My Astronomy and Space Exploration Blog

Also includes any other scientifically-related posts that I find interesting, especially those that are climate and energy related. Occasionally some politics creeps in, if it also has a scientific context.

[spacetimewithstuartgary]

[spacetimewithstuartgary]

The moons of Uranus may preserve evidence of one of the most unstable periods in the early Solar System.

Long before the giant planets settled into their present orbits, Jupiter, Saturn, Uranus and Neptune probably migrated through a crowded outer Solar System filled with icy planetesimals and perhaps even one or more additional ice-giant-sized planets.

During that phase, close gravitational encounters could have rearranged the orbits of the giant planets and may have expelled a lost planet into interstellar space.

The key idea is that the moons of Uranus are not just passive objects orbiting a distant planet.

They are fragile dynamical records.

If Uranus experienced many strong close encounters with other giant planets, its regular moons should have been severely disturbed, scattered, or destroyed.

Yet today Uranus still has a system of large moons, including Miranda, Ariel, Umbriel, Titania and Oberon.

Their survival places limits on how violent the early instability could have been.

New simulations suggest that many plausible versions of the early Solar System’s instability would have destabilized Uranus’ moons.

This makes the current moon system difficult to explain unless the real history was more specific than the simplest models.

Uranus may have avoided the most destructive encounters, its moons may have been partly rebuilt after collisions, or the early Solar System may have included an extra giant planet that changed the way the instability unfolded before being ejected.

Miranda is especially interesting because its surface already shows signs of a complicated past, with huge fractures, disrupted terrains and evidence of major geological reworking.

That does not prove that a missing planet directly shaped Miranda, but it supports the broader idea that Uranus’ moons may have been altered by large-scale events, including the impact that tilted Uranus onto its side and the later migration of the giant planets.

The broader importance is that Uranus could help reconstruct a lost chapter of Solar System history.

Its moons may contain clues about whether the outer Solar System once had more giant planets than it has today.

A future mission to Uranus could study the moons’ surfaces, interiors, gravity fields and orbital histories in detail, helping scientists determine whether they are ancient survivors, rebuilt remnants, or evidence of a more chaotic planetary system that once included worlds now gone.

[itsfullofstars]

ASTRONOMY PICTURE OF THE DAY June 6, 2026 at 05:00PM It was visible around the world. The sunset conjunction of Jupiter (left) and Venus (right) in 2012 was visible almost no matter where you lived on Earth. Anyone on our planet with a clear western horizon at sunset could see them. That year, a creative photographer traveled away from the town lights of Szubin, Poland to photograph a near closest approach of the two planets. The bright planets were then separated by only three degrees and his daughter struck a humorous pose. A faint red sunset still glowed in the background. Jupiter and Venus are together again this week after sunset, passing within a degree of each other about two days from today. Image: https://ift.tt/zjrGbu8 via NASA https://ift.tt/Y4sk8eS APOD --> https://ift.tt/1vgLSsD

[spacetimewithstuartgary]

Rovers, regolith, robots: The blueprint for the moon

The "soil" blanketing the moon's surface isn't actually soil. It's a fine, lethal, abrasive powder of shattered rock and jagged glass that shreds gaskets, chews through seals, and hangs in an airless environment blasted by unfiltered radiation and temperature swings that can warp steel. Scientists call it lunar regolith.

To engineers and the space community, lunar regolith is one of the most hostile construction materials in the human story. To researchers at Texas A&M University, it's the raw material for humanity's next frontier of a permanent lunar settlement.

With NASA's unveiling of its new Lunar Innovation Park—a base designed to support human presence and operations in the lunar environment—the university is emerging as a key player in the agency's most urgent challenge: how to do construction on the moon.

"We are moving past the era of 'flags and footprints,'" said Dr. Patrick Suermann, professor of construction science at the College of Architecture and retired U.S. Air Force lieutenant colonel. "We have to stop thinking like explorers and start thinking like settlers. That means building with what's underneath our boots."

