Galaxies
Rogue black hole produces fastest radio signals outside galaxy center
Astronomers have observed a black hole tearing apart a star far from its galaxy's center, producing the fastest-changing radio signals ever recorded from such an event. Named AT 2024tvd, this tidal disruption event reveals supermassive black holes can exist and remain active in unexpected locations. The discovery, led by an international team, suggests complex, delayed energy releases from black holes.
Hubble telescope images spiral galaxy NGC 6000
The NASA/ESA Hubble Space Telescope has captured a stunning image of NGC 6000, a spiral galaxy 102 million light-years away in the constellation Scorpius. The picture highlights stars of varying ages, from blue young clusters to a golden older core, while revealing faint remnants of past supernovae. An asteroid photobombed the shot, adding streaks to the cosmic scene.
Astronomers find most distant odd radio circle
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Astronomers have discovered the most distant and powerful odd radio circle, a massive double-ringed radio structure nearly 10 billion years old. Using citizen science and the LOFAR telescope, researchers propose these cosmic rings form from galactic superwinds rather than black hole mergers. The finding challenges existing theories and highlights the role of human pattern recognition in astronomy.
Tiny nearby galaxy hosts massive black hole
A small satellite galaxy of the Milky Way, known as Segue 1, contains a supermassive black hole far larger than expected for its size. This discovery challenges long-held assumptions that such dwarf galaxies are primarily held together by dark matter. Researchers used computer models to reveal the black hole's presence at the galaxy's center.