Hubble images 'beating heart' of the Crab Nebula

the Crab Nebula

GREENBELT: Hubble recently captured an image of the very center of the Crab Nebula -- revealing the "beating heart" of the cosmos' most photogenic interstellar cloud.

At the center of the Crab Nebula lie the ancient remnants of an exploded star, a supernova. The so-called heart does beat. The nebula's supernova core sends out regular shockwave-like pulses of radiation and charged particles.

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