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Category: space – Page 4

Radiowave bursts linked to onset of intense auroral storms

A University of Southampton study has revealed an intriguing new clue in the mystery of what triggers periods of very intense, brightly colored activity during displays of both the southern and northern lights.

Known as a “magnetospheric substorm,” this awe-inspiring phenomenon, which blankets the night sky in green and purple, is almost always preceded by what space scientists call “auroral beads”—a necklace-like wave of multiple luminous points of light which eventually evolve into the storm.

Southampton scientists have now shown there is a link between these auroral beads and the intensity of low frequency radio waves above the aurora in Earth’s magnetosphere—a vast area around our planet that is dominated by its magnetic field. Their findings are published in Nature Communications.

Icy hot plasmas: Fluffy, electrically charged ice grains reveal new plasma dynamics

When a gas is highly energized, its electrons get torn from the parent atoms, resulting in a plasma—the oft-forgotten fourth state of matter (along with solid, liquid, and gas). When we think of plasmas, we normally think of extremely hot phenomena such as the sun, lightning, or maybe arc welding, but there are situations in which icy cold particles are associated with plasmas. Images of distant molecular clouds from the James Webb Space Telescope feature such hot–cold interactions, with frozen dust illuminated by pockets of shocked gas and newborn stars.

Now a team of Caltech researchers has managed to recreate such an icy plasma system in the lab. They created a plasma in which electrons and positively charged ions exist between ultracold electrodes within a mostly neutral gas environment, injected water vapor, and then watched as tiny ice grains spontaneously formed.

They studied the behavior of the grains using a camera with a long-distance microscope lens. The team was surprised to find that extremely “fluffy” grains developed under these conditions and grew into fractal shapes—branching, irregular structures that are self-similar at various scales. And that structure leads to some unexpected physics.

CH$_3$OH and HCN in Interstellar Comet 3I/ATLAS Mapped with the ALMA Atacama Compact Array

CH_3OH and HCN in Interstellar Comet 3I/ATLAS Mapped with the ALMA Atacama Compact Array: Distinct Outgassing Behaviors and a Remarkably High CH_3OH/HCN Production Rate Ratio.

We report the detection of methanol (CH$_3$OH) toward interstellar comet 3I/ATLAS using the Atacama Compact Array of the Atacama Large Millimeter/Submillimeter Array (ALMA) on UT 2025 August 28, September 18 and 22, and October 1, and of hydrogen cyanide (HCN) on September 12 and 15. These observations spanned pre-perihelion heliocentric distances ($r_H$) of 2.6 — 1.7 au. The molecules showed outgassing patterns distinct from one another, with HCN production being depleted in the sunward hemisphere of the coma, whereas CH$_3$OH was enhanced in that direction. Statistical analysis of molecular scale lengths in 3I/ATLAS indicated that CH$_3$OH included production from coma sources at $L_p258$ km at 99% confidence, although low signal-to-noise on long baselines prevented definitively ruling out CH$_3$OH as purely a parent species.

BOMBSHELL Anti-Gravity Documents Prove Classified Research Continued!

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Electric Propulsion Study https://apps.dtic.mil/sti/tr/pdf/ADA227121.pdf

This Electric Propulsion Study confirms the controversial Biefield-Brown Effect was taken extremely seriously by the US Aerospace/Defense sectors as a highly feasible method for exotic, next generation propulsion systems that utilise field propulsion through electromagnetic-gravitational wave coupling. This document was prepared by Science Applications International Corporation (SAIC) for the Astronautics Laboratory (AFSC) Air Force Space Technology Center, Space Systems Division, Air Force Systems Command.

Read the full PDF here.
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Close-up images show how stars explode in real time

Astronomers have captured images of two stellar explosions—known as novae—within days of their eruption and in unprecedented detail. The breakthrough provides direct evidence that these explosions are more complex than previously thought, with multiple outflows of material and, in some cases, dramatic delays in the ejection process.

The international study, published in the journal Nature Astronomy, used a cutting-edge technique called interferometry at the Center for High Angular Resolution Astronomy (CHARA Array) in California. This approach allowed scientists to combine the light from multiple telescopes, achieving the sharp resolution needed to directly image the rapidly evolving explosions.

“The images give us a close-up view of how material is ejected away from the star during the explosion,” said Georgia State’s Gail Schaefer, director of the CHARA Array. “Catching these transient events requires flexibility to adapt our nighttime schedule as new targets of opportunity are discovered.”

Frequent flares from TRAPPIST-1 could impact habitability of nearby planets

Like a toddler right before naptime, TRAPPIST-1 is a small yet moody star. This little star, which sits in the constellation Aquarius about 40 light-years from Earth, spits out bursts of energy known as “flares” about six times a day.

New research led by the University of Colorado Boulder takes the deepest look yet at the physics behind TRAPPIST-1’s celestial temper tantrums. The team’s findings could help scientists search for habitable planets beyond Earth’s solar system.

The researchers used observations from NASA’s James Webb Space Telescope and computer simulations (models) to understand how TRAPPIST-1 produces its flares—first building up magnetic energy, then releasing it to kick off a chain of events that launches radiation deep into space. The results could help scientists unravel how the star has shaped its nearby planets, potentially in drastic ways.

Open-source framework enables addition of AI to software without prompt engineering

Developers can now integrate large language models directly into their existing software using a single line of code, with no manual prompt engineering required. The open-source framework, known as byLLM, automatically generates context-aware prompts based on the meaning and structure of the program, helping developers avoid hand-crafting detailed prompts, according to a conference paper presented at the SPLASH conference in Singapore in October 2025 and published in the Proceedings of the ACM on Programming Languages.

“This work was motivated by watching developers spend an enormous amount of time and effort trying to integrate AI models into applications,” said Jason Mars, an associate professor of computer science and engineering at U-M and co-corresponding author of the study.

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