Suermann recently presented his vision and work at the 2026 Earth & Space conference, hosted at the Texas A&M Hotel and Conference Center.

The million-dollar problem

To build a civilization, humans can't be space tourists carrying their own luggage; future settlers will have to use the resources already on the moon. "It costs roughly $1 million to $1.3 million per kilogram to ship materials to the moon," Suermann said.

The economics become even more staggering when scaled. A 2018 report on lunar architecture estimated that transporting rocket propellant from Earth to the moon costs roughly $10,000 per kilogram. But, if that same fuel was produced on the moon, the estimated cost plummets to just $500, almost 20 times cheaper.

"The high cost of shipping to the moon is the million-dollar problem," Suermann said. "Every time you can cut the mass of a payload, you save a fortune. That's why the future depends on building infrastructure from resources already on the moon."

The command center for the space race

The idea of building on the moon using its own resources sits at the center of a growing collaboration between the university, private industry, and government agency partners. Helping spearhead this effort is the Texas A&M Space Institute led by Dr. Robert Ambrose, professor of mechanical engineering at the College of Engineering.

Backed by a historic $200 million investment from the Texas Legislature and situated next door to the Johnson Space Center in Houston, the institute is designed to be the nation's premier hub for off-world research, robotics, and testing.

"One of the most exciting features of the 240-acre facility is it's two-and-a-half acre testing areas: one replicating the surface of the moon, the other Mars," Suermann said.

The institute simulates the brutal realities of extraterrestrial construction while ushering in a new generation of robotics, autonomous systems, and space rovers through a direct pipeline from the Robotics and Automation Design (RAD) Lab.

But the Space Institute is more than a research campus, it's a hub of innovation. "It isn't just a facility," Suermann said. "It's a place to get young investigators and the next generation of researchers excited and prepared to tackle the biggest challenges in space exploration."

The lunar foreman

While the institute provides the landscape, the Construction Automation, Safety and Education (CASE) Lab, led by Dr. Gilles Albeaino, assistant professor of construction science at the College of Architecture, focuses on the industrial "brain" of future lunar construction.

Here, researchers are pioneering the use of mixed reality, or how humans and machines will work together as partners, rather than simple remote-controlled tools.

Future lunar construction sites may look like scenes from a science fiction movie: rovers hauling regolith across the moon's surface, robotic arms printing walls layer by layer, and engineers on Earth overseeing operations through VR headsets.

"On the moon, construction operations will depend on semi-autonomous robotic systems," Suermann said. "The CASE lab is leading research into how humans and machines can work together in environments where humans can't safely do everything themselves."

That challenge is magnified on the moon. There is no natural shielding from radiation, temperatures swing violently between lunar night and day, dust can permeate equipment, and even simple repairs become high-risk operations.

"Every tool matters. Every ounce of material you ship matters," Suermann said. "So, the question becomes: how do you use the environment itself as your supply chain, and how can you augment machines to become your partner in austere environments?"

From the Arctic to Afghanistan

For Suermann, the lessons shaping lunar construction don't just stem from his academic endeavors in modeling and designing informatics and building sciences. They also come from two decades spent serving in some of Earth's harshest environments.

Before joining Texas A&M in 2017, Suermann served in the U.S. Air Force, deploying to isolated regions like Guam and Greenland. His mission? Build sustainable infrastructure and bases that support military operations.

"My experiences in serving the U.S. Air Force were formative, and transformative," Suermann said. "It taught me a great deal about construction, and that what can go wrong will go wrong."

One deployment in Afghanistan left a particularly lasting impression. He led a joint military operation for the building of a runway and base in the middle of a desert no-man's-land. "The sand was this fine, talcum-like, powdered mesh," Suermann said. "Hidden under it were these massive boulders."

The construction logistics were a nightmare. To Suermann, though, it was an exciting engineering expedition—a strangely familiar feeling to the challenges researchers now face in planning for lunar expeditions.

"It shows, to me, that lunar regolith isn't too dissimilar from the terrain we have here on Earth," Suermann said. "At the end of the day, construction is construction."

