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The advent of AI has been hailed by many as a societal game-changer, as it opens a universe of possibilities to improve nearly every aspect of our lives.
In recent years, certain luminous extragalactic optical transients have been observed to last only a few days1. Their short observed duration implies a different powering mechanism from the most common luminous extragalactic transients (supernovae), whose timescale is weeks2. Some short-duration transients, most notably AT2018cow (ref. 3), show blue optical colours and bright radio and X-ray emission4. Several AT2018cow-like transients have shown hints of a long-lived embedded energy source5, such as X-ray variability6,7, prolonged ultraviolet emission8, a tentative X-ray quasiperiodic o...
A new data-handling method found this Sun-like star being consumed by a 200,000 solar mass supermassive black hole (SMBH.)
A massive burst of gamma radiation hit Earth, likely from a new black hole. There's no threat, but we can't rule out more Hulks.
Astronomers have made a discovery that could be significant. On June 3, astronomers received a brief x-ray burst that happened close to the galactic plane. The