Astronomers have spotted a star exploding multiple times before — in this same white dwarf scenario, in fact. Instead of instantly resulting in a supernova, however, the pairs’ explosive death is preceded by a smaller blast caused by a cloud of some of the siphoned helium.
But that type of scenario wouldn’t produce a double — let alone triple — GRB, since only one of those blasts is a supernova proper..
So we have a mystery…
Developing… deep in space ..
