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Astronomy News 8 November 2025 - 12 November 2025

Alien Probe or Cosmic Relic? Interstellar Comet 3I/ATLAS Baffles Scientists (updated 27.10.2025)

Comet 3I/ATLAS on Nov. 12, 2025: Tail Keeps Growing, First Radio Signal Confirmed, and How to See the Interstellar Visitor

Published: 12 November 2025 The interstellar comet 3I/ATLAS is putting on fresh science today. New images show its ion tail lengthening and sharpening as the object climbs back into our predawn sky after its late‑October swing around the Sun. Meanwhile, astronomers have confirmed the first radio detection from this visitor—evidence of ordinary comet chemistry rather than extraterrestrial tech. Here’s what’s new, why it matters, and how to spot it. Space+1 Today’s key updates What the new images show Today’s coverage features a crisp sequence from Nov. 10–11: against moonlit, low‑altitude conditions, 3I/ATLAS displays a brighter nucleus and a longer, well‑defined
12 November 2025
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Severe G4 Solar Storm Lights Up Skies: Northern Lights Visible Across U.S., Southern Lights in Australia — Where to Watch Tonight (Nov. 12, 2025)

Severe G4 Solar Storm Lights Up Skies: Northern Lights Visible Across U.S., Southern Lights in Australia — Where to Watch Tonight (Nov. 12, 2025)

What’s happening The Sun’s recent burst of activity sent a train of CMEs toward Earth. Overnight, the storm escalated to G4 (severe) levels, which NOAA’s Space Weather Prediction Center (SWPC) confirmed at 01:20 UTC on Nov. 12 (8:20 p.m. EST, Nov. 11). Forecasters say geomagnetic storming “is anticipated to continue into the night,” keeping aurora chances elevated. NOAA Space Weather Prediction Center The severe watch was posted ahead of time due to a sequence of CMEs—including one tied to an X5.1‑class solar flare at 10:04 UTC on Nov. 11—with forecasters flagging uncertainty around the exact arrival timing but high confidence
12 November 2025
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Sky‑Spectacle Alert: Rare Northern Lights Could Paint U.S. Skies Tonight—Here’s the Science, the Map and the Expert Warnings You Need

Night Sky Tonight, November 12, 2025: Severe Auroras Possible, Taurid ‘Fireballs,’ and a Close Mercury–Mars Pairing

Updated: Wednesday, November 12, 2025 TL;DR (What to watch tonight) Breaking: Severe geomagnetic storm could supercharge tonight’s auroras The U.S. Space Weather Prediction Center reports G4 (Severe) geomagnetic storm levels were reached at 01:20 UTC on Nov. 12, with storming expected to continue into the night. In practical terms, that greatly boosts the odds of seeing the northern lights unusually far south (or the southern lights farther north in Australia/New Zealand) when local skies are dark and clear. Keep watch after dusk, around local midnight, and toward dawn; auroras can surge in waves. NOAA Space Weather Prediction Center NOAA also
12 November 2025
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Science Breakthroughs That Rocked July 21–22, 2025. News Roundup.

Science Today — Nov. 12, 2025: Severe Auroras Sweep the Globe, Blue Origin Targets New Glenn Launch, Webb Spots Organic “Life Seeds” Beyond the Milky Way, Three Earth‑Size Worlds Found in a Two‑Sun System, Enceladus’ Ocean Looks Long‑Lived, and Earth’s Hidden Geology Fuels Ocean Volcanoes

Roundup of the biggest science stories breaking on November 12, 2025. From a rare G4 geomagnetic storm lighting up the skies to fresh clues about life-friendly chemistry and planetary formation, here’s what matters — and why. At a glance 1) A rare G4 geomagnetic storm paints the skies — and could return tonight The National Oceanic and Atmospheric Administration’s Space Weather Prediction Center reports that G4 (Severe)geomagnetic storm levels were reached at 01:20 UTC on Nov. 12. Forecasters say CME (coronal mass ejection) impacts are ongoing, and G1–G4 conditions are possible through the night, meaning another widespread aurora display remains on the table. NOAA
12 November 2025
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3I/ATLAS Today (Nov. 11, 2025): Interstellar Comet Reappears with Growing Ion Tail, Morning-Sky Return & Rumor Control

