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Detonating white dwarfs as supernovae

5 October 2016 Astronomy Now

A new mathematical model created by astrophysicists at the American Museum of Natural History details a way that dead stars called white dwarfs could detonate, producing a type of explosion that is instrumental to measuring the extreme distances in our universe. The mechanism could improve our understanding of how Type Ia supernovae form.

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Earth was grown from millimetre-sized stones

18 April 2015 Astronomy Now

Researchers can now explain how asteroids are formed. According to a new study led by Lund University in Sweden, our own planet also has its origins in the same process — a cosmic ocean of millimetre-sized particles that once orbited the young Sun.