Earth with city lights (artist's impression)
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The stars and galaxies we see in the night sky represent only one sixth of the total matter in the Universe. The remainder is a mysterious component - dark matter - that neither emits nor reflects light. So, for astronomers, the challenge of mapping the Universe has been similar to mapping a continent from just the lights of the cities.
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About the Video
| Id: | heic0701b |
| Release date: | 7 January 2007, 19:30 |
| Related releases: | heic0701 |
| Duration: | 24s |
About the Object
| Type: | • 3D Animations Videos • Cosmology Images/Videos |
