Within trillionths of a second after the Big Bang, they have reasoned, the primordial explosion - many billions of degrees hot - must have created a universe that contained equal quantities of matter and antimatter.
it became billions of degrees hot
( z1 become :ARG1 ( z2 it ) :ARG2 ( z3 hot :ARG1 z2 :quant ( z4 multiple :op ( z5 temperature-quantity :quant 1000000000 :unit ( z6 degree ) ) ) ) )