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Space and matter

  1. Feb 21, 2004 #1
    Just got 2 hours to kill, I noticed this at the gravity probe B website FAQ webpage.


    Can space exist by itself without matter or energy around?


    No. Experiments continue to show that there is no 'space' that stands apart from space-time itself...no arena in which matter, energy and gravity operate which is not affected by matter, energy and gravity. General relativity tells us that what we call space is just another feature of the gravitational field of the universe, so space and space-time can and do not exist apart from the matter and energy that creates the gravitational field. This is not speculation, but sound observation.

    I say:
    But since by continious field physics, fields reach out deep into outer space, this "No space where there's no field" kind of makes itself obsolete. ALL space is effected by gravity fields, including all that within supposed 'light sphere' space around the known universe.

    What sound observations are the gravity probe B guys talking about? And am I correct in thinking they mean only no space outside the universe light sphere?
  2. jcsd
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