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My understanding has always been that your first claim is not possible. Can you cite something to back it up and explain it?
by skj 8y ago
My understanding has always been that your first claim is not possible. Can you cite something to back it up and explain it?
- CapitalistCartr 8y agoIn the early stages of the Universe, Space-Time itself was expanding. Measuring speed of light stuff doesn't make much sense under those conditions.
- deleted 8y ago[deleted]
- baq 8y agoI always thought that while speed of light was more or less constant, space was/is expanding everywhere at the same time. For distances big enough, that's faster than c.
- magicalhippo 8y agoThe point is that the space between two objects is expanding. The expansion causes the distance to grow, and comes in addition to any relative motion between any pair of objects. So through local space each object moves slower than the speed of light, but the rate of change of the distance between them can be greater than c. More details here: http://curious.astro.cornell.edu/physics/104-the-universe/cosmology-and-the-big-bang/expansion-of-the-universe/1066-can-two-galaxies-move-away-from-each-other-faster-than-light-intermediate http://curious.astro.cornell.edu/physics/104-the-universe/co...
- jobigoud 8y agoHere: "Expanding Confusion: common misconceptions of cosmological horizons and the superluminal expansion of the Universe" https://arxiv.org/abs/astro-ph/0310808 https://arxiv.org/abs/astro-ph/0310808