3I/ATLAS Today (Nov. 11, 2025): Interstellar Comet Reappears with Growing Ion Tail, Morning-Sky Return & Rumor Control

Updated: November 11, 2025 Key points at a glance What’s new today A longer, sharper tail. Astrophysicist Gianluca Masi reports that 3I/ATLAS’s ion tail has lengthened to at least 0.7°, with an anti‑tail also apparent in stacked exposures taken this morning (Nov. 11) from Italy. The session was conducted at low altitude above the eastern horizon under a bright Moon, underscoring just how active and structured the comet has become post‑perihelion. The Virtual Telescope Project 2.0 Visible again before dawn. As predicted, 3I/ATLAS has returned to the morning sky, now drifting through Virgo in the hours before sunrise. BBC Sky
11 November 2025
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Interstellar Comet 3I/ATLAS: A Visitor from Beyond the Solar System

Comet 3I/ATLAS Today (Nov. 10, 2025): First Radio Signal Confirmed, Fresh Jet/Tail Images & What to Watch Next

Updated: November 10, 2025 — No threat to Earth; closest approach remains mid‑December. Key points at a glance What’s new today (Nov. 10) Radio proof of “cometness.” After weeks of speculation, astronomers have the clearest radio evidence yet that 3I/ATLAS behaves like a normal comet: MeerKAT detected hydroxyl (OH) absorption at 1665 and 1667 MHz during a deep observation on Oct. 24 while the object was near the Sun in the sky. OH is produced when water from a comet’s coma is broken apart by sunlight, and these specific radio lines are a textbook marker of that process. The team also notes earlier
10 November 2025
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Alien Probe or Cosmic Relic? Interstellar Comet 3I/ATLAS Baffles Scientists (updated 27.10.2025)

Interstellar Comet 3I/ATLAS on Nov. 9, 2025: Tail Mystery, New Jet Images, and Where to Look This Week

Updated: November 9, 2025 What’s new today Today’s snapshot: why the comet’s look is confusing Some Nov. 5–9 images show a compact coma with little obvious dust tail, which has fueled social-media claims that 3I/ATLAS is behaving “unlike a comet.” But experts caution that viewing geometry matters: a tail can be foreshortened or lost in glare, and gas emissions can dominate the appearance around perihelion. Two days ago Space.com quoted Lowell Observatory’s Qicheng Zhang: there’s no solid evidence the coma “changed color”; instead, the gas coma is simply contributing more to the comet’s brightness. Meanwhile, a fresh deep stack highlighted
9 November 2025
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Rare Interstellar Comet 3I/ATLAS – a 10-Billion-Year-Old Time Capsule – Flies Past Mars

Comet 3I/ATLAS Today (Nov. 9, 2025): Post‑Perihelion Status, New Spacecraft Images, Visibility Guide — and What’s Hype vs Fact

Published: November 9, 2025 Comet 3I/ATLAS (C/2025 N1) — only the third confirmed interstellar object to sweep through our solar system — has reemerged from behind the sun and is sliding into the predawn sky this week. Fresh spacecraft imagery, a flurry of social media claims about its “missing tail,” and ongoing questions about color changes have made it the most watched rock‑ice visitor of the season. Here’s what’s new today, what’s reliable, and how to see it yourself. Space Key updates on Nov. 9 What astronomers agree on Fact‑check: today’s most shared claims “It has no tail — must
9 November 2025
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Sharper Black Hole Images Could Put Einstein’s Gravity to the Test: New Study Maps What Future Telescopes Must See (7 Nov 2025)

Brighter Than 10 Trillion Suns: Record Black Hole Flare 10 Billion Light‑Years Away

Date: November 7, 2025 Key points What happened—and why this one is different A Caltech‑led team reports an extraordinary flare from the supermassive black hole in AGN J2245+3743, first seen rising dramatically in 2018 and now recognized as a record‑setter for both luminosity and distance. At peak, it shone with the light of ~10 trillion suns, unmistakably towering above the AGN’s usual variability. California Institute of Technology+1 The peer‑reviewed study, published November 4, 2025 in Nature Astronomy, quantifies just how extreme the event is: the source brightened by more than a factor of 40, radiating a cumulative ~10⁵⁴ ergs—on par
8 November 2025
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Sharper Black Hole Images Could Put Einstein’s Gravity to the Test: New Study Maps What Future Telescopes Must See (7 Nov 2025)

