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zewc
20th September 2005, 11:24 PM
Good day to all!

I want to open a discussion about:

What is dark matter?

There are a few candidates about dark matter:

1) exotic material such as WIMPS and neutrinos
2) the possibility that gravity acts differently on very large scales
3) the possibility that the space-time fabric, and possible extra dimensions are causing additional, unknown forces to baryonic matter that we havent detected yet....this is the realm of String Theory
4) something completly different...

What are your thoughts?