Today, Suermann is passing that expeditionary spirit to mission partners, academic collaborators, and a new generation of Aggies.

In the halls of the College of Architecture, his expertise plays an interdisciplinary symphony across engineering, management, and technology—conducting a scientific tune where theories meet impactful discoveries and applications.

"The beauty of construction folks is that we take the ideas that live in computer simulations and make them come to life," Suermann said. "It's not an assembly line; it's ideas that we turn into universal applications. To lead the future, you have to know how things are done now."

As NASA moves toward its 2040 goal for a permanent lunar base, the Aggie mission remains clear: not just to visit the moon, but to stay there. And they're building that future one layer of lunar regolith at a time.

[skylobster]

Lunar regolith is nasty stuff, but can also be useful if we learn how to work with it. And the lunar crust is full of rock we can smelt to create aluminum, glass, and oxygen, among other valuable raw materials.

[spacetimewithstuartgary]

Rovers, regolith, robots: The blueprint for the moon

In an environment of radiation, extreme temperatures and razor-sharp dust, researchers are designing how humans will build, and ultimately survive, on the moon

The “soil” blanketing the moon’s surface isn’t actually soil.

It’s a fine, lethal, abrasive powder of shattered rock and jagged glass that shreds gaskets, chews through seals and hangs in an airless environment blasted by unfiltered radiation and temperature swings that can warp steel.

Scientists call it lunar regolith.

To engineers and the space community, lunar regolith is one of the most hostile construction materials in the human story.

To researchers at Texas A&M University, it’s the raw material for humanity’s next frontier of a permanent lunar settlement.

With NASA’s unveiling of its new Lunar Innovation Park — a base designed to support human presence and operations in the lunar environment — Texas A&M is emerging as a key player in the agency’s most urgent challenge: how to do construction on the moon.

“We are moving past the era of ‘flags and footprints,’” said Dr. Patrick Suermann, professor of construction science at the College of Architecture and retired U.S. Air Force lieutenant colonel. “We have to stop thinking like explorers and start thinking like settlers. That means building with what’s underneath our boots.”

Suermann recently presented his vision and work at the 2026 Earth & Space conference, hosted at the Texas A&M Hotel and Conference Center.

The million-dollar problem

To build a civilization, humans can’t be space tourists carrying their own luggage; future settlers will have to use the resources already on the moon.

“It costs roughly $1 million to $1.3 million per kilogram to ship materials to the moon,” Suermann said.

The economics become even more staggering when scaled.

A 2018 report on lunar architecture estimated that transporting rocket propellant from Earth to the moon costs roughly $10,000 per kilogram. But, if that same fuel was produced on the moon, the estimated cost plummets to just $500, almost 20 times cheaper.

“The high cost of shipping to the moon is the million-dollar problem,” Suermann said. “Every time you can cut the mass of a payload, you save a fortune. That’s why the future depends on building infrastructure from resources already on the moon.”

The command center for the space race

The idea of building on the moon using its own resources sits at the center of a growing collaboration between Texas A&M, private industry and government agency partners.

Helping spearhead this effort is the Texas A&M Space Institute led by Dr. Robert Ambrose, professor of mechanical engineering at the College of Engineering.

Backed by a historic $200 million investment from the Texas Legislature and situated next door to the Johnson Space Center in Houston, the institute is designed to be the nation’s premier hub for off-world research, robotics and testing.

“One of the most exciting features of the 240-acre facility is it’s two-and-a-half acre testing areas: one replicating the surface of the moon, the other Mars,” Suermann said.

The institute simulates the brutal realities of extraterrestrial construction, while ushering in a new generation of robotics, autonomous systems and space rovers through a direct pipeline from the Robotics and Automation Design (RAD) Lab.

But the Texas A&M Space Institute is more than a research campus, it’s a hub of innovation.

“It isn’t just a facility,” Suermann said. “It’s a place to get young investigators and the next generation of researchers excited and prepared to tackle the biggest challenges in space exploration.”

