Astronomy Research

The Dead Stars That Won't Fade Quietly

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June 30, 2026 • 54 views
Original source: Universe Today

The wreckage of an exploded star is meant to fade quietly, cooling over thousands of years like the embers of a fire. So astronomers were stunned when NASA's Chandra X-ray Observatory caught dozens of these supernova remnants in a nearby galaxy doing the opposite, flaring and flickering in X-rays as...

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