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    4. what is dark matter?
    what is dark matter?

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    0  Views: 600 Answers: 4 Posted: 13 years ago
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      In astronomy and cosmology, dark matter is matter that neither emits nor scatters light or other electromagnetic radiation, and so cannot be directly detected via optical or radio astronomy.[1] Dark matter is believed to constitute 83% of the matter in the universe.[2] http://en.wikipedia.org/wiki/Dark_matter

      13 years ago. Rating: 4
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        The empty space between obamas ears.

        13 years ago. Rating: 4
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          what does it matter? you can't see it anyway,out of sight, out of mind, right?no!! oh well maybe it's like matter that we see as light and black matter is not vissible it   out o f  visioual spectrum,hope that help you understand the matter.

          13 years ago. Rating: 3
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            It is called anti-matter!


            It implodes ,not explodes.It is made of positrons(wrong spelling).

            12 years ago. Rating: 2
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