one big question about the big bang remains: “What was it that banged?” The answer lies in his theory of cosmic inflation. “It sets up the conditions for the big bang—like a prequel ...

A groundbreaking theory suggests that dark matter—the invisible material shaping galaxies—may have formed before the Big Bang ...

BICEP2 During inflation (shown at left), a gravitational ... The prominence of the Big Bang theory skyrocketed, impelling scientists to pry the theory apart, seeking unexpected implications ...

Introducing the Warm Inflation Freeze-In Mechanism The ... A More Dynamic Universe Before the Big Bang This new theory paints a far more intricate picture of the early universe than many ...