Cosmology
Galactic Ghosts Haunt Their Killers
The title may sound dramatic, but it is very descriptive. New observations of two galaxies have shown huge streams of…
What was Before the Big Bang? An Identical, Reversed Universe
So what did exist before the Big Bang? This question would normally belong in the realms of deep philosophical thinking;…
Lumpy Neutron Stars can Generate Gravitational Waves
A new simulation of neutron stars suggest they may not be as smooth as predicted. The rapidly spinning exotic bodies…
Old Galaxies Stick Together In A Young Universe
Can appearances be deceiving? According to the United Kingdom Infra-Red Telescope (UKIRT), galaxies that appear old in our Universe's early…
Why There’s More Matter Than Antimatter in the Universe
In the first few moments of the Universe, enormous amounts of both matter and antimatter were created, and then moments…
Galaxy Zoo Results Show that the Universe Isn’t ‘Lopsided’
In July of last year, the doors of the online galaxy classification site Galaxy Zoo opened for business. The response?…
13.73 Billion Years – The Most Precise Measurement of the Age of the Universe Yet
NASA's Wilkinson Microwave Anisotropy Probe (WMAP) has taken the best measurement of the age of the Universe to date. According…
Cosmic Neutrinos, the End of the Dark Ages, and Inflation: 5 Years of WMAP Data
We now know the Universe is around 13.7 billion years old. But just a few years ago, cosmologists had no…
Podcast: How Big is the Universe?
We’re ready to complete our trilogy of discovery about the universe. We’ve learned that it has no center; rather everywhere…
Podcast: What is the Shape of the Universe?
Some of the biggest questions in the universe depend on its shape. Is it curved? Is it flat? Is it…