Do ‘bouncing universes’ have a beginning?

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…

CT scanner captures entire woolly mammoth tusk

Researchers successfully captured CT images of an entire woolly mammoth tusk. Researchers were able to do a full scan of the tusk in its entirety — or in toto — using a newer clinical CT scanner. The new technology allows for large-scale imaging with…