Recent surveys hint that the rate of cosmic expansion changes dramatically over time; if that's true, then the universe could ...

Scientists are on the edge of their seats as they analyze this remarkable new map, not only to better understand the fate of ...

In this video, we explore the Big Bang theory and common misconceptions surrounding it. The Big Bang theory suggests an ...

Using a new framework, astronomers arrived at the most precise measurement of our universe’s expansion rate—but things still don’t add up, they say.

All the tools for measuring it in the local, recent Universe give fairly consistent results, around 72 to 74 kilometers per ...

The most precise measurement yet shows the Universe is expanding faster than expected, deepening the Hubble tension. The ...

Artist’s interpretation of the cosmic distance ladder — a succession of overlapping methods used to measure distances across the Universe, where each rung of the ladder provides information that can ...

New research suggests that relic black holes from before the big bang may still shape galaxies today. These black holes could ...

Cosmological expansion is widely treated as a proven fact. It is not proven. For nearly a century, cosmology has told a ...

The cosmological constant is the mathematical description of the energy that drives the ever-accelerating expansion of the ...

Black holes that formed before the Big Bang could still exist today as ‘cosmic fossils’, potentially helping to explain the ...

For years, cosmologists have argued over a simple question with an awkward answer: How fast is the universe expanding right now? The expansion rate, called the Hubble constant, ought to come out the ...