Assertion: pulsar's pulse | /r/CapableOf | travel through interstellar medium
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Source sentences:
text: The pulsar signal is originally emitted from the pulsar, but then the pulses travel through the interstellar medium where they get dispersed and scattered.
text: The reason for this is that the pulse has been travelling through the interstellar medium (the space between the pulsar and the Earth) and the different frequencies making up the pulse travel at different speeds through this medium.