The lunar foreman

While the institute provides the landscape, the Construction Automation, Safety and Education (CASE) Lab led by Dr. Gilles Albeaino, assistant professor of construction science at the College of Architecture, focuses on the industrial “brain” of future lunar construction.

Here, researchers are pioneering the use of mixed reality, or how humans and machines will work together as partners, rather than simple remote-controlled tools.

Future lunar construction sites may look like scenes from a science fiction movie: rovers hauling regolith across the moon’s surface, robotic arms printing walls layer by layer, and engineers on Earth overseeing operations through VR headsets.

“On the moon, construction operations will depend on semi-autonomous robotic systems,” Suermann said. “The CASE lab is leading research into how humans and machines can work together in environments where humans can’t safely do everything themselves.”

That challenge is magnified on the moon. There is no natural shielding from radiation, temperatures swing violently between lunar night and day, dust can permeate equipment, and even simple repairs become high-risk operations.

“Every tool matters. Every ounce of material you ship matters,” Suermann said. “So, the question becomes: how do you use the environment itself as your supply chain, and how can you augment machines to become your partner in austere environments?”

From the Arctic to Afghanistan

For Suermann, the lessons shaping lunar construction don’t just stem from his academic endeavors in modeling and designing informatics and building sciences. They also come from two decades spent serving in some of Earth’s harshest environments.

Before joining Texas A&M in 2017, Suermann served in the U.S. Air Force, deploying to isolated regions like Guam and Greenland.

His mission? Build sustainable infrastructure and bases that support military operations.

“My experiences in serving the U.S. Air Force were formative, and transformative,” Suermann said. “It taught me a great deal about construction, and that what can go wrong will go wrong.”

One deployment in Afghanistan left a particularly lasting impression. He led a joint military operation for the building of a runway and base in the middle of a desert no-man’s-land.

“The sand was this fine, talcum-like, powdered mesh,” Suermann said. “Hidden under it were these massive boulders.”

The construction logistics were a nightmare. To Suermann, though, it was an exciting engineering expedition — a strangely familiar feeling to the challenges researchers now face in planning for lunar expeditions.

“It shows, to me, that lunar regolith isn’t too dissimilar from the terrain we have here on Earth,” Suermann said. “At the end of the day, construction is construction.”

Today, Suermann is passing that expeditionary spirit to mission partners, academic collaborators and a new generation of Aggies.

In the halls of the College of Architecture, his expertise plays an interdisciplinary symphony across engineering, management and technology — conducting a scientific tune where theories meet impactful discoveries and applications.

“The beauty of construction folks is that we take the ideas that live in computer simulations and make them come to life,” Suermann said. “It’s not an assembly line; it’s ideas that we turn into universal applications. To lead the future, you have to know how things are done now.”

As NASA moves toward its 2040 goal for a permanent lunar base, the Aggie mission remains clear: not just to visit the moon, but to stay there. And they’re building that future one layer of lunar regolith at a time.  

[livingforstars]

Phobos: Doomed Moon of Mars - May 31st, 1998.

"Phobos is doomed. Mars, the red planet named for the Roman god of war, has two tiny moons, Phobos and Deimos, whose names are derived from the Greek for fear and panic. These Martian moons may very well be captured asteroids originating in the asteroid belt between Mars and Jupiter, or perhaps from even more distant reaches of the Solar System. In this 1977 Viking orbiter image, the largest moon, Phobos, is seen to be a heavily cratered asteroid-like object. It is about 17 miles across and zips through the Martian sky, completing an orbit in less than 8 hours. Phobos orbits so close to Mars, (about 3,600 miles above the surface, compared to 250,000 miles for our Moon) that gravitational tidal forces are dragging it down. In 100 million years or so, it should crash into the surface, or be shattered by stress caused by the relentless tidal forces, the debris forming a ring around Mars."

[skylobster]

In about 100 million years, Phobos just might shatter, and turn Mars into another ringed world. Gotta love APOD !

Phobos orbits Mars so quickly that it rises in the West and sets in the East. Three times per day!

