  The observational evidence points to the origin of our Universe from a
big-bang explosion, the normal matter we observed can be well explained by the
particles created in the strong and weak interacting phases of the early
universe. The dark energy and dark matter, which occupy major contents of the
universe, may be created from earlier times than that of quarks. We propose
that the dark energy is an integration of the gravitational waves (GWs) in
early universe, and the dark matter is composed of x particles which are
created earlier and have much heavier mass than quarks in early universe. The x
particles may be bosons with no or little interaction with normal matter except
gravity, and they can be free particles or Bose-Einstein Condensed (BEC) matter
as the dominant matter in the galaxy clusters and galactic halos. This paper
notes as a framework of ideas need to be investigated further.
