In the moments before the Big Bang, our universe was a hot, dense, and extremely high-energy place. That all changed when the universe exploded 13.8 billion years ago. Rapid inflation divided a ...

"This may be reshaping how we think about the Universe, and it's exciting! There are still surprises left in cosmology, and who knows what discoveries will come next?" This research was published in ...

What is the structure of our physical reality? Physicists have long imagined space and time interweaving into “space-time”, the metaphorical fabric that underlies the cosmos. But there may be ...

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 ...

This discovery resolved the debate: the spiral nebulae were not mere clouds but entire galaxies. Hubble’s finding fundamentally altered humanity’s understanding of the cosmos, revealing a universe far ...

The rate of expansion, known as the Hubble constant (H0), has been a subject of debate for decades. While measurements from the Planck satellite, which studied the early Universe, indicated a certain ...

Kastner said tracking the velocities and locations of those molecules, which were thrown out by the dying, sun-like star that created the nebula about 4,000 years ago, revealed its 3D shape in ...

The Hubble tension just got tenser — with new measurements revealing that the universe is expanding faster than our current understanding of physics can explain. Over the past decade, cosmology ...

DURHAM, N.C. — Our cosmic neighborhood is revealing an uncomfortable and unexplainable truth: the universe seems to be breaking the speed limit set by our ... The research team acknowledges several ...

Star formation in the early universe was a vigorous process that created gigantic stars. Called Population III stars, these giants were massive, extremely luminous stars that lived short lives ...

The expansion rate of the Universe has befuddled and concerned researchers for decades. Recent measurements have only added to the mystery and heightened the alarm within the scientific community, ...

Scolnic, an associate professor of physics at Duke University, explains it as trying to build the universe's growth chart: we know what size it had at the Big Bang, but how did it get to the size ...