News
Interstellar Visitor 3I/ATLAS Surprises Astronomers With Growing Tail and Strange Chemistry
A mysterious interstellar comet, 3I/ATLAS (C/2025 N1), is intriguing astronomers with its large size and unusual behavior. It features a growing tail, vibrant colors, and a high carbon dioxide content. Approaching Mars in 2025, this rare object offers a unique opportunity to study materials from another star system and explore cosmic origins.
Last Updated on October 6, 2025 by Daily News Staff
A mysterious object from beyond our solar system is putting on a show for astronomers. Known as 3I/ATLAS (C/2025 N1), the comet is only the third confirmed interstellar visitor ever detected, following 1I/ʻOumuamua in 2017 and 2I/Borisov in 2019. New observations reveal that 3I/ATLAS is not only larger than expected but also behaving in ways unlike most comets we’ve seen before.
A Growing Tail and Unusual Glow
Recent telescope images show that 3I/ATLAS has developed a striking tail, extending outward as solar radiation triggers jets of gas and dust from its icy surface. Astronomers report that the comet’s coma—the hazy envelope around its nucleus—has grown brighter and more expansive in just the past few weeks.
Adding to the intrigue, observers recently captured the comet glowing green during a lunar eclipse. This emerald color is believed to come from volatile molecules such as diatomic carbon or cyanogen, which fluoresce under solar radiation. Interestingly, earlier images suggested a reddish hue, indicating that the comet may be undergoing chemical shifts as it warms.
Heavyweight Among Interstellar Wanderers
Early estimates suggest 3I/ATLAS may be far more massive than its interstellar predecessors. Some studies put its mass above 33 billion tons, making it several times larger than 2I/Borisov. The nucleus itself remains difficult to measure directly, since much of its brightness is clouded by dust and gas, but scientists agree that this is a substantial object—one of the biggest confirmed interstellar visitors yet.
A Comet Rich in Carbon Dioxide
Another surprising feature is its chemical makeup. Data from multiple telescopes, including NASA’s Hubble Space Telescope and upcoming observations with the James Webb Space Telescope, indicate that 3I/ATLAS contains an unusually high amount of carbon dioxide compared to most comets in our own solar system. This suggests it may have formed in a colder, more distant region around another star, preserving volatile ices that are rare closer to the Sun.
Mars Gets a Close Encounter
On October 3, 2025, 3I/ATLAS will make a close pass by Mars. While it will still be far from Earth—never approaching closer than 170 million miles—it will pass within observing range of the European Space Agency’s orbiters at the Red Planet. Mars Express and the ExoMars Trace Gas Orbiter are both preparing to capture images and data from this historic flyby, offering humanity a rare interplanetary perspective on an interstellar object.
What We Still Don’t Know
3I/ATLAS will reach its closest approach to the Sun on October 30, 2025, before swinging back into interstellar space. It will then slip behind the Sun from Earth’s view, making direct observations difficult until December. Even with multiple powerful telescopes watching, astronomers still face big questions:
- How large is the nucleus compared to the surrounding coma?
- What explains its unusual chemistry and shifting colors?
- Where in the galaxy did it originate before being ejected into interstellar space?
For now, scientists are treating it as a comet, though its mass, color shifts, and chemical richness continue to challenge expectations.
A Rare Opportunity
With only two other interstellar objects ever observed, each discovery gives astronomers a fleeting chance to study materials from another star system without leaving our own. 3I/ATLAS may help answer questions about how planets and comets form across the galaxy—and whether interstellar wanderers like this one could have once seeded worlds, including Earth, with the building blocks of life.
As it streaks past Mars and toward the Sun, 3I/ATLAS is reminding us just how much remains unknown about the universe beyond our stellar neighborhood.
🔗 Related Resources on 3I/ATLAS
- NASA – Interstellar Comet 3I/ATLAS Overview
- AP News – Interstellar Comet 3I/ATLAS Swings Past Mars as Spacecraft Look On
- Space.com – Scientists Capture 3I/ATLAS Growing a Tail
- The Planetary Society – What We Know About Interstellar Object 3I/ATLAS
- IFL Science – Interstellar Object 3I/ATLAS Measured to be Over 33 Billion Tons
- CBS News – Telescope Captures Interstellar Comet 3I/ATLAS
- ScienceAlert – 3I/ATLAS is Bizarre, Say 4 Powerful Telescopes
- Sky at Night Magazine – Comet 3I/ATLAS Observed by Spacecraft
🔗 Related STM Daily News Articles
- A New Interstellar Visitor: Meet 3I/ATLAS, the Third Object from Beyond Our Solar System
- 3I/ATLAS (Tag Archive)
- Comet Discovery (Tag Archive)
- Interstellar Comet (Tag Archive)
- ʻOumuamua (Related Coverage)
Science
October Meteor Showers Give Phoenix Skywatchers a Reason to Look Up
Phoenix skywatchers have several chances to catch October’s meteor showers. Here’s when to watch the Taurids and Orionids—and how moonlight affects the view.
