Cosmology
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…
Astronomy Cast Ep. 397: Why is There Something and Not Nothing?
One of the biggest, most basic questions you can ask is: “why is there something and not nothing?” The reality…
Who Was Democritus?
As the philosopher Nietzsche famously said "He who would learn to fly one day must first learn to stand and…
Who was Stephen Hawking?
With countless contributions to the sciences, Stephen Hawking is one of the greatest living minds, and one of the greatest…
Cosmologist Thinks a Strange Signal May Be Evidence of a Parallel Universe
In the beginning, there was chaos. Hot, dense, and packed with energetic particles, the early Universe was a turbulent, bustling place.…
Will the Big Bang Go Backwards?
Will the Big Bang expansion eventually come to a stop over the course of infinite time and ultimately pull everything…
NGC 2419: Wayward Globular or the Milky Way’s Own?
Turns out, we may not know our extragalactic neighbors as well as we thought. One of the promises held forth…
Is There a Mirror Universe?
Could there be a mirror universe, where everything is backwards - and everybody has goatees? How badly do you need…
How Can Space Travel Faster Than The Speed Of Light?
Cosmologists are intellectual time travelers. Looking back over billions of years, these scientists are able to trace the evolution of…
It Turns Out Primordial Gravitational Waves Weren’t Found
Last March, international researchers from the Background Imaging of Cosmic Extragalactic Polarization (BICEP2) telescope at the South Pole claimed that…