18 Years Later: A Supernova Lights Up the Radio ⚡ экспресс
Original: "SN 2007it on the RISE -- a radio detection of an interacting supernova 18 years post-explosion"
For the first time, astronomers have picked up radio waves from a supernova that exploded almost two decades ago.
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It exploded back in 2007. For 18 years, the shock wave traveled through space, and only now has it reached a gas cloud, making the supernova light up in radio. This is the first such detection—a chance to understand how massive stars lose material before they die.
🎯 The signal was so unexpected that it was almost dismissed as radio interference, and only a data check confirmed it: a supernova, finally speaking up after 18 years.