Youtor
Dark Matter 60 Second Adventures in Astronomy 814
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=FN2d2cmi_Gk
In this video I explain just what physicists mean when they speak about dark matter and what reasons we have to think that dark matter exists. In my two follow-up videos, I speak about the alternative explanation, modified gravity, and explain why the right solution might well be a combination of both ideas. • You can support my videos by donating here: • https://www.paypal.com/cgi-bin/webscr...
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