query: Is there any evidence of black holes existing?
positive_passages.docid: 97847
positive_passages.text: Direct observations of a black hole?
negative_passages.docid: 88969
negative_passages.text: Are black hole regarded as baryonic matter in cosmology?
negative_passages.docid: 140798
negative_passages.text: Is there absolute proof for gravitational waves?
negative_passages.docid: 135375
negative_passages.text: A Hollow Black Hole
negative_passages.docid: 42343
negative_passages.text: Is spacetime all that exists?
negative_passages.docid: 68288
negative_passages.text: Anti-Matter Black Holes
negative_passages.docid: 69105
negative_passages.text: Are electrons miniature black holes?
negative_passages.docid: 108623
negative_passages.text: Is there a black hole in the centre of the Milky Way?
negative_passages.docid: 40731
negative_passages.text: Can a black hole absorb photons whose wavelengths are greater than the BH horizon size?
negative_passages.docid: 50171
negative_passages.text: Can black holes be created on a miniature scale?
negative_passages.docid: 17066
negative_passages.text: Light emission from the vicinity of a black hole
negative_passages.docid: 580
negative_passages.text: Why is a black hole black?
negative_passages.docid: 23139
negative_passages.text: Am I seeing a particle orbiting a Morris-Thorne Wormhole?
negative_passages.docid: 18038
negative_passages.text: Can we detect gravitational waves generated from inside the event horizon of a black hole?
negative_passages.docid: 48306
negative_passages.text: What evidence is there of the existence of quarks?
negative_passages.docid: 86456
negative_passages.text: Could the universe's antimatter be hiding in black holes?
negative_passages.docid: 17296
negative_passages.text: Do we have theories about why gravity exists/how it works?