The origin of lithium (Li), the third element of the periodic table, has long been shrouded in mystery. This element, ...

Part of the reason scientists have settled on the Big Bang theory as the best explanation of how the Universe came into being ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Stephen Hawking had a clear, simple answer when asked what came before the Big Bang. Hawking, who died at the age of 76 in ...