Hunt on for Dark Matter
by Robert Beilby
What is dark matter?
In space where there is nothing visible there is a source of gravity. Scientists call it dark matter. It is the theory that there is matter there it is just invisible and nearly undetectable.
How much is there?
A billion sub-atomic particles of dark matter pass through your
outstretched hand every second, in fact 95% of the universe is dark
matter/energy. Also as the universe expands so does dark matter.
How can you find it?
In Canada the biggest dark matter detector is currently being built in
search of the Anti Social WIMPs (weakly interacting massive particles)
Dark Matter. DEAP ( Dark matter Experiment using Argon Pulse-shape
discrimination) is on the hunt for these WIMPs using the nuclei of argon
atoms to collide into suspected dark matter. On the other side of the
world , France and Switzerland, they are using the LHC (Large Hadron
Collider) in CERN ( Counseil Européen pour la Recherche Nucléarire) to do the same thing as DEAP. However, there is another technique used to detect dark matter: photons. If you smash photons into an area suspected to contain dark matter it will glow if there is any there!