query: Can we observe a star collapse into a black hole?
positive_passages.docid: 21173
positive_passages.text: Black hole formation as seen by a distant observer
negative_passages.docid: 58356
negative_passages.text: Do all black holes have a singularity?
negative_passages.docid: 64252
negative_passages.text: Are the LIGO observations proof of a black hole merger, and what happened to the black holes?
negative_passages.docid: 47968
negative_passages.text: Thought Experiment - Poking a stick across a Black Hole's Event Horizon
negative_passages.docid: 46927
negative_passages.text: What happens when the black hole at a galactic core eats the galaxy?
negative_passages.docid: 91581
negative_passages.text: Is there a way to split a black hole?
negative_passages.docid: 7071
negative_passages.text: What happens when anti-matter falls into a black hole?
negative_passages.docid: 50171
negative_passages.text: Can black holes be created on a miniature scale?
negative_passages.docid: 91990
negative_passages.text: How can Quasars emit anything if they're black holes?
negative_passages.docid: 14728
negative_passages.text: Can black holes form in a finite amount of time?
negative_passages.docid: 90513
negative_passages.text: What is the "Event Horizon" of a black hole
negative_passages.docid: 19662
negative_passages.text: Can a black hole be explained by Newtonian gravity?
negative_passages.docid: 146153
negative_passages.text: Is there a way to detect the collapse in wave function of entangled particles instantaneously?
negative_passages.docid: 47165
negative_passages.text: Will the Big Rip tear black holes apart?
negative_passages.docid: 14212
negative_passages.text: Black holes in a head-on collision
negative_passages.docid: 76372
negative_passages.text: Why can a neutron star implode?
negative_passages.docid: 39399
negative_passages.text: Will free-fall object into black hole exceed speed of light $c$ before hitting black hole surface?