Last Updated on October 10, 2026 by Daily News Staff
PHOENIX — October is bringing several opportunities to spot shooting stars over the Valley, with the Draconids reaching their October 8–9 peak and more meteor activity ahead.
The Draconids remain active through October 10, although viewers should expect a light display as the peak passes. Under favorable conditions, the shower typically produces only a handful of meteors per hour. timeanddate.com
Next, the Southern Taurids have an annual activity peak around October 14. Known for occasional bright fireballs, the shower continues into November. The stronger Orionids peak on the night of October 21 into the morning of October 22, typically producing 10–20 meteors per hour under dark skies. A bright Moon will interfere with this year’s display. American Meteor Society
The Orionids originate from debris left by Halley’s Comet. For Phoenix viewers, the best opportunity will be after moonset and before dawn, weather permitting. City lights will further reduce the number visible. amsmeteors.org
NASA recommends finding a viewing area away from streetlights, allowing about 30 minutes for eyes to adjust, and watching a broad stretch of sky. No telescope is needed—just a comfortable chair and patience. NASA Science
ECurious about what’s happening above us? Explore more space stories and science explainers in The Knowledge at STM Daily News.xplore more space, science and everyday
Local News
Maricopa Boil Water Advisory Lifted After Negative E. Coli Tests
Maricopa boil water advisory lifted: Global Water–Santa Cruz Water Company customers in Maricopa can resume normal tap water use after follow-up testing found no E. coli.
MARICOPA, Ariz. — A precautionary boil water advisory for Global Water–Santa Cruz Water Company customers in the city of Maricopa was lifted Thursday, October 8, after repeat testing found no E. coli in water samples. The utility announced the cancellation at approximately 2 p.m. Arizona time.
The advisory was issued October 7 after two preliminary tests indicated possible contamination. Customers were temporarily instructed to use bottled water or boil tap water for at least one minute before drinking it or using it for food preparation.
With follow-up results negative, affected customers no longer need to boil water for drinking, cooking, making ice, brushing teeth or washing dishes, according to the utility.
The advisory affected the utility’s customers in the city of Maricopa, located in Pinal County. It was not a countywide warning for Maricopa County or Phoenix.
Residents can visit Global Water Resources’ official notice page for updates or call 866-940-1102 with questions.
Automotive
Hyundai Unveils All-New Tucson With Bold New Look, Smarter Hybrid Tech
Hyundai has unveiled the all-new Tucson, bringing bolder styling, a next-generation hybrid targeting up to 42 mpg, AI-powered infotainment and the rugged new XRT PRO.
Hyundai’s popular compact SUV gets a major makeover with a targeted 42 mpg hybrid, AI-powered infotainment and a more adventurous XRT PRO model.
Hyundai is preparing the Tucson for its next chapter, unveiling an all-new version of its popular SUV with a dramatically revised design, next-generation hybrid technology and a new digital experience built around artificial intelligence.
Hyundai Motor Company introduced the all-new Tucson in New York City against the Manhattan skyline, calling the redesigned model its “boldest SUV” yet.
For buyers, however, the bigger story may be what lies beneath the new styling. Hyundai is combining improved hybrid efficiency, more advanced infotainment and additional off-road capability in an effort to make the Tucson equally comfortable handling weekday commuting, family duty and weekend adventures.
A Bolder Tucson Takes Shape
The new Tucson adopts Hyundai’s “Art of Steel” design philosophy, giving the SUV a more muscular and purposeful appearance.
Rather than simply updating the outgoing Tucson, Hyundai appears to be pushing the model toward a stronger SUV identity while maintaining the everyday practicality that has helped make the Tucson one of the company’s most important global vehicles.
The new exterior is complemented by a redesigned cabin emphasizing space, storage and easier-to-use controls. Hyundai says the interior includes flexible storage solutions and available relaxation features designed to make longer trips more comfortable.
That combination could be important in a compact SUV segment where shoppers increasingly expect vehicles to serve several roles at once — commuter, family vehicle, road-trip machine and recreational vehicle.
Hybrid Targets Up to 42 MPG
One of the most significant changes is Hyundai’s Next-generation Hybrid System.
Hyundai says the new system is targeting fuel economy of up to 42 mpg, while also attempting to preserve responsive driving performance.