Another question: How long has Phobos been orbiting Mars?

[uploadsforanotherbondiblonde]

[materialsscienceandengineering]

80 years after the Trinity nuclear test, scientists identify new molecule-trapping crystal formed in the blast

Matter behaves strangely under extreme conditions, and often, remnants of these behaviors are left behind even when conditions return to normal. The Trinity nuclear test in 1945 left behind such remnants, and now, 80 years after the explosion, researchers have identified another unique example of what happens when various materials are heated to temperatures exceeding 1,500 °C (2,730 °F) and put under pressures tens of thousands of times atmospheric pressure. The team describes a clathrate compound never before found among nuclear-explosion products in their new study, published in the Proceedings of the National Academy of Sciences.

Read more.

[saywhat-politics]

Do you think he has any idea of what he just said?

[quakerjoe]

[materialsscienceandengineering]

This town found clean energy deep inside old coal mines

Cumberland, British Columbia, grew out of coal mining. For decades, the industry defined daily life, employing thousands of workers and sending millions of tonnes of coal around the world. When mining operations shut down after roughly 80 years, they left behind more than empty tunnels. The closures also created a lasting economic gap in the community. Today, the same underground network that once fueled industry could help power a cleaner future. Through a partnership with the University of Victoria-led Accelerating Community Energy Transformation (ACET) initiative, Cumberland is exploring how its abandoned mine shafts and tunnels can support a new source of energy.

Read more.

[skylobster]

Geothermal energy from water which collected inside coal tunnels.

[spacetimewithstuartgary]

NASA Science, Cargo Launch on 34th SpaceX Resupply Mission to Station

The 34th SpaceX commercial resupply mission under contract with NASA is headed to the International Space Station with new scientific experiments after lifting off at 6:05 p.m. EDT Friday on a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.

The SpaceX spacecraft, loaded with nearly 6,500 pounds of cargo for the space station’s Expedition 74 crew, is scheduled to autonomously dock at about 7 a.m. Sunday, May 17, to the forward port of the station’s Harmony module.

Watch NASA’s live rendezvous and docking coverage beginning at 5:30 a.m. on NASA+, Amazon Prime, and the agency’s YouTube channel. Learn how to watch NASA content through a variety of online platforms, including social media.

In addition to cargo for the crew aboard the space station, Dragon will deliver several new experiments, including a project to determine how well Earth-based simulators mimic microgravity conditions, a bone scaffold made from wood that could produce new treatments for fragile bone conditions like osteoporosis, and equipment to help researchers evaluate how red blood cells and the spleen change in space. The Dragon spacecraft also will carry a new instrument to study charged particles around Earth that can impact power grids and satellites, an investigation that could provide a fundamental understanding of how planets form, and an instrument designed to take highly accurate measurements of sunlight reflected by Earth and the Moon.

These experiments are just a sample of the hundreds of investigations conducted aboard the orbiting laboratory in the areas of biology and biotechnology, physical sciences, and Earth and space science. For more than 25 years, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and making research breakthroughs that aren’t possible on Earth. The space station helps NASA understand and overcome the challenges of human spaceflight, expand commercial opportunities in low Earth orbit, and build on the foundation for long-duration missions to the Moon, as part of the Artemis program, and to Mars.

The Dragon spacecraft is scheduled to remain at the station until mid-June, when it will depart and return to Earth with time-sensitive research and cargo, ahead of splashing down off the coast of California.

[spacetimewithstuartgary]

[skylobster]

56,000 miles is about 7 Earth diameters (8,000 miles). So an approximate calculation tells us that for every asteroid that gets at least this close to Earth, one out of 50 will impact our planet. An asteroid this large could cause regional damage, but would not wreck the planet, as would a kilometer-sized rock such as the Chixculub impact 65 million years ago.

[sunnycosmology]

[materialsscienceandengineering]

This new aluminum could replace rare metals and cut costs dramatically

A groundbreaking aluminum discovery could replace rare metals and transform chemistry with cheaper, greener reactions.

