Crab Nebula Should Be Renamed Smoking Blue Jellyfish Nebula

Believe it or not , this is theCrab Nebula , one of the most famous cosmic object . Except that this image—9.8 light years across — doesn’t bet like the Crab Nebula at all , but the Electric Blue Puff Puff Jellyfish .

You do n’t recognize it because that ’s the X - ray image taken by NASA ’s Chandra ten - re Observatory . And it ’s precisely its X - ray signature that has astronomers puzzled .

For decades , the Crab Nebula — the remains of a nova that reached our planet in 1054 — has been considered the steady known high - energy source in the universe . Spinning at 30 fourth dimension per irregular , the extremely obtuse neutron star nebula core was used to calibrate tool .

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Not anymore . A squad of astrophysicists have fall upon that the nebula ’s X - ray energy has been steadily pass up “ at four unlike “ hard ” ten - shaft energies , from 12,000 to 500,000 negatron volts ( eV ) . ” Combining measurements from several X - ray observatories , they have been capable to establish a seven percent energy decrease in just two years . This think of that astronomers require to bump a novel fashion to calibrate their gear . [ NASA ]

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