out that repeating an experiment can be a learning experience, it remains beholden to ideas that may be outdated. 

He specifically called attention to the cumbersome coordinate measurement machine used in the work, saying that a pendulum design created by University of Washington researchers in the early 2000s would have been much more practical. His primary advice to future scientists is to scour the literature for anything that may be useful, but also to think outside the box to push the envelope even further. 

“Lincoln famously said: Give me six hours to chop down a tree, and I will spend the first four sharpening the axe,” Schlaminger concludes. “So analogous: Give me six years to measure G, and I will spend the first four thinking about the best way.”

The paper, “Redetermination of the Gravitational Constant with the BIPM Torsion Balance at NIST,” appeared in Metrologia on April 16, 2026.

Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org, and follow him on Twitter @mdntwvlf.

The Tiangong experiment tests a basic question: can human development begin in space?

A single atom is one of the last places one would expect to find a gravitational wave. These ripples in spacetime are caused by movements of massive objects such as black holes, and they are typically detected using instruments that measure tiny changes in the distance between mirrors separated by kilometres.  Their home territory is on large scales, not the microscopic scale of an atom.

Despite this, physicists have questioned for decades whether gravitational waves might affect how often atoms spontaneously emit photons. Previous theoretical studies suggested that the answer was no: the total spontaneous emission rate of a single atom remains unchanged, so the atom appears unaffected by the wave.

This null result is not surprising. Gravitational waves stretch space in one direction while squeezing it in a perpendicular direction. Detectors such as LIGO measure this effect by sending light between mirrors in perpendicular “arms” and comparing how long the light takes to travel along each arm. For a single atom, there is no comparable separation to measure, so scientists did not expect that passing gravitational waves could be detected this way.

A hidden signal

In a new study, published in Physical Review Letters, Navdeep Arya and collaborators at Stockholm University in Sweden and Eberhard Karls Universität Tübingen in Germany identified a loophole in this argument. Although gravitational waves do not leave an imprint in the number of photons emitted, Arya and colleagues calculated that they do affect how those photons are distributed in angle and frequency.

This distinction is crucial. Because a gravitational wave does not make the atom emit more or fewer photons overall, its effects will cancel out if one only measures the total number of photons. However, if the photons are sorted by their direction and frequency, a characteristic pattern emerges that reflects the wave’s stretch-and-squeeze geometry. Depending on the wave’s frequency, this pattern can manifest either as a small shift in the emitted photon frequencies or as additional sidebands in the spectrum.

The reason this is possible, Arya explains, is that the atom isn’t the only thing the gravitational wave interacts with. “It’s actually the atom and the [quantum] field,” he says. Because the field is a global object, he adds, it can carry information about the gravitational wave even when the atom itself does not.

Beyond counting photons

The existence of these effects opens a new way of thinking about gravitational-wave detection. Instead of watching how spacetime changes the distance between mirrors, a next-generation detector might look for how a passing wave changes the light emitted by atoms. This approach would make it possible to detect lower-frequency gravitational waves, which are difficult to reach with ground-based detectors such as LIGO.

A system that could detect these effects experimentally would look very different from a traditional gravitational-wave detector. Instead of measuring how a passing wave changes the distance between mirrors, one would need to excite a large cloud of atoms, collect the photons they emit through spontaneous emission, and resolve the angles and frequencies of those photons.

Though this is not a standard experiment, parts of the required technology already exist. Cold-atom experiments, for example, routinely trap and control millions of atoms. The challenge is to combine these capabilities with sufficiently precise measurements of the directions and frequencies of the emitted photons, while also controlling technical noise.

The researchers say their next step is to understand whether the signal will survive under realistic experimental conditions. According to Jerzy Paczos, the Stockholm PhD student who led the study, the most important task will be to consider the full range of technical noise that would appear in a real experiment, determine which noise sources matter most, and conclude from that whether their proposal is truly feasible. The researchers are also interested in whether cavities or collective effects in atomic arrays could amplify the signal.

For now, the work suggests that gravitational waves may leave traces in a place that physicists have not fully looked before: not in how fast an atom emits light, but in the detailed pattern of the light it gives off. In doing so, it points to a new way of using quantum systems to probe spacetime itself.

The post Gravitational waves could leave traces in light from cold atoms appeared first on Physics World.

Physicists have been trying to reconcile the differences between Einstein’s theory of spacetime and our observations of quantum mechanics for almost a century. One way that they’ve attempted to do this involves theories that treat space as one-dimensional at very short distances. In a recent paper, physicists claim that they’ve solved a major problem that’s plagued these theories for decades.