Do 'bouncing universes' have a beginning? Some cosmological models propose that the universe expands and contracts in infinite cycles, but new research finds a crucial flaw in the latest version of this theory - Science Daily

A new study by physicists highlights one way that cyclic or 'bouncing' cosmologies fall flat. 'People proposed bouncing universes to make the universe infinite into the past, but what we show is that one of the newest types of these models doesn't work,' says…

In trying to understand the nature of the cosmos, some theorists propose that the universe expands and contracts in endless cycles.Because this behavior is hypothesized to be perpetual, the universe … [+4103 chars]

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