Cosmic cleaners: the scientists scouring English cathedral roofs for space dust ( www.theguardian.com )
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Our Universe appears to be expanding and cooling, having originated some 13.8 billion years ago in a hot Big Bang. However, it's plausible that what we see from inside our Universe is simply the result of being inside a black hole that formed from some parent Universe. If the black holes that form in our cosmos give birth to...