If that target carries through to production specifications and official fuel-economy testing, it could make the Tucson Hybrid particularly attractive to drivers who want SUV practicality without moving to a fully electric vehicle.
The strategy also reflects a broader automotive trend. Hybrids have increasingly become an important middle ground for consumers looking to reduce fuel consumption without changing their driving and charging habits.
Final EPA fuel-economy figures and U.S.-market specifications will ultimately determine how the new Tucson compares with its competitors.
Pleos Connect Brings AI Into the Cabin
Technology is another major focus of the redesign.
The Tucson introduces Hyundai’s Pleos Connect next-generation infotainment platform, which incorporates Gleo AI, an expanding app marketplace and a redesigned user interface.
Hyundai describes Pleos Connect as an evolving digital platform rather than simply a conventional infotainment system.
That could allow the Tucson’s capabilities to expand over time as software, applications and connected services develop.
The important question for drivers will be whether all that technology actually makes everyday tasks easier. Automakers continue adding increasingly sophisticated screens and software to their vehicles, but intuitive controls and minimal driver distraction remain just as important as the number of available features.
Tucson XRT PRO Heads Further Off the Pavement
Hyundai is also expanding the Tucson’s adventurous side with the introduction of the Tucson XRT PRO.
The more rugged model adds enhanced off-road technologies, including Hyundai’s first Smart Terrain Assist, or STA.
The system is designed to help the vehicle adapt to changing terrain and provide drivers with additional confidence when leaving paved roads.
The XRT PRO could broaden the Tucson’s appeal among buyers who like the practicality of a compact crossover but want more capability for camping, outdoor recreation and light off-road travel.
More detailed specifications will help determine just how far the XRT PRO moves beyond the appearance-oriented adventure packages commonly offered in the compact SUV market.
A Major Vehicle in Hyundai’s Bigger Product Push
The importance of the new Tucson extends beyond a single model.
“Millions of families around the world count on the Hyundai TUCSON, and this is the best one we have ever built,” Hyundai Motor Company President and CEO José Muñoz said during the announcement.
Muñoz also said the Tucson begins what Hyundai describes as the most ambitious product offensive in its history.
The automaker plans to introduce more than 100 new or refreshed vehicles globally by 2030, including 58 in North America.
That makes the Tucson something of an opening act for Hyundai’s next generation of vehicles.
The Tucson Enters Its Next Era
Compact SUVs remain some of the most versatile vehicles on the market, and Hyundai appears determined to keep the Tucson competitive by improving several areas simultaneously rather than relying on styling alone.
A targeted 42-mpg hybrid powertrain could appeal to fuel-conscious drivers. Pleos Connect and Gleo AI represent Hyundai’s push toward increasingly software-driven vehicles. Meanwhile, the new XRT PRO gives the Tucson lineup a more adventurous option.
There are still important details to come, including complete U.S. specifications, EPA-certified fuel economy, trim levels, pricing and availability.
But Hyundai’s message is already clear: the next Tucson is intended to be more than a routine redesign.
It is being positioned as a showcase for where Hyundai believes the modern SUV is headed — bolder in appearance, smarter inside and more efficient underneath.
Source: Hyundai Motor Company. Specifications and fuel-economy figures discussed by Hyundai are preliminary and may vary by market. Final U.S. specifications and EPA ratings may differ.
Sources & Related Links
- Hyundai Motor Company — Official All-New Tucson Announcement
Hyundai’s original newsroom announcement covering the redesign, next-generation hybrid system, Pleos Connect, Gleo AI and Tucson XRT PRO. Hyundai
Hyundai Motor: All-New Tucson Official Announcement - Hyundai — All-New Tucson Highlights
Official product page with more detail on the “Art of Steel” design, Pleos Connect, 17-inch display, app marketplace, hybrid technology and XRT PRO. Hyundai
Explore the All-New Tucson - Hyundai USA — Tucson
Hyundai’s U.S. consumer page for Tucson information, specifications, trims and future model updates.
Hyundai USA: Tucson - PR Newswire — All-New Hyundai Tucson Press Release
The syndicated release announcing the new Tucson and Hyundai’s target of up to 42 mpg for its next-generation hybrid system. PR Newswire
Read the Original PR Newswire Release - Car and Driver — 2027 Hyundai Tucson
Independent coverage with additional U.S.-market specifications, including powertrain, interior, cargo and XRT Pro information. Car and Driver
Car and Driver: 2027 Hyundai Tucson Details - Road & Track — 2027 Hyundai Tucson
Additional independent coverage of the Tucson redesign, hybrid powertrain, Pleos Connect and XRT Pro off-road features. Road & Track
Road & Track: New Hyundai Tucson Details