A team of scientists at King's College London has identified a new form of aluminum, one of the most abundant metals on Earth, that could offer a far less expensive and more sustainable alternative to widely used rare earth metals. Led by Dr. Clare Bakewell, a Senior Lecturer in the Department of Chemistry, the researchers created highly reactive aluminum molecules capable of breaking some of the strongest chemical bonds. Their findings, published in Nature Communications, also reveal entirely new molecular structures, opening the door to previously unknown types of chemical behavior.

Read more.

[skylobster]

A three-member ring of Aluminum atoms (a trimer). Surprisingly, this configuration is stable.

[spacenutspod]

NASA Maps Hidden “Interstellar Ice Highways” That Could Seed Entire New Worlds

A new study published in The Astrophysical Journal reveals that frozen water and molecular ices are spread across immense regions of the Milky Way, offering a powerful new perspective on how planets and life may emerge. Using NASA’s SPHEREx telescope, scientists have created the first large-scale map of these hidden reservoirs, showing that the space between stars is far from empty, it is filled with the raw ingredients of future worlds. A Galactic Map Of Hidden Ice The discovery focuses on massive molecular clouds, cold and dense regions that stretch across hundreds of light-years and serve as stellar nurseries. Within these clouds, SPHEREx detected thin layers of frozen water, carbon dioxide, and carbon monoxide coating microscopic dust grains. These grains, though incredibly small, play a central role in cosmic chemistry by hosting the molecules that later become part of planets, comets, and atmospheres. By observing in infrared light, the telescope can detect the unique chemical fingerprints of these ices, allowing scientists to map their distribution on an unprecedented scale. Published in The Astrophysical Journal, the study confirms that these dense clouds act as protective environments where ice can form and survive. Ultraviolet radiation from nearby young stars would normally destroy such molecules, but thick dust acts as a shield, preserving them. Regions like Cygnus X and the North American Nebula, which appear dark in visible light, are revealed as structured and dynamic reservoirs when viewed in infrared. This new perspective transforms our understanding of these regions from empty voids into active zones of chemical storage and transformation, where the building blocks of planetary systems are already taking shape long before planets themselves exist. The same region as the header image, but in three different wavelengths assigned the colors green, blue, and red. This SPHEREx observation highlights the dark, dusty lanes that protect the water molecules from the intense radiation generated by newborn stars. Image credit: NASA/JPL-Caltech/IPAC/Hora et al. Interstellar Glaciers And The Origins Of Water The presence of these icy reservoirs has direct implications for how water, and potentially life, spreads throughout the galaxy. As stars form within molecular clouds, the surrounding material collapses into disks that eventually give rise to planets. The ice trapped within dust grains can be incorporated into these forming worlds, delivering water and essential molecules at the earliest stages of their evolution. This process suggests that water may be a common outcome of star formation rather than a rare occurrence. “These vast frozen complexes are like ‘interstellar glaciers’ that could deliver a massive water supply to new solar systems that will be born in the region,” said study co-author Phil Korngut, instrument scientist for SPHEREx at Caltech. “It’s a profound idea that we are looking at a map of