In the late 1990s, two rival teams of astronomers discovered that the universe was expanding faster and faster. It was a ...

The solar system is moving through space over three times as fast as estimated, calling into question our best model of the ...

Evidence suggests the universe’s expansion has started to slow, not accelerate. The results imply dark energy is weakening ...

In a controversial new paper, researchers argue that the acceleration of the universe's expansion has slowed down.

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

Precise measurements from multiple radio telescopes strongly suggest that our solar system is moving far too fast for our ...

Evidence now suggests the universe’s expansion has started to slow, not speed up. The findings imply dark energy is weakening ...

The scientific study of cosmology, the field that focuses on the origins and evolution of the universe, is barely a century old. It has already been transformed more than once by new ideas, new ...

A century ago, a star in Andromeda named V1 launched a revolution in astronomy, revealing its true immensity and the origin ...