Shreejaya Karantha
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Related Articles from SNS
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...
JWST finds a stellar bar in the early universe that breaks all rules
May 31, 2026 report JWST finds a stellar bar in the early universe that breaks all rules Shreejaya Karantha Author Sadie Harley Scientific Editor Robert Egan Associate Editor Astronomers using the James Webb Space Telescope (JWST) have discovered a stellar bar in GN20, a massive galaxy seen just 1.5 billion years after the Big Bang. The new paper was submitted to the preprint server arXiv on May 14. Cosmic funnels Stellar bars are elongated arrangements of stars that cut across the center of...
Dormant black hole revives in under three years, brightening 10-fold in nearby galaxy
June 2, 2026 report Dormant black hole revives in under three years, brightening 10-fold in nearby galaxy Shreejaya Karantha Author Sadie Harley Scientific Editor Robert Egan Associate Editor Astronomers monitoring a nearby active galaxy for six years have watched its supermassive black hole dramatically wake up, brightening by a factor of 10 across ultraviolet and X-ray wavelengths. The paper outlining the study was posted to the preprint server arXiv on May 18.
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...
Possible dark matter-deficient twins discovered in the Fornax Cluster
June 9, 2026 report Possible dark matter-deficient twins discovered in the Fornax Cluster Shreejaya Karantha Author Gaby Clark Scientific Editor Robert Egan Associate Editor Astronomers have identified a possible new example of one of the universe's strangest galaxy types: galaxies that appear to contain little or no dark matter. The newly studied pair, FCC 224 and FCC 240, on the outskirts of the Fornax Cluster, share several unusual traits with the only known pair of controversial...
Did this star eat its planets? A new study offers clues on 'chemical paradox' of a binary system
June 5, 2026 report Did this star eat its planets? A new study offers clues on 'chemical paradox' of a binary system Shreejaya Karantha Author Lisa Lock Scientific Editor Robert Egan Associate Editor Astronomers have investigated a puzzling binary star system in which two stars that may have formed together now show dramatically different chemical compositions.