Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

In recent years, one of the most troubling puzzles in astrophysics has grown more urgent. Scientists have realized that the ...

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

Dr. Richard Lieu, a physics professor at The University of Alabama in Huntsville (UAH), a part of The University of Alabama ...

Support: / pmsutter Follow: / paulmattsutter and / paulmattsutter What is the “cold spot” on the cosmic microwave background? Why shouldn’t it exist? What are some possible explanations for it, and ...

Data from the Atacama Cosmology Telescope (ACT) has now given researchers new detailed images of the universe's earliest ...

At the quantum level, the past and the future are indiscernible. That could have profound effects on the world we can see.

A new theory challenges the standard model of cosmology, arguing that dark matter and dark energy are not the forces behind ...

Dark matter is hypothesized to outweigh "ordinary matter" in the universe by a factor of five. That means all the stuff we ...

Cosmology is the science of studying the Universe as a whole, its origin, its composition and its properties. We are particularly interested in investigating the cosmic microwave background, the relic ...