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

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

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

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 ...

A new study in Monthly Notices of the Royal Astronomical Society by researchers including István Szapudi of the University of ...