Dark Matter and Dark Energy are terms which are increasingly becoming mainstream due to their portrayal in TV and movies. Almost everyone has heard of both Dark Matter and Energy, but very few know what exactly are they! These are extremely complex topics in theoretical physics and can easily stump anyone. Also, currently more is unknown about dark matter and Energy than is known. We know more about what it not than what it is. Plus there are numerous complex theories which tries to explain these behaviors. The Folks at In a Nutshell, decided to explain these complex topic in simple layman terms. Watch this amazing Video explaining what is Dark matter and energy and the difference between them.
Via: In a Nutshell