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Description

Movie
Movie (1.5 MB)

AUDIO:
None.

VIDEO:
This animation shows the expansion history of the Universe. The Big Bang (a large explosion) is immediately followed by rapid expansion of the Universe (matter separating and spreading out quickly). This expansion then slows down because of the gravitational attraction of the matter in the Universe. The expansion speeds up again because of the effect of dark energy.

 

A service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC

NASA Logo, National Aeronautics and Space Administration
Goddard