[copycat]

There is one difference: Dark Matter is natural, whereas God is supernatural.

How do you know?

[PatrickHenry]

How do you know [Dark Matter is natural, whereas God is supernatural]?

First, no theory about dark matter proposes a supernatural nature (in other words, no one suggests that dark matter is outside of and unaffected by the laws of nature). The only statements about dark matter are that it is mass which is difficult to detect. Second, no one suggests that we should worship dark matter.