material that could rain on nascent planets and potentially support future life.” This insight reframes the origin of water on Earth and elsewhere, pointing to a cosmic supply chain that begins long before a planet forms. The idea that entire solar systems may inherit water-rich environments from their birth clouds adds a new dimension to the search for habitable worlds across the Milky Way. A New Way Of Seeing The Milky Way What distinguishes SPHEREx is its ability to capture the galaxy as a whole rather than focusing on isolated targets. Earlier missions like James Webb and Spitzer provided detailed observations of specific regions, but SPHEREx takes a broader approach, scanning the entire sky and building a three-dimensional map of galaxies and interstellar material. This wide-field capability allows scientists to observe patterns and connections that were previously invisible. “We expected to detect these ices in front of individual bright stars: The light from a star acts like a spotlight, revealing any ice in the space between us and that star. But this is something different,” said Joseph Hora of the Center for Astrophysics | Harvard & Smithsonian. “When looking along the galactic plane, where most of the stars, gas, and dust of our galaxy are concentrated, there’s a lot of diffuse background light shining through entire dust clouds, and SPHEREx can see the spatial distribution of the ices they contain in incredible detail.” This ability to trace ice across entire regions provides a more complete picture of how interstellar environments evolve. It allows researchers to connect small-scale chemistry with large-scale galactic structure, offering insights into how matter cycles through different phases over time. Not All Ice Is Created Equal The findings also show that not all ices behave in the same way. Water ice, carbon dioxide ice, and carbon monoxide ice each form under different physical conditions and respond differently to their environment. Variations in temperature, radiation, and density influence how these molecules accumulate or break apart, shaping the chemical composition of star-forming regions. “We can investigate the environmental factors that contribute to different ice formation rates across large areas of interstellar space,” said study co-author Gary Melnick, also of the Center for Astrophysics. “The SPHEREx mission’s ‘big picture’ view provides valuable new information you can’t get when zooming in on a small region.” These differences are critical for understanding how complex chemistry develops in space. They determine which molecules survive long enough to become part of forming planets and which are lost, ultimately influencing the potential for habitable environments to emerge. A Dynamic Reservoir For Future Worlds The Milky Way now appears as a dynamic system filled with vast, evolving reservoirs of icy material. These clouds are constantly shaped by stellar radiation, gravitational forces, and turbulent motion, leading to cycles of destruction and renewal. Over time, they fragment and collapse, giving rise to new stars and planetary systems while redistributing water and other key molecules throughout the galaxy. As SPHEREx continues its mission, future observations will refine this map and reveal how these icy reservoirs change over time. Each new dataset brings scientists closer to understanding the full lifecycle of matter in the galaxy, from diffuse clouds to fully formed planets. The emerging picture suggests that the ingredients for life are not rare anomalies but natural products of cosmic evolution, embedded within the very processes that shape the universe. Enjoyed this article? Subscribe to our free newsletter for engaging stories, exclusive content, and the latest news.

