Planck is in Liège!
A great deal is riding on the observations that will be made by Planck, in terms of clearing up certain mysteries of the cosmos. As of this moment, we are acquainted with only 4% of the matter of the Universe, namely visible matter. But we do not know the exact nature of the 23% of the universe that is made up of dark matter, and we know next to nothing about that which constitutes 73% of the mass of the universe, dark energy! From dark matter and dark energy there came, in a violent event, the spark of the Big Bang - according to theory. The hypothesis of a “let there be light” phenomenon is part of an attempt to explain why the universe is expanding. This theory is controversial, although the discovery of CBR, cosmic microwave background radiation, by means of detectors in space, has restored its reputation to some extent. |
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© 2007 ULi�ge
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