Sharper Black Hole Images Could Put Einstein’s Gravity to the Test: New Study Maps What Future Telescopes Must See (7 Nov 2025)

Published: November 7, 2025 What happened today A wave of coverage on Friday highlighted a new Nature Astronomy study that sets a concrete target for the next generation of black hole images: if upcoming telescopes can reach percent‑level fidelity, they could tell Einstein’s black holes apart from a range of look‑alikes predicted by alternative theories of gravity. The paper—published November 5—uses advanced simulations to show that when the mismatch between images exceeds roughly 2–5%, future instruments should be able to rule out many non‑Einstein models. Nature Today’s recaps emphasize what this means in practice: sharper “shadow” images—the dark silhouette encircled
8 November 2025
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Don’t Miss October 2025’s Super Hunter’s Moon – A Dazzling Full Moon Spectacle

Nov. 7, 2025: Beaver Supermoon Meets Taurid Fireballs — What to See Tonight and Why California’s Coasts Are on Alert

Date: November 7, 2025 Key points What’s happening now (Nov. 7) The Beaver Moon—November’s traditional full moon—was not only full on Wednesday but occurred within hours of perigee, making it the largest supermoon of 2025. That timing boosted apparent size and brightness compared with a typical full moon. While the precise moment of fullness has passed, the Moon remains strikingly bright tonight, an easy target for the naked eye. Space Photographers and stargazers worldwide have already shared images from this week’s show, underscoring how prominent the Moon looked at moonrise and moonset. Expect a similarly photogenic, near‑full disk this evening.
8 November 2025
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Alien Probe or Cosmic Relic? Interstellar Comet 3I/ATLAS Baffles Scientists (updated 27.10.2025)

3I/ATLAS Today (Nov. 7, 2025): New green-glow image, ‘color‑change’ myth debunked, and where to see the interstellar comet now

Updated: Nov. 7, 2025 — This roundup focuses on developments reported today (7.11.2025). Key updates at a glance What scientists reported today Green glow, “hidden” tail—here’s the physics. A new image captured with the Lowell Discovery Telescope shows 3I/ATLAS brightest through a filter sensitive to diatomic carbon (C₂), which fluoresces green in sunlight. The dust tail isn’t gone—you’re seeing it almost head‑on, so it blends with the coma and appears subdued. That geometry explains images where the tail seems to “disappear.” Live Science No, it hasn’t “changed color.” A preprint that compared sun‑skirting observations led to headlines about dramatic hue
8 November 2025
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Stock Market Today

Walmart stock jumps to $131 as traders brace for CPI and Feb. 19 earnings

Walmart stock jumps to $131 as traders brace for CPI and Feb. 19 earnings

7 February 2026
Walmart shares rose 3.3% Friday to $131.18, up 10% since Jan. 30, as the Dow closed above 50,000 for the first time. The retailer’s market value crossed $1 trillion this week. Investors await January inflation data on Feb. 13 and Walmart’s quarterly results on Feb. 19 for signs of continued momentum.
Caterpillar stock price jumps 7% to $726 as Dow cracks 50,000 — what matters next week

Caterpillar stock price jumps 7% to $726 as Dow cracks 50,000 — what matters next week

7 February 2026
Caterpillar shares surged 7.1% to $726.20 Friday, driving the Dow above 50,000 for the first time. The move erased recent losses and followed insider selling by Group President Bob De Lange earlier in the week. Deere and CNH Industrial also gained as investors rotated into industrial stocks. Markets await next week’s U.S. jobs and inflation data.
Amazon stock slides as $200B AI spending plan meets cautious profit outlook

Amazon stock slides as $200B AI spending plan meets cautious profit outlook

7 February 2026
Amazon shares fell 9% Friday after the company announced plans for $200 billion in 2026 capital spending, mainly for AWS and AI, and issued a first-quarter profit outlook below estimates. The stock drop could erase $200 billion in market value. Fourth-quarter net sales rose 14% to $213.4 billion, while free cash flow declined due to higher spending on AI infrastructure.
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