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Comment: Re:Hubble Ultra Deep Field (Score 2, Interesting) 66

by ModExec (#15218655) Attached to: Hubble Space Telescope's Sixteenth Anniversary
The universe itself is about 14 billion years old, and many cosmologists argue that it is at least 100 billion light years across.

Please bear with my ignorance as to physics, but isn't that impossible?

If the speed of light is supposed to be the fastest speed at which matter can travel is the speed of light, shouldn't the universe at most be 28 billion light years across?

Or is it that the threshold between this universe and that which lies beyond can travel faster than the speed of light? and if that's the case, why would it only be limited to ~4c?

/sorry to threadjack
//just curious
///hopes Hubble won't go looking for my car keys.

"Stupidity, like virtue, is its own reward" -- William E. Davidsen

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