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How Jagged Moon Dust Could Support Future Astronauts

Lunar dust can be a pain – but it’s also literally the ground we will have to traverse if we are ever to have a permanent human settlement on the Moon. In that specific use case, it’s clingy, jagged, staticky properties can actually be an advantage, according to a new paper, recently published in Research from researchers at Beihang University, who analyzed the mechanical properties of samples returned by Chang’e 6 mission to the far side of the Moon.
Chang’e 6 is the first mission ever to return samples from the far side of the Moon. It collected some from the South Pole-Aitken (SPA) basin – the solar system’s largest, deepest, and oldest known impact crater, which formed around 4.2 billion years ago. That formation caused major changes in the geotechnical properties of its soil, compared to those of the near side that had previously been collected by NASA astronauts and Chinese landers.
But testing those properties on Earth is hard. Simulants can’t really do the real thing justice, and there simply isn’t enough true lunar regolith on Earth to give unlimited samples to every interested researcher. Performing some of the testing also destroys the sample, which makes them unusable for other research later on, so the authors came up with an alternative – do non-destructive testing, and then run a simulation.
Fraser discusses how big of a problem dust is.
They settled on the Discrete Element Method (DEM) for the model. This mathematical approach simulates the behavior of bulk materials by calculating the physical interactions, friction, and collisions of millions of individual particles. As an input, it takes the particle’s shape and some of its physical properties, and as an output can produce a “digital twin” of the soil future rovers, or astronauts, must traverse, without ever touching another sample.
Getting there required the authors to touch a few samples first, though. They did so by using high-resolution x-ray micro-computer tomography (micro-CT) to scale part of the sample returned by Chang’e 6. This non-destructive imaging technique, which also utilizes another technique called a convolutional neural network, allowed the researcher to individually reconstruct almost 350 thousand individual particles for analysis.
Analyzing that dataset showed some distinct differences between the far side sample and those taken from the near side. Most notably, the far side sample has fewer large, coarse particles than near-side samples, but also that those particles have low “sphericity”, which measures how close to a true sphere a particle is.
Battling dust with an electric field is one of the ways of combating it, as Fraser explains.
After plugging this dataset into their DEM program, the authors found the regolith is exceptionally strong, sitting at the upper bounds of measurements from Apollo-era samples. This is primarily driven by a high internal friction angle and dust cohesion. Most likely the jaggedness of the particles, which makes them so frustrating when on machines or in human lungs, is actually helpful in the context of increasing their mechanical properties on the ground. In addition, the samples’ mechanical strength was boosted by “cementation” caused by glassy agglutinates, most likely caused by a micrometeoroid impact. These make up roughly 30% of the sample, acting as a cement to hold the rest of the particles together.
To build large infrastructure, such as a future Artemis habitat, or the International Lunar Research Station, understanding the underpinnings of the ground is key. This first-of-its kind geotechnical survey of the far side shows how varied samples can be. And while it might be a while before we truly build anything on the far side (due to communications issues), it’s still good to know that, when we do, we’ll have some solid ground waiting for us. Even if that same solid ground could eventually break down our machines and kill us if exposed to it for too long.
Learn More:
Research / EurekaAlert – Building on the far side: AI analysis suggests sturdier foundation for future lunar bases
H. Wang et al – Particle Morphology Controls the Bulk Mechanical Behavior of Far-Side Lunar Regolith from Chang’e-6 Samples and Deep Learning
UT – The Sticky Problem of Lunar Dust Gets a Mathematical Solution
UT – Flexible Force Fields Can Protect Our Return to the Moon
News
Sugar, a World Dog Surf Champion, is battling cancer, says owner

A five-time World Dog Surf Champion and the first animal inducted into the Surfers’ Hall of Fame is now battling cancer.
Ryan Rustan, the owner of Sugar, the 16-year-old rescue therapy dog, announced the dog’s battle with cancer.
“We’ve been fighting her cancer together — vet visits, special food, medicines, and all the little things I’ve bought to keep her comfortable and happy on the waves,” according to Sugar’s GoFundMe page.
Sugar has also worked with surf therapy foundations and visited veterans at the VA Hospital in Long Beach.
The fundraiser has raised more than $11,000 so far. The website doesn’t disclose Sugar’s prognosis.
“Every donation helps cover what I’ve already spent and helps me prepare for whatever comes next,” according to the fundraiser. “Sugar has brought so much joy to so many. If his story has touched your heart, any support means the world.”
Sugar’s place in the Surfers’ Hall of Fame was cemented in 2024 when the dog’s paws were pressed into the sidewalk in front of the statue of Duke Kahanamoku in Huntington Beach, alongside prints from other surfing legends like world champs Kelly Slater and Andy Irons.
Sugar has won 19 surf titles overall in her career. Rustan rescued Sugar at 7 months old from the streets of Oakland.
News
Homes Searched in Pennsylvania After Bomb Near N.Y.C. Mayor’s House
Federal authorities conducted searches after a homemade bomb that failed to detonate was thrown outside Gracie Mansion, Mayor Zohran Mamdani’s official residence. No one was hurt in the incident.
News
Astronomers Produce the Largest Image Ever Taken of the Heart of the Milky Way

