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Physics, Astronomy & Cosmology / Dark Matter, how do we know its there ?
« on: 17/03/2018 21:05:24 »
How do we know that dark matter is there ?
can we see it, detect its chemical signature, or its gravity ?
my understanding is No, but it has to be there because someone said so, please clarify this for me !
can we see it, detect its chemical signature, or its gravity ?
my understanding is No, but it has to be there because someone said so, please clarify this for me !