The observable universe is 93 billion light-years wide — but what’s beyond it? Astronomers have found strange patterns in the cosmic background radiation that suggest something massive and unseen ...

The question of whether the cosmos goes on forever is no longer just a late night thought experiment, it is a live research ...

Prologue: Cosmology's extraordinary new frontiers -- How far out can we see? : voyage to the edge of the known universe -- How was the universe born? : reavealing the dawn of time -- How far away will ...