The central region of our Milky Way, sometimes referred to as the “Bulge,” remains something of an enigma to astronomers. Because it is densely packed with stars and clouds of dust and gas, capturing images of its interior has historically been very difficult. But with advances in radio astronomy over many decades, which can capture light that is otherwise blocked at visible wavelengths, astronomers have made some immensely fascinating finds there. In addition to the well-known supermassive black hole (SMBH), Sagittarius A*, there is chemistry at work that could shed light on the origins of life in our galaxy.
Using the Atacama Large Millimeter/submillimeter Array (ALMA), an international team of astronomers has captured the central region of the Milky Way in unprecedented detail. The image reveals a region measuring 650 light-years in diameter filled with a complex network of filaments composed of dense clouds of cosmic gas, known as the Central Molecular Zone (CMZ). As the largest ALMA image taken to date, the rich dataset will allow astronomers to examine the rich chemistry and how stars evolve in the most extreme region of our galaxy.
The research that led to this dataset was conducted by members of the ALMA CMZ Exploration Survey (ACES), a scientific collaboration of more than 160 scientists from more than 70 institutions across Europe, North and South America, Asia, and Australia. The ACES is dedicated to studying the cold gas and identifying chemical signatures in the CMZ, ranging from simple compounds (such as silicon monoxide) to complex organic molecules (such as hydrocarbons). Their work is described in a series of papers that were published in the *Monthly Notices of the Royal Astronomical Society*.
ACES is the largest survey of its kind conducted with the ALMA array toward the Galactic Center, which produced a mosaic of radio images spanning a section of night sky as big as three full Moons, positioned side-by-side. The project was instigated and led by Principal Investigator Steven Longmore, who was joined by co-PIs from each participating institution. One such person is Ashley Barnes, an astronomer at the European Southern Observatory (ESO), which oversees the ALMA array. As she described their observations of the CMZ in an ESO press release:
It’s a place of extremes, invisible to our eyes, but now revealed in extraordinary detail. The observations provide a unique view of the cold gas — the raw material from which stars form — within the so-called Central Molecular Zone (CMZ) of our galaxy. It is the first time the cold gas across this whole region has been explored in such detail. It is the only galactic nucleus close enough to Earth for us to study in such fine detail. The dataset reveals the CMZ like never before, from gas structures dozens of light-years across all the way down to small gas clouds around individual stars.
The image shows cold molecular gas flowing along filaments that feed into clumps, from which new stars are born. While astronomers understand how this process works in the outer disk of the Milky Way, the conditions in the center are far more extreme. How new stars form and evolve under such conditions is still a mystery to astronomers. With this new dataset, astronomers hope to test whether theories of star formation still apply in extreme environments. Said Longmore:
The CMZ hosts some of the most massive stars known in our galaxy, many of which live fast and die young, ending their lives in powerful supernova explosions, and even hypernovae. By studying how stars are born in the CMZ, we can also gain a clearer picture of how galaxies grew and evolved. We believe the region shares many features with galaxies in the early Universe, where stars were forming in chaotic, extreme environments.
The observations also provided a few surprises. Whereas the team anticipated that their observations would yield a high level of detail, they were still awestruck by the complexity and richness revealed in the final mosaic. This detailed survey is likely to be followed up with even more detailed observations once ALMA is upgraded, and when next-generation telescopes become operational.
“The upcoming ALMA Wideband Sensitivity Upgrade, along with ESO’s Extremely Large Telescope, will soon allow us to push even deeper into this region — resolving finer structures, tracing more complex chemistry, and exploring the interplay between stars, gas, and black holes with unprecedented clarity,” says Barnes. “In many ways, this is just the beginning.”
Further Reading: ESO
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