The mysteries surrounding the origins of the universe have long intrigued scientists and philosophers alike. New research, ...

A new theory for the origins of dark matter suggests that fast-moving, neutrino-like dark particles could have decoupled from ...

Before there was light, there was cosmic inflation. Before life, planet Earth, the first galaxies — and even before the violent explosion of hot dense primordial stuff scientists traditionally have ...

Cosmic inflation tries to describe one brief but crucial phase in the Big Bang that launched the universe onto its expansion course. Many textbooks and science educators have attempted to describe the ...

Two fresh ideas are giving scientists new ways to think about how the universe’s hidden mass came to be. Together, they paint a richer picture of dark matter’s origins and how we might still discover ...

The early universe experienced a phase of rapid expansion, known as inflation. For decades, cosmologists assumed that this expansion was powered by a new entity in the universe, known as the inflaton.

In the early universe, moments after the Big Bang and cosmic inflation, clusters of exotic, massive particles could have ...

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...