| 41. | A never-before-seen ring of X-rays has been discovered surrounding the heart of the massive crab nebula in space, NASA announced Tuesday.
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| 42. | Some say that the southward migration began on May 24, 1064 CE, after the Crab Nebula events from May to July 1054.
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| 43. | While his explanation was initially considered implausible, the discovery of a pulsar in the Crab Nebula led to the theory's universal acceptance.
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| 44. | It would not be so popular were men actually from another celestial entity _ say, that silly pulsar within the Crab nebula.
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| 45. | In 1965, Antony Hewish and Samuel Okoye discovered " an unusual source of high radio brightness temperature in the Crab Nebula ".
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| 46. | Gamma radiation in the TeV range emanating from the Crab Nebula was first detected in 1989 by the Whipple Observatory at Mt.
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| 47. | In late July, Saturn will appear to float in front of the Crab nebula, a cloud of glowing gas in the constellation Taurus.
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| 48. | Using his newly built spectrograph, Mayall was the first to determine the radial velocities of many knots of gas in the Crab Nebula.
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| 49. | Theoretical models of supernova explosions suggest that the star that exploded to produce the Crab Nebula must have had a mass of between.
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| 50. | In 1971 he and his colleagues discovered pulsed gamma rays with energies greater than 200 MeV from the pulsar in the Crab Nebula.
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