Quote:
Originally Posted by mswhin63
I personally feel or believe that a Planetary Nebula is a more accurate way of describing the expansion of the universe. Even though the so-called Big Bang is realistically a fairly intense expansion it will still expands in a relatively two-dimensional bubble, as an explosion can usually leave a void at the beginning point.
I have been trying to locate details on the universe expansion rate but unable to find the exact information but I recently read that's the expansion has been detected travelling faster than the speed of light. This sort of suggests that some observations of a distance Galaxy has been located expanding in the opposite direction from a central point or thereabouts.
I would like to know this could be confirmed or whether it was just a typical over exaggerated remark from somebody.
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It's pure fantasy, Malcolm, nothing more or less. The expansion of the Universe has nothing to do with the morphology or origins of a planetary nebula. The universe is not expanding as a 2D bubble, it's far more complicated than that. The expansion of the universe beyond the Hubble Horizon for our corner of the universe is occurring at a velocity faster than light, but that is relative to our position within the local universe. The light from objects beyond that horizon hasn't yet reached us because there hasn't been enough time for it to do so and as measured from our location the recessional velocity of objects out at that distance has reached c or greater. Go out to where the horizon is for us and then look back towards where we are and you'll see the same thing, except in that case we would be beyond the horizon for that position out there and you couldn't see us. Not until the universe aged sufficiently enough for the light from here to reach you and providing the expansion of the universe didn't permanently keep us beyond your horizon.