'Heartbeat' of Black Holes Solves Decades-Old Mystery of Plasma Jets - ScienceAlert

Fluctuating light from a black hole, observed over 15 years, has revealed more about the way these enigmatic objects feed.

Fluctuating light from a black hole, observed over 15 years, has revealed more about the way these enigmatic objects feed. First, a structure called a corona forms around the outside of the event ho… [+4305 chars]

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