Writer John Campbell first introduced the idea in a science fiction novel called Islands of Space ... time. For example, signals from inside a black hole could get carried out by a warp bubble ...

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The supermassive black ... hole,” Ms Masterson said . “This tells us that objects like white dwarfs may be able to live very close to an event horizon for a relatively extended period of time.” ...

Two black holes “locked in a death spiral,” he writes, “launched a tsunami of tortured space-time” — gravitational waves that reverberated across the cosmos and, notably in 2015 ...

Astronomers have discovered a gigantic black hole named Gaia BH3 hiding close to the earth, the third of its kind. All three were discovered by the European Space Agency’s Gaia telescope ...