query: As space expands does the density of matter remain same or increase?
positive_passages.docid: 3108
positive_passages.text: Why does space expansion not expand matter?
negative_passages.docid: 55971
negative_passages.text: Why does the (relativistic) mass of an object increase when its speed approaches that of light?
negative_passages.docid: 15980
negative_passages.text: Hydrostatic pressure - doesn't density vary with depth?
negative_passages.docid: 123571
negative_passages.text: A change in the gravitational law
negative_passages.docid: 116137
negative_passages.text: Particle speed and density
negative_passages.docid: 48899
negative_passages.text: Is it possible to create matter?
negative_passages.docid: 88019
negative_passages.text: How can mass affect spacetime?
negative_passages.docid: 136281
negative_passages.text: Is the universe expanding, or is everything in it getting smaller?
negative_passages.docid: 102370
negative_passages.text: At what speed does our universe expand?
negative_passages.docid: 119747
negative_passages.text: What is the meaning of the "expansion of space"?
negative_passages.docid: 134396
negative_passages.text: Could the acceleration of universe expansion be caused by gravity itself?
negative_passages.docid: 136212
negative_passages.text: How is the expansion of space itself explained in LQG?
negative_passages.docid: 3103
negative_passages.text: How do we know the universe is expanding, and not that its contents are shrinking?
negative_passages.docid: 60687
negative_passages.text: Solid objects inside the event horizon - can they remain "solid"?
negative_passages.docid: 50575
negative_passages.text: Collisions in space/vacuum
negative_passages.docid: 66523
negative_passages.text: Does the optical density of a medium depend upon its mass density?
negative_passages.docid: 77997
negative_passages.text: What is the reason for the shift in balance between neutrons and protons in the early universe?