The Astronomical Journal
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Magnetic field helps binary star systems form, new simulations indicate
Magnetic field helps binary star systems form, new simulations indicate Sadie Harley Scientific Editor Alexander Pol Deputy Editor New simulations show that interactions with a magnetic field can work to decrease the distance between still forming binary protostars. These results can help explain the characteristics of the binary star systems observed in the Milky Way. The results can also be extrapolated to binary black holes, giving insights into how supermassive black holes evolve.
Interstellar object 3I/ATLAS reveals no technosignatures in seven-hour radio scan
Scientists at the SETI Institute recently searched for technological signals from 3I/ATLAS, the third interstellar object observed in our solar system. Using the Allen Telescope Array (ATA) at the Hat Creek Radio Observatory in Northern California, the team scanned a wide range of radio frequencies for signs of extraterrestrial technology and found none, as expected based on other astronomical observations showing that the object exhibits natural comet-like composition and behavior. The...
Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty
Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty "The results from 3I/ATLAS show how realistic it is to detect a signal with the technology we have today." Sorry, true believers: It appears the interstellar comet 3I/ATLAS is indeed just a comet. Radio astronomers recently hunted for "technosignatures" coming from 3I/ATLAS, which is just the third confirmed interstellar object ever seen in our solar system.
Supermassive black holes could be the universe's biggest planet nurseries
May 31, 2026 report Supermassive black holes could be the universe's biggest planet nurseries Paul Arnold Author Lisa Lock Scientific Editor Robert Egan Associate Editor Supermassive black holes are the largest known black holes in the universe, sitting at the center of most large galaxies. They are sometimes described as cosmic monsters because they feed on surrounding gas and dust when they are active, as well as destroy anything that gets too close. But their reputation could be due for a...
JWST 'weighs' dormant black hole 10 billion light-years away
JWST 'weighs' dormant black hole 10 billion light-years away Sadie Harley Scientific Editor Robert Egan Associate Editor The most distant, nearly invisible dormant black hole has been detected and "weighed" by an international team of astronomers that includes researchers from UCL. The study, published in Science, identified a dormant black hole at the heart of a galaxy known as MRG-M0138 located over 10 billion light years away. It is the most distant dormant black hole yet detected, 15...
Black hole feeding bursts may explain JWST's Little Red Dots in early universe
June 8, 2026 report Black hole feeding bursts may explain JWST's Little Red Dots in early universe Shreejaya Karantha Author Sadie Harley Scientific Editor Robert Egan Associate Editor A new theoretical study may have cracked one of the most puzzling discoveries of the James Webb Space Telescope (JWST): Little Red Dots, spotted across the early universe. The paper, posted to the arXiv preprint server on May 29, argues that these objects could be black holes caught in rare, violent bursts of...
A giant star may have destroyed itself in one of the universe's rarest explosions
June 1, 2026 report A giant star may have destroyed itself in one of the universe's rarest explosions Shreejaya Karantha Author Sadie Harley Scientific Editor Robert Egan Associate Editor Astronomers may have discovered one of the clearest examples yet of a rare "pair-instability" supernova. It is a catastrophic explosion thought to completely destroy some of the most massive stars in the universe, leaving behind no remnant. The paper outlining the properties of this rare explosion was...
MeerKAT reveals three electron acceleration sites in one solar flare
MeerKAT reveals three electron acceleration sites in one solar flare Sadie Harley Scientific Editor Robert Egan Associate Editor Solar flares are the most explosive energy-release events in the solar corona, leading to intense particle acceleration, plasma heating and bulk plasma motions on short timescales. Core questions during solar flares remain unresolved, including how and where particle acceleration occurs, and how energized electrons propagate through coronal magnetic structures....
'Totally counterintuitive': Scientists accidentally discover magnetic fields around 7 distant planets, opening new window in the search for life
'Totally counterintuitive': Scientists accidentally discover magnetic fields around 7 distant planets, opening new window in the search for life In an astronomical first, researchers have measured the magnetic fields of seven "hot Jupiter" planets beyond our solar system — adding new clues in the search for alien life. In a first-of-its-kind discovery, astronomers claim they have directly measured the magnetic fields of multiple planets beyond our solar system — potentially providing a...
Student astronomer discovers 'Rosetta Stone' for mysterious cosmic signals
Student astronomer discovers 'Rosetta Stone' for mysterious cosmic signals Sadie Harley Scientific Editor Robert Egan Associate Editor An international team led by astronomers at the University of Sydney has uncovered the clearest evidence yet for the origin of an unusual class of cosmic signals. In doing so, they have identified a rare stellar system that is providing scientists with a natural laboratory to study extreme physics. Using CSIRO's ASKAP radio telescope, the team discovered a...