What's Dark Matter and Dark Energy

What's Dark Matter and Dark Energy:

Our Universe is composed of 73% Dark Energy and 23% Dark Matter and 4% of Byronic Matter. The concept of Dark Matter was first used by Fritz in 1933. [1]
Dark Matter Is the the type of matter that emi...ts or reflects minimal to no light; thus, this it cannot be seen directly by a telescope. [2] This mysterious matter is composed mainly by Heavy Particles, Weakly Interacting Massive Particles, also known as WIMPs. These Heavy Particles interact through the weak force and gravity. [3]
Also Massive Compact Halo Objects (MACHOS) are believe to "add" volume to Dark Matter, for instance, brown dwarfs, "…are sub-stellar objects which are too low in mass to sustain hydrogen-1 fusion reactions in their cores, which is characteristic of stars on the main sequence. Brown dwarfs have fully convective surfaces and interiors, with no chemical differentiation by depth." [4]

Conversely, Dark Energy is the term used to explain the acceleration of the expansion of the Universe, and it accounts a roughly approximated of 73% of our Universe. "Some argue the only indication for the existence of dark energy is observations of distance measurements and associated redshifts. Cosmic microwave background anisotropies and baryon acoustic oscillations are only observations that redshifts are larger than expected from a 'dusty' Friedmann–Lemaître universe and the local measured Hubble constant. [5]

1.http://en.wikipedia.org/wiki/Universe
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