Observations made with the Atacama Large Millimeter/submillimeter Array (ALMA) detected strong methanol signatures in the comet’s coma and found an exceptionally high ratio of methanol to hydrogen cyanide. The measured ratios of about 124 and 79 on two observation dates rank among the highest recorded for comets observed at radio wavelengths.

The finding provides another chemical clue from an object that originated outside the Solar System. Because 3I/ATLAS formed around another star before entering interstellar space, its composition offers astronomers a rare opportunity to compare planetary-building material from another system with the comets found around the Sun.

Methanol stands out in the comet’s chemistry

The researchers detected methanol, or CH₃OH, together with hydrogen cyanide, or HCN, as 3I/ATLAS approached the Sun in 2025.

When sunlight warms a comet, frozen material sublimates and produces a cloud of gas and dust around the nucleus. Spectroscopic observations of that coma allow astronomers to identify individual molecules and estimate how they are being released.

In 3I/ATLAS, methanol was particularly prominent relative to HCN. The researchers found CH₃OH/HCN production-rate ratios of 124⁺³⁰₋₃₄ and 79⁺¹¹₋₁₄, depending on the observation date. Only the unusual Solar System comet C/2016 R2 (PanSTARRS) has shown a higher enrichment in comparable radio observations.

The result does not mean methanol is unique to 3I/ATLAS. Methanol is commonly detected in comets and can form on icy dust grains in interstellar environments. What makes 3I/ATLAS unusual is the relative abundance revealed by its molecular fingerprint.

Icy grains may be releasing additional methanol

The ALMA observations also provided information about where the molecules appear to originate.

The distribution of methanol suggested that at least some of its production may occur away from the nucleus, within the comet’s coma. Statistical analysis indicated production from coma sources more than about 258 kilometers from the nucleus at 99% confidence, although the researchers could not completely rule out direct production from the nucleus because of limitations in the observations.

The researchers suggest that icy grains surrounding the nucleus may act as miniature cometary sources, releasing methanol as they are warmed by sunlight.

Hydrogen cyanide behaved differently. Its distribution was consistent with direct sublimation from the nucleus, providing a contrast with the more extended methanol production.

The distinction gives astronomers a more detailed picture of how different molecules are stored and released as an interstellar comet approaches the Sun.

The chemistry points to a different birthplace

The unusually high methanol-to-HCN ratio suggests that the ices incorporated into 3I/ATLAS formed under conditions different from those experienced by most known Solar System comets.

Those conditions could reflect differences in temperature, chemistry or the availability of molecular ingredients in the planetary system where 3I/ATLAS originated. The observations cannot identify its parent star or reconstruct its entire formation history, but they provide measurable evidence that its chemical environment differed from the Solar System’s.

Earlier observations have already shown other unusual characteristics. The James Webb Space Telescope found a coma strongly dominated by carbon dioxide when 3I/ATLAS was still far from the Sun. Later observations also revealed unusual gas-outflow behavior.

Separate observations with the IRAM 30-meter telescope detected methanol, carbon monoxide, formaldehyde, methyl cyanide and other molecules, while finding that several molecular abundances were at the upper end of ranges measured in Solar System comets.

A rare chemical sample from another planetary system

3I/ATLAS is only the third confirmed interstellar object observed passing through the Solar System. It was discovered in July 2025 by the ATLAS survey in Chile.

Unlike spacecraft missions that return samples from bodies within our planetary system, observations of 3I/ATLAS allow astronomers to study material that formed around another star without physically traveling to another planetary system.

Its chemical composition therefore serves as a kind of remote sample of planetary formation elsewhere in the galaxy.

The latest measurements do not establish exactly where 3I/ATLAS originated or what type of planetary system produced it. They instead add methanol enrichment to a growing list of characteristics that distinguish the interstellar comet from many of its Solar System counterparts.

As astronomers continue analyzing observations from different instruments, the unusual chemistry of 3I/ATLAS could help refine models of how icy bodies form and evolve around other stars.

Reporting Credit: National Radio Astronomy Observatory and ALMA — methanol and hydrogen-cyanide observations; NASA Technical Reports Server — accepted research manuscript and observational results; IRAM — independent molecular observations and compositional analysis.

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Study Design and Observation

The eclipse, sometimes called a blood moon, was monitored by astronomers including Dr. C. Alex Young, associate director for science communication at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Observational data were collected from various locations in the Asia-Pacific region and the Americas. The event comprised three stages: penumbral (subtle dimming), partial (partial coverage by Earth’s shadow), and total eclipse, with totality representing full immersion in the shadow.

