In 1987, on the night of the 23rd of February,
Scientists were privileged to witness something extraordinary.
A supernova had come to play out its final role,
As a neutron star or as a black hole.
A white dwarf follows the trend
Of collecting mass from his friend.
Reaching a mass forty per cent more than our Sun,
It explodes as a supernova of type one.
Large stars containing extremely big mass
Eventually become a supernova of the type two class.
But before reaching this last stage
They fuse from hydrogen to the “iron age”…