Pamela asked for some questions for next week's show. I think I know the shape of the universe that Pamela will cite to explain the parallel lasers zapping her up the back of her head (and I don't want to give away the surprise for anyone else) but I would be very interested to hear the evidence for that particular shape.

Also, I've heard Pamela refer to our observable universe being 3-4% of the entire universe, but try as I might I've not come across the reasoning behind this estimate.

Thirdly, I'd love to hear about co-moving distances in the expanding universe, and the hubble horizon.

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If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it... of the manifestations of the profoundest reason and the most radiant beauty, which are only accessible to our reason in their most elementary forms...
Albert Einstein

As for Dr. Gay's statements regarding the shape of the Universe, I believe she is mistaken. For my views regarding the shape of the Universe, see my thread entitled "The Shape of the Universe".

Co-moving distances are distances that would be fixed if the Unierse were not expanding. Suppose that the distance between some pair of galaxies would not be changing if the Universe were not expandinig. Actually, that distance IS increasing because the Universe is expanding. Those galaxies are said to be co-moving in terms of expansion of the Universe.