Key Timing and Viewing Notes

For observers in regions of totality, no specialized equipment is necessary, though binoculars or small telescopes can enhance detail visibility. The penumbral phase began at 3:44 a.m. ET, partial eclipse at 4:50 a.m. ET, and totality peaked at 6:34 a.m. ET, with the event concluding at 9:23 a.m. ET. Visibility depends on local weather conditions, as cloud cover may obstruct observation.

Cultural and Astronomical Context

The March full moon carries multiple traditional names, including the “worm moon” in North America and Europe, reflecting seasonal ecological activity. Indigenous groups near the Great Lakes, such as the Ojibwe, call it the “snow crust moon,” while some Plains tribes refer to it as the “sore eye moon,” linked to sunlight glare on snow.

Future Lunar and Solar Eclipses

Following this lunar event, NASA reports upcoming eclipses in 2026–2027, including a total solar eclipse on August 12, 2026, visible from Greenland, Iceland, Spain, Russia, and parts of Portugal. Subsequent eclipses include a partial lunar eclipse in August 2027, an annular solar eclipse on February 6, 2027, and a total solar eclipse on August 2, 2027, spanning Spain, North Africa, Egypt, and Saudi Arabia. Each eclipse provides opportunities for observational study and public engagement with celestial phenomena.

Limitations and Observational Considerations

Observation of lunar eclipses depends on geographic location, local time, and weather conditions. While the red coloration results from Earth’s shadow filtering sunlight through the atmosphere, variations in atmospheric conditions may affect the hue and intensity of the observed phenomenon.

Broader Context

Total lunar eclipses offer researchers and the public opportunities to observe planetary alignment effects in real time. These events also contribute to long-term studies of Earth-Moon-sun interactions, atmospheric scattering, and cultural astronomy, providing both scientific and educational insights.

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NASA’s Curiosity rover has stumbled upon something unexpected—and possibly game-changing—on Mars: mysterious “boxwork” patterns etched into the Martian surface, deep inside a region called Gale Crater. These strange geometric ridges may hold clues to how water once moved beneath the Red Planet’s surface—and why it eventually vanished.

And here’s the kicker: scientists have never seen anything quite like this on Mars before.

A Closer Look at the “Boxwork” Puzzle

The rover recently reached an area on Mount Sharp, a towering 3-mile-high peak Curiosity has been slowly climbing since 2014. There, it found crisscrossing ridges—some just a few inches tall—forming what geologists call boxwork patterns. These formations, carved into the Martian bedrock, are believed to have been created billions of years ago, when water still flowed beneath the planet’s surface.

Here’s how scientists think it happened:

• Groundwater slowly trickled through cracks in the rock.
• As the water moved, it left behind minerals, which filled the cracks and hardened.
• Over time, Martian wind eroded the softer surrounding rock, leaving behind a stubborn, fossil-like network of mineral ridges.

NASA says these hardened ridges have stood the test of time thanks to what it poetically calls “eons of sandblasting” from windstorms.

A Discovery Unlike Anything Else on Mount Sharp

Curiosity has seen many formations during its journey, but scientists say these particular patterns are unusual—not just for their appearance, but because they’ve only been found in this specific spot.

“A big mystery is why the ridges were hardened into these big patterns and why only here,” said Ashwin Vasavada, Curiosity’s project scientist at NASA’s Jet Propulsion Laboratory.

So far, no orbiting spacecraft and no previous rover stops have captured anything similar elsewhere on the mountain.

Time Travel Through Mars’ Climate History

What makes this discovery even more intriguing is where the rover is currently exploring—a layer of rock rich in magnesium sulfates, a salty mineral that typically forms as water evaporates.

This region represents a transitional period in Mars’ ancient climate, when the planet was slowly drying out. Yet, the boxwork ridges suggest that even during this drying phase, underground water was still present—and reshaping the landscape.

NASA notes that these layered rocks essentially serve as a Martian timeline, allowing scientists to “travel through time” as the rover ascends from older to younger rock formations.

A Surprising Comeback of Salty Veins

Another clue is giving scientists reason to pause: veins of calcium sulfate, a salt left behind by groundwater, are making a return in the bedrock.

“These calcium sulfate veins used to be everywhere, but they more or less disappeared as we climbed higher up Mount Sharp,” said Abigail Fraeman, Curiosity’s deputy project scientist. “The team is excited to figure out why they’ve returned now.”

Until now, these mineral veins hadn’t been seen in sulfate-rich layers—making their reappearance a tantalizing mystery.

