Cosmos may show echoes of events before Big Bang

Evidence of events that happened before the Big Bang can be seen in the glow of microwave radiation that fills the Universe, scientists have asserted. Renowned cosmologist Roger Penrose said that analysis of this cosmic microwave background showed echoes of previous Big Bang-like events. The events appear as "rings" around galaxy clusters in which the variation in the background is unusually low.

 Roger Penrose physics cosmology astronomy Big Bang universe philosophy constant nature law cycle aeon time space microwave galaxy

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