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Name: Robin D.
Status: N/A
Age: N/A
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Date: 2000-2001


Question:
Could "dark matter/dark enery" be new stars that have formed and their light has not reached us yet? Say a new star has formed that is 1000 light-years away...we will not be seeing its light for 1000 years.


Replies:
Robin,

Dark matter is not new stars we have not seen. Based on current theories, nothing can travel faster than the speed of light. If we have not yet received light from the star, we would not see any of its other effects either.

Dark matter could be material that does not interact with light. It does not block light. It does not emit light. The only thing it seems to interact with is gravity. Provided our theories about gravity and motion within the universe are correct, the universe needs more mass than we know about. One possibility is there is a great deal of matter in the univeres that we cannot detect. One possibility is that our theories are incorrect at very large distances. All of science is theories that try to explain the reality we measure. Dark matter is such a theory. Gravity is such a theory. More experiments are done to try to determine which theories are correct and which need to be adjusted to fit reality.

Dr. Ken Mellendorf
Illinois Central College



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