A Mission That Keeps Delivering

Launched in 2011 and landing on Mars in 2012, Curiosity’s mission has been nothing short of historic. From the very beginning, its goal has been to find out whether Mars ever had the right conditions to support life.

And early on, it did just that—uncovering chemical and mineral evidence of ancient, potentially habitable environments. Now, over a decade later, the rover is still unearthing new surprises, raising fresh questions, and giving us a better picture of what Mars may have once looked like: a planet shaped by rivers, lakes, and maybe even oceans.

As Curiosity continues its slow climb up Mount Sharp, one thing is certain: Mars isn’t done telling its story.

Source: FOX News – NASA’s Curiosity rover discovers unusual ‘boxwork’ patterns on Mars linked to ancient waterways

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In 2011, a unique Martian meteorite known as “Black Beauty” was discovered in the Sahara Desert. This extraordinary space rock, officially named NWA 7034, has now unveiled one of its most groundbreaking secrets: evidence of ancient water on Mars, dating back 4.45 billion years. The discovery, centered on a zircon grain within the meteorite, suggests that Mars’ ancient environment may have supported life, similar to early Earth.

A Window Into Mars’ Watery Past

The zircon grain found in Black Beauty offers the oldest direct evidence of water on Mars, revealing traces of hot water that might have created habitable environments like hot springs. Such conditions are closely linked to the emergence of life on Earth, opening new possibilities for understanding Mars’ potential habitability in its ancient past.

Jack Gillespie, lead author of the study published in Science Advances, stated, “Our data suggests the presence of water in the crust of Mars at a comparable time to the earliest evidence for water on Earth’s surface, around 4.4 billion years ago.” This discovery highlights Mars as a planet that once had warm, wet environments capable of supporting life.

The Significance of Black Beauty

Black Beauty, ejected from Mars 5 to 10 million years ago by a cosmic impact, has been a critical source of information about the red planet. The meteorite contains hundreds of rock and mineral fragments, each representing different aspects of Mars’ 4.5-billion-year history. Among these fragments are some of the oldest known pieces of Martian crust, including ancient zircons that serve as “time capsules” for understanding the planet’s evolution.

Dr. Aaron Cavosie, study coauthor and planetary scientist at Curtin University, explained, “The Black Beauty meteorite is the only source of pieces for the geological puzzle of pre-Noachian Mars.” This period, dating from 4.5 to 4.1 billion years ago, is critical for understanding Mars’ early history and the potential for life.

Unlocking Secrets Through Zircon

Zircon, a durable mineral used in various Earth-based applications like jewelry and ceramics, plays a pivotal role in studying Mars’ past. The zircon in Black Beauty remained unaltered during its fiery journey to Earth, providing pristine insights. By analyzing the uranium-to-lead ratio within the zircon grain, scientists determined its age and discovered unusual amounts of iron, sodium, and aluminum — elements typically associated with water-rich environments.

“We could tell by the patterns of how these elements are found inside the zircon that they were incorporated as the grain grew, like layers in an onion,” Cavosie noted. These findings suggest that hydrothermal systems, powered by volcanic activity, may have existed on Mars 4.45 billion years ago, creating liquid water environments beneath the surface.

Implications for Life on Mars

Hydrothermal systems on Earth, such as hot springs and deep-sea vents, are known to support diverse ecosystems and are believed to have fostered early life. If similar systems existed on ancient Mars, they might have created habitats capable of supporting life. “Our new study shows that the crust of Mars was warm and wet in the pre-Noachian period, meaning that habitable environments may have existed at that time,” Cavosie said.

Looking Forward: Future Exploration

While Black Beauty has provided remarkable insights, scientists are eager to gather more data directly from Mars. The Perseverance rover, currently exploring Jezero Crater, is collecting rock samples that could offer further evidence of ancient hydrothermal activity and microbial life. These samples, once returned to Earth, will enable even more detailed analysis than what meteorites like Black Beauty can provide.

Briony Horgan, planetary scientist and co-investigator on the Perseverance mission, emphasized the importance of this research: “As much as the meteorites can tell us, we can do even better with a carefully selected and intact rock sample from a known location on Mars with good geologic context.”

A New Chapter in Mars Exploration

Black Beauty’s secrets continue to fuel scientific curiosity and pave the way for future exploration. The evidence of ancient water and hydrothermal systems provides a strong foundation for the hypothesis that Mars once had conditions suitable for life. With ongoing missions and advanced technology, the red planet’s history is slowly being pieced together, offering a glimpse into its potential to harbor life billions of years ago.

Source

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