Currently Browsing: Dark Matter

Unexpectedly Large Black Holes and Dark Matter

Unexpectedly Large Black Holes and Dark Matter
The M87 black hole blasts relativistic plumes of gas 5000 ly from the centre of the galaxy (NASA) I just spent 5 minutes trying to think up a title to this post. I knew what I wanted to say, but the subject is so “out there” I’m not sure if any title would be adequate. As it turns out,...

Did Dark Matter Reionize the Universe?

Did Dark Matter Reionize the Universe?
Immediately after the Big Bang, 13.72 billion (±120 million) years ago, the Universe was filled with energy. Nothing but energy. No protons, electrons, quarks or photons; just energy. Even the fundamental forces of nature (gravity, weak, strong, electromagnetic) were a confused mess and could...

New Exotic Particle May Explain Milky Way Gamma-Ray Phenomenon

Chandra observation of Cassiopeia A, a young supernova remnant in our galaxy - a prominant source of high-energy particles (NASA/CXC/MIT/UMass Amherst/M. D. Stage et al.) There is something strange happening in the core of the Milky Way. A space observatory measuring the energy and distribution of gamma-rays...

Is the Sun a Dark Matter Factory?

The hypothetical axion is a particle that might help scientists work out where the bulk of dark matter may be held in the Universe. So far, there has been much talk about the search for another type of hypothetical particle, the weakly interacting massive particle (WIMP), and little attention has been...

Primordial Quark Nuggets Disguised as Near Earth Asteroids?

We know that dark matter is difficult to observe… in fact, we can only indirectly observe the stuff. Gravitational lensing and WMAP “Haze” are two possible ways to observe large-scale dark matter, but what about the small-scale stuff? New research suggests that some types of dark matter...

Supermassive Black Holes Can’t Swallow Dark Matter

Apparently, black holes and dark matter don’t play well together. Broadly speaking, black holes can be considered to be a significant portion of the “missing mass” in the universe, but dark matter is distinguished as “non-baryonic matter”. It seems that this mysterious...

Dark Matter Ain’t So Dark After All: Observing The Mysterious Cosmic Glow with the Wilkinson Microwave Anisotropy Probe

The Wilkinson Microwave Anisotropy Probe (WMAP) has observed something rather strange in our galaxy. There appears to be excess microwave radiation being emitted from the space around us, with apparently no explanation. In new research, this microwave excess may be caused by “nuggets” of...

Large Hadron Collider Could Detect “Unparticles”

Understanding the mysterious dark matter in our universe is paramount to cosmologists. Dark matter and dark energy makes up the vast majority of mass in the observable universe. It influences galaxy rotation, galactic clusters and even holds the answer to our universe’s fate. So, it is unsurprising...