So much happened in the earliest moments of the universe. Elementary particles appeared, the first nuclei of hydrogen and ...

A remarkable new study challenges the findings of Nobel Prize winning research into how our universe has changed over time.

Led by doctoral student Tatsuya Kotani and Professor Tomoharu Oka from Keio University, the research team measured the ...

Korean scientists studying Type Ia supernovae have found strong evidence that the universe's expansion is not accelerating, ...

The universe's expansion may actually have started to slow rather than accelerating at an ever-increasing rate as previously ...

The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when ...

Very early dark energy (vEDE) may have accelerated the universe’s expansion just 380,000 years after the Big Bang, new ...

The Big Bang theory is supported by the observed expansion of the universe and the cosmic microwave background radiation. The universe's early moments involved a hot, dense state with the formation of ...

According to the model, dark matter may have started as particles that were hot, light, massless, and fast. As the universe cooled, these particles became heavy, slow, and dark, becoming an invisible ...

(CNN) — Astronomers have spied a monster radio jet in the distant universe that’s twice the width of the Milky Way galaxy. The ancient object formed when the universe was less than 10% of its current ...