Assertion: pulsar's beam | /r/HasProperty | detected by earth
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Source sentences:
text: Therefore, it does not stretch credulity to suppose that 2% of the potential pulsar sources in our galaxy have been identified to date, at least nowhere near as much as believing that the probability of pulsar alignment, such that their beams could be detected by earth, is 1 x 108 times more likely than would be estimated from simple geometry.
text: Rather, the focus is on the second set, namely the mathematical inconsistencies associated with pulsar beams having to align so as to be detected by the earth.