Stellar

Astronomers report that a stellar remnant, described as a zombie star, is repeatedly flashing toward Earth as it wobbles, with the pulses apparently caused by a large expelled cloud of gas. Researchers are calling the observations groundbreaking, saying they offer a rare look at the behavior of a star after it has survived or undergone an explosive event.

2I/Borisov, detected in 2019 by amateur astronomer Gennady Borisov, is the first confirmed interstellar comet to pass through our solar system. Originating from an unknown star system, it gave astronomers a rare chance to analyze the chemical makeup of a body formed around another star, offering insights into how planets and comets may form elsewhere in the galaxy.

The SETI Institute is explaining how astronomers can tell whether a star has consumed its own planets. Lithium naturally disappears inside stars over time, making it unreliable as evidence, but beryllium lasts far longer. Its presence can therefore indicate that rocky worlds were swallowed, offering a new chemical clue in stellar detective work.

A poem titled 'Ploughing Stellar Dams in Bribery Songs' has been published and shared with poetry and writing communities, tagged under literature, art and disability-inclusive creative circles. The surreal title pairs cosmic imagery with political corruption themes, and readers in online poetry groups are circulating the piece and discussing its striking language and symbolism.

Astronomers with the Planets Around Solar Twins/Analogs (PASTA) project have published a third study examining chemical clock relations in solar analogs that host planets. The work uses the chemical composition of Sun-like stars as a way to estimate their ages and compare planet-bearing systems with those without. It forms part of an ongoing effort to characterise which Sun-like stars are most likely to host planetary systems.

Astronomers report that enigmatic flashes of X-rays in the sky may come from the catastrophic merger of two stars, producing an ultra-dense, ultra-magnetic remnant known as a magnetar. The findings emerged from a collaboration between Chinese and European science missions, and are drawing attention among space researchers and enthusiasts discussing what the discovery reveals about how magnetars form.

Astronomers report what could be the first known case of a planet forming around a dead star. Observations of debris orbiting the stellar remnant suggest a new world may be coalescing from the wreckage, a scenario never before recorded. If confirmed, the finding would reshape understanding of how planets can form around collapsed stars.

Astronomers have observed dwarf stars consuming material from orbiting companion bodies, a phenomenon reported by Scientific American. The observations offer a rare direct look at how stellar pairs interact, with stars stripping and absorbing matter from smaller partners in their orbit. Space and science communities are sharing the findings, discussing what they reveal about stellar evolution and the violent dynamics of binary and multi-body star systems.

New research suggests neutrinos, often called ghost particles because they pass through matter almost unnoticed, may play a decisive role in whether a massive dying star detonates as a supernova or collapses directly into a black hole. Scientists studying stellar collapse say the behaviour of these elusive particles during the core's final moments could tip the balance between explosion and total gravitational collapse.

The Rochester Institute of Technology is holding an Astrophysical Sciences and Technology Colloquium focused on a computational tool that enables Markov Chain Monte Carlo (MCMC) applications in characterizing stellar parameters. The talk highlights how statistical sampling methods are increasingly being applied in astronomy to estimate properties of stars more accurately.

The Rochester Institute of Technology is hosting a colloquium in its Astrophysical Sciences and Technology series focused on a tool enabling Markov Chain Monte Carlo (MCMC) applications in stellar parameter characterization. The talk will cover how MCMC statistical methods are applied to determine properties of stars, a key technique in modern astrophysics research for extracting reliable parameters from observational data.

A discussion is under way about which biological organisms would make the best candidates for humanity's first missions beyond the solar system, arguing that humans themselves are unlikely to be the first biological astronauts sent that far. The piece points to research on hardy life forms suited to long-duration interstellar conditions, prompting debate about what future deep-space exploration might actually look like.

The SETI Institute is highlighting a new episode of its Big Picture Science programme, 'Skeptic Check: Sunny Daze', examining sunlight's effects on human health. The sun bombards Earth with radiation that can be harmful in excess, but recent studies suggest moderate exposure offers real benefits. The discussion explores the balance between the risks and rewards of catching some rays.

Cleveland's Great Lakes Science Center has announced its fall DOME Movies After Dark lineup, headlined by Christopher Nolan's 'Interstellar' and Jordan Peele's 'Nope'. The series screens popular films on the center's dome theater, giving moviegoers an immersive nighttime format. The announcement was reported by Cleveland.com for the Cleveland area.

Astronomers are highlighting MHO 2147, a stellar jet produced by a young star buried in a dense molecular cloud some 10,000 light years away in the constellation Sagittarius. Deep infrared observations reveal a curved, knotty jet whose winding shape points to complex hydrodynamic interactions between the outflow and its surrounding gas, making it a striking example of how newborn stars shape their environments.

Scientists at the Institute of Physics of the Earth of the Russian Academy of Sciences are highlighting what observations of gas falling into a dead star reveal about the universe. Such accretion events around stellar remnants like white dwarfs or neutron stars help researchers test physics under extreme gravity and better understand how matter behaves in space.

The Sharpless 155 complex, widely known as the Cave Nebula, is being discussed as a striking example of stellar nucleosynthesis and interstellar dynamics. The emission nebula sits roughly 2,400 light-years from Earth in the constellation Cepheus, where its distinctive structure marks regions of active star formation and the processing of elements inside young, massive stars.

Stellar Cyber has released version 7.0 of its security operations platform, introducing case metrics aimed at AI-driven security operations centers. The update lets SOC teams measure and track the performance of cases handled with AI assistance. Details are thin so far, with the news circulating mainly through security industry channels and drawing limited attention.

The question of whether hypernovas are real is circulating in science coverage. Hypernovas are extremely energetic supernova explosions, typically linked to the collapse of massive stars, and astronomers widely accept them as real events observed through gamma-ray bursts and bright stellar explosions. The current discussion appears to reflect general public interest in confirming the science behind these cosmic phenomena rather than a specific new discovery.

Stellar Entertainment has announced an expanded partnership with Azerbaijan Airlines to deliver a new in-flight entertainment (IFE) experience for passengers. The aviation industry news was reported by Apex, a publication covering passenger experience and airline technology. The deal signals continued investment by the Azerbaijani flag carrier in modernising its onboard passenger services, though details of the new offering have not yet been widely reported.