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flag Hubble confirms Crab Nebula expansion via pulsar.

flag Astronomers using the Hubble Space Telescope have tracked the expansion of the Crab Nebula, a supernova remnant first observed in 1054. flag New images reveal filaments moving at speeds up to 3.4 million miles per hour, confirming the nebula is driven by a central pulsar. flag This data helps scientists understand how stellar explosions evolve over time.

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