Is it possible to understand the universe without understanding the largest structures that reside in it? In principle, not ...

The universe appears to be expanding at a staggering speed, much faster than expected. A recent study reinforces this observation, confirming an expansion that contradicts current ...

The research is based on Nobel Prize winner Adam Riess' discovery that the universe's expansion is accelerating due to a mysterious "dark energy" that permeates vast expanses of space between ...

While monitoring the distance to Type Ia supernovas, two separate teams found that not only is the universe expanding but that this expansion is also accelerating. Dark energy was introduced as a ...

The Vera C. Rubin Observatory is set to revolutionize our understanding of the cosmos by detecting millions of exploding stars — Type Ia supernovae — over the next decade. These brilliant explosions ...

Through the lens of the Hubble and James Webb Space Telescopes, scientists are zeroing in on the Hubble Constant, a vital ...

Since the universe is still expanding, with each passing year a galaxy is a bit more distant, and that means its redshift should become slightly larger. In other words, cosmic expansion means that ...

The expansion of the Universe is not constant. Recent measurements have shown that the rate of the Universe's expansion is increasing. The evidence for this area of physics comes from observations ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead suggesting giant voids in space are creating an illusion. When you ...

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.

Scientists challenge the existence of dark energy. They suggest the universe's accelerating expansion is due to uneven gravitational effects on time. This new theory, called the "timescape" model ...

We live in an expanding Universe, and in the late 1990s, two independent teams of astronomers discovered—much to their surprise—that the expansion is accelerating. Whatever’s driving that ...