The speed of the outer stars of galaxies
46510
Relativity and Galaxy Rotation Speed
143889
Predicting stellar evolution and life cycle of a star
92347
How long does it take for a black hole to form for an external observer?
73729
Calculating the age of the Universe now and 30 billion years from now
101969
Proof of stars and bars formula
56005
Speed of light travel
58968
Stars and Bars Derivation
105142
What does general relativity say about the relative velocities of objects that are far away from one another?
95674
Expansion of the Universe, will light from some galaxies never reach us?
62168
Hubble time, the age of the Universe and expansion rate
6458
Structure formation: Galaxies as different entities and stars as groups
145494
How fast can the Galaxy class Starships go in reverse?
54717
Is there a model relating GW signal and luminosity of the merger / burst?
140945
Interstellar dust/matter distribution
40338
Ordinary Differential Equations used in Cosmology
73523
Shapes of galaxies
120679
Rømer's determination of the speed of light