"The new model can account for both structure formation and stability, and the key observational properties of the expansion ...

Physicist Richard Lieu first explored the idea that gravity could exist without mass—now he’s got a new cosmological model ...

A new idea about cosmic expansion has emerged that might remove the need for dark matter and dark energy altogether.

Gravity pulls us to earth, a lesson you learn viscerally the first time you fall. Isaac Newton described gravity as a ...

Astronomers have long been puzzled by two strange phenomena at the heart of our galaxy. First, the gas in the central ...

Scientists hypothesized that there must be some unknown “dark energy” in the universe that propels the universe ever outward, but as theoretical cosmologist Katie Mack states: “We can’t ...

An extremely bold hypothesis proposes transient temporal singularities remove the need for dark matter and dark energy.

Despite decades of searching for this signal, astronomers have yet to find it. The problem is that our Earth is too noisy, making it nearly impossible to capture this whisper. The solution is to go to ...

A groundbreaking theory suggests that dark matter—the invisible material shaping galaxies—may have formed before the Big Bang ...

Astronomers may have uncovered a hidden population of galaxies that could rewrite what we know about the universe's evolution ...