Sharmila Kuthunur is a Seattle-based science journalist covering astronomy, astrophysics and space exploration. Follow her on X @skuthunur.
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Every day, invisible to the human eye, thousands of enigmatic flashes of cosmic energy known as fast radio bursts erupt across the sky, releasing as much energy in milliseconds as the sun does in a day.Now, astronomers led by Kritti Sharma at the California Institute of Technology posit that such energy-packed light flashes tend to occur in massive, star-forming.
Metal-rich stars that reside in pairs in such galaxies tend to become less compact as they evolve, accelerating the transfer of mass between them and effectively initiating the timeline for a stellar merger, the researchers say. The surviving star, usually the larger of the two, is rejuvenated by burning the fuel accreted from its companion, leading to amplified magnetic fields that are hundreds of trillions of times stronger than Earth's — a magnetar.
Other questions linger about the nature of FRBs, including why a handful seem to go off multiple times a day while others flash only once.to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at:
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