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A tangled web this supernova weaves

30 November 2018 Astronomy Now

Tangled clouds of gas from a destroyed star can be seen weaving their way through space in the Large Magellanic Cloud, the remnants of a Type 1a supernova that consumed a white dwarf in a once glorious blaze of light. Such supernovae are critical to measuring cosmic distances.

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Is the universe ringing like a crystal glass?

1 July 2015 Astronomy Now

Two physicists at the University of Southern Mississippi have discovered that the universe might not only be expanding, but also oscillating or “ringing” at the same time, something that has occurred seven times since its creation.