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Imagine that the visible universe and everything in it was once contained in a volume many times smaller than the size of a single atom. With a quantum theory of gravity, we may be able to trace the Big Bang expansion back to its very beginning, and understand precisely how our universe arose, presumably from nothing.

The team of scientists say their achievement lays the groundwork for quantum computing, which would involve technology much smaller and faster than is currently possible.

European researchers observe for the first time a transformation in neutrinos, evidence that they have mass. It's an important step in understanding the universe's dark matter.