CMBR
Maybe Dark Matter is Warm, Not Cold
A new study by an international team of scientists considers the possibility that dark matter might be "warm" instead of…
Gravitational Astronomy? How Detecting Gravitational Waves Changes Everything
We’ve now had multiple detections of gravitational waves, opening up a whole new field: gravitational astronomy. We talk about the…
How Do We Know the Universe is Flat? Discovering the Topology of the Universe
Cosmologists tell us that the Universe is flat. It sure feels like 3-dimensions. What does this even mean, and how…
What Was Cosmic Inflation? The Quest to Understand the Earliest Universe
The Big Bang was a tremendous theory, but it had a few problems. In 1980 Alan Guth developed the revolutionary…
When Was the First Light in the Universe?
When was the first time that the Universe cooled down enough that light could finally move around?
Big Bang Theory: Evolution of Our Universe
The Big Bang Theory explains how the Universe has evolved over last 13.8 billion years, starting from a singularity to…
New Cosmological Theory Goes Inflation-Free
The Cosmic Microwave Background (CMB) radiation is one of the greatest discoveries of modern cosmology. Astrophysicist George Smoot once likened…
What is the Oscillating Universe Theory?
The Oscillating Universe Theory is a cosmological model that combines both the Big Bang and the Big Crunch as part…