In the beginning, according to Robert Jastrow, there was a big explosion. The author of God and the Astronomers (Norton; $7.95), director of NASA’s Institute for Space Studies, assembles the data proving the universe was created all at once at a given point in time, rather than having existed unaltered through eternity. The theological/metaphysical point of which is that, if the universe was created, it must have had a Creator.
In this popularized and handsomely illustrated discussion, Jastrow cites evidence concerning the after-effects of radiation which suggests that the universe was originally very hot and subsequently cooled down; the fact that the cosmos is continuously expanding; and the fact that the rate of expansion was more rapid in the past than it is at present, in obedience to the laws of entropy. All these elements suggest an original, convulsive act of creation at a remote but quite specific moment.




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