query: Is the observable universe growing or shrinking?
positive_passages.docid: 152130
positive_passages.text: Maximum size of the observable universe?
negative_passages.docid: 10377
negative_passages.text: Is redshift the only way by which we can tell that space is expanding?
negative_passages.docid: 82440
negative_passages.text: As the universe ages, will we see more stars or less?
negative_passages.docid: 87167
negative_passages.text: Do cosmological and Doppler redshift produce different patterns?
negative_passages.docid: 101201
negative_passages.text: How do we know the size of the universe?
negative_passages.docid: 3644
negative_passages.text: Symmetrical twin paradox in a closed universe
negative_passages.docid: 65566
negative_passages.text: Estimating age of the universe by Hubble's law?
negative_passages.docid: 683
negative_passages.text: Do new universes form on the other side of black holes?
negative_passages.docid: 131360
negative_passages.text: Friedmann vacuum solution linear rather than exponential?
negative_passages.docid: 96564
negative_passages.text: Is it valid to apply Einstein's Relativity to scenarios involving expansion of space?
negative_passages.docid: 106211
negative_passages.text: Is the universe isomorphic to a universal turing machine?
negative_passages.docid: 69667
negative_passages.text: What is the equation for the scale factor of the universe, a(t), for the best fit of data to the $\Lambda CDM$ Model of Cosmology?
negative_passages.docid: 125620
negative_passages.text: How do we know for certain that space is expanding?
negative_passages.docid: 50415
negative_passages.text: Value of the Hubble parameter over time
negative_passages.docid: 116989
negative_passages.text: Has the universe we live in started as a black hole that is imploding?
negative_passages.docid: 110351
negative_passages.text: Is the universe really "fine-tuned for life"?
negative_passages.docid: 119336
negative_passages.text: Zero energy universe