A new study published in The Astrophysical Journal reveals that frozen water and molecular ices are spread across immense regions of the Milky Way, offering a powerful new perspective on how planets and life may emerge. Using NASA’s SPHEREx telescope, scientists have created the first large-scale map of these hidden reservoirs, showing that the space between stars is far from empty, it is filled with the raw ingredients of future worlds. A Galactic Map Of Hidden Ice The discovery focuses on massive molecular clouds, cold and dense regions that stretch across hundreds of light-years and serve as stellar nurseries. Within these clouds, SPHEREx detected thin layers of frozen water, carbon dioxide, and carbon monoxide coating microscopic dust grains. These grains, though incredibly small, play a central role in cosmic chemistry by hosting the molecules that later become part of planets, comets, and atmospheres. By observing in infrared light, the telescope can detect the unique chemical fingerprints of these ices, allowing scientists to map their distribution on an unprecedented scale. Published in The Astrophysical Journal, the study confirms that these dense clouds act as protective environments where ice can form and survive. Ultraviolet radiation from nearby young stars would normally destroy such molecules, but thick dust acts as a shield, preserving them. Regions like Cygnus X and the North American Nebula, which appear dark in visible light, are revealed as structured and dynamic reservoirs when viewed in infrared. This new perspective transforms our understanding of these regions from empty voids into active zones of chemical storage and transformation, where the building blocks of planetary systems are already taking shape long before planets themselves exist. The same region as the header image, but in three different wavelengths assigned the colors green, blue, and red. This SPHEREx observation highlights the dark, dusty lanes that protect the water molecules from the intense radiation generated by newborn stars. Image credit: NASA/JPL-Caltech/IPAC/Hora et al. Interstellar Glaciers And The Origins Of Water The presence of these icy reservoirs has direct implications for how water, and potentially life, spreads throughout the galaxy. As stars form within molecular clouds, the surrounding material collapses into disks that eventually give rise to planets. The ice trapped within dust grains can be incorporated into these forming worlds, delivering water and essential molecules at the earliest stages of their evolution. This process suggests that water may be a common outcome of star formation rather than a rare occurrence. “These vast frozen complexes are like ‘interstellar glaciers’ that could deliver a massive water supply to new solar systems that will be born in the region,” said study co-author Phil Korngut, instrument scientist for SPHEREx at Caltech. “It’s a profound idea that we are looking at a map of material that could rain on nascent planets and potentially support future life.” This insight reframes the origin of water on Earth and elsewhere, pointing to a cosmic supply chain that begins long before a planet forms. The idea that entire solar systems may inherit water-rich environments from their birth clouds adds a new dimension to the search for habitable worlds across the Milky Way. A New Way Of Seeing The Milky Way What distinguishes SPHEREx is its ability to capture the galaxy as a whole rather than focusing on isolated targets. Earlier missions like James Webb and Spitzer provided detailed observations of specific regions, but SPHEREx takes a broader approach, scanning the entire sky and building a three-dimensional map of galaxies and interstellar material. This wide-field capability allows scientists to observe patterns and connections that were previously invisible. “We expected to detect these ices in front of individual bright stars: The light from a star acts like a spotlight, revealing any ice in the space between us and that star. But this is something different,” said Joseph Hora of the Center for Astrophysics | Harvard & Smithsonian. “When looking along the galactic plane, where most of the stars, gas, and dust of our galaxy are concentrated, there’s a lot of diffuse background light shining through entire dust clouds, and SPHEREx can see the spatial distribution of the ices they contain in incredible detail.” This ability to trace ice across entire regions provides a more complete picture of how interstellar environments evolve. It allows researchers to connect small-scale chemistry with large-scale galactic structure, offering insights into how matter cycles through different phases over time. Not All Ice Is Created Equal The findings also show that not all ices behave in the same way. Water ice, carbon dioxide ice, and carbon monoxide ice each form under different physical conditions and respond differently to their environment. Variations in temperature, radiation, and density influence how these molecules accumulate or break apart, shaping the chemical composition of star-forming regions. “We can investigate the environmental factors that contribute to different ice formation rates across large areas of interstellar space,” said study co-author Gary Melnick, also of the Center for Astrophysics. “The SPHEREx mission’s ‘big picture’ view provides valuable new information you can’t get when zooming in on a small region.” These differences are critical for understanding how complex chemistry develops in space. They determine which molecules survive long enough to become part of forming planets and which are lost, ultimately influencing the potential for habitable environments to emerge. A Dynamic Reservoir For Future Worlds The Milky Way now appears as a dynamic system filled with vast, evolving reservoirs of icy material. These clouds are constantly shaped by stellar radiation, gravitational forces, and turbulent motion, leading to cycles of destruction and renewal. Over time, they fragment and collapse, giving rise to new stars and planetary systems while redistributing water and other key molecules throughout the galaxy. As SPHEREx continues its mission, future observations will refine this map and reveal how these icy reservoirs change over time. Each new dataset brings scientists closer to understanding the full lifecycle of matter in the galaxy, from diffuse clouds to fully formed planets. The emerging picture suggests that the ingredients for life are not rare anomalies but natural products of cosmic evolution, embedded within the very processes that shape the universe. Enjoyed this article? Subscribe to our free newsletter for engaging stories, exclusive content, and the latest news.

[skylobster]

Interstellar highways of ice !?

[materialsscienceandengineering]

Carbon nanotubes are closing the gap on copper conductivity

Carbon nanotubes are one technology that many observers believe hasn't quite lived up to the extreme hype that surrounded them when they first appeared on the scene in the late 1990s. At that time, much was made of their extraordinary electrical, thermal, and mechanical properties, with predictions that they would revolutionize materials science, electronics, and daily life. But could we be closer to realizing some of that promise? In a paper published in the journal Science, researchers describe a method for adding a chemical to carbon nanotube bundles that brings them closer to copper's ability to conduct electricity.

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