why galaxies look like discs rather than spheres?
46411
Why are our planets in the solar system all on the same disc/plane/layer?
134559
Why does Kylo Ren's lightsaber look different from normal lightsabers?
2983
Shape of the universe?
64734
Distribution of Dark Matter around galaxies
48740
What is the homeomorphism between a disk and an ellipse?
53096
Is sun revolving around certain mass in space with reference to some other galaxy?
31728
Galaxy rotation curve and dark matter
74363
Why is the bokeh shaped like the aperture?
5086
Why is the derivative of a circle's area its perimeter (and similarly for spheres)?
99150
Is there evidence of dark matter in our galaxy?
145937
Differential topology versus differential geometry
34475
Spherical mirror ray diagram question
12764
$\Bbb RP^2$ as the union of a Möbius band and a disc
100799
How distorted does the Andromeda Galaxy appear to us due to the speed of light?
136573
Gravitational lensing or cloud refraction?
141562
Why do night sky appear red when it is cloudy?
71265
Density plot on the surface of sphere