Wishing on a star
If Stephen Smartt gets lucky, he may one day receive a message that will give the astrophysicist an advance warning that one of the most extraordinary displays known to science is about to light up the night sky. Signals relayed by automated telescope arrays and underground detectors will reveal that a star in our galactic neighbourhood has just turned supernova.
A supernova occurs when a star destroys itself so completely it can outshine the light of an entire galaxy. In the last 1,000 years, only five have been visible to the naked eye. All occurred before the invention of the telescope.
“We know about supernovae from their appearance in other galaxies and from remnants left behind in our own galaxy,” said Smartt, an astrophysicist based at Queen’s University Belfast. “But what we would love to do is see one that
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