In the 1990s, they recognized that
a class of exploding stars called Type Ia supernovas might fit the bill.
By the time Perlmutter began his quest, a number of researchers — among them supernova guru Robert Kirshner of Harvard — had identified that
a class of exploding stars could light a path through such difficulties.
Not exact matches
A new
class of supernova was discovered by scientists at Berkeley and may be the first example
of a new type
of exploding star.