No dark matter?

[Wormhole199]

And where in the Quran does it say that we can detect angels by their gravity?

[Quran 55.31] We [Allah] will settle your affair, both you of weight (man and jinn)

The Jinn have weight means that we can detect their gravity and they can detect our gravity. We are in the lowest heaven, Angels are in the seventh, and Satan (Jinn) is in one heaven in-between. However all seven heavens are superimposed. We do not see them, we do not collide with them but we can detect their gravity.

3. There are 11 dimensions in M-Theory, not 7.

In all 5 versions of String Theory there are 10 dimensions: "Time" plus the usual three spatial dimensions x,y,z (4 dimensions, our heaven) plus six extra spatial dimensions making a total of ten dimensions (1 time + 9 spatial = 10 dimensions). Other competing theories like M-Theory has one extra spatial dimension (making the total 11 dimensions), however this extra spatial dimension is for the description of strings themselves (whether a string is a one-dimensional object like a thread, or whether a string is a rolled up two-dimensional membrane like a tube). In any case, in all currently competing theories, this Dark Matter is strings vibrating in six extra spatial dimensions. The missing six heavens in the Quran are the six extra spatial dimensions in modern physics.