In a first, astronomers watch a black hole's corona disappe…
In a first, astronomers watch a black hole's corona disappear, then reappear : [https://phys.org/news/2020-07-astronomers-black-hole-corona-reappear.html] : <https://youtu.be/96O4XjO_H84>
In a first, astronomers watch a black hole's corona disappear, then reappear : [https://phys.org/news/2020-07-astronomers-black-hole-corona-reappear.html] : <https://youtu.be/96O4XjO_H84>