What is dark matter? Also what is dark energy?
52112
Dark matter and dark energy references
112452
Why does dark energy produce positive space-time curvature?
35939
Is fire matter or energy?
45669
What is behind the definitions of work and energy?
156984
Is cold dark matter made of Higgs bosons?
115333
How exactly and WHY does matter affect space-time?
117653
How does light travel?
40148
Does light have mass?
137061
Understanding the different kinds of mass in gravity
71843
What is the meaning of Hubble tension?
97505
Singularity - exactly what is it?
80329
How is dark energy consistent with conservation of mass and energy?
119336
Zero energy universe
54636
Dark Energy / Accelerating universe: naive question
48899
Is it possible to create matter?
130760
What are matter waves made of and what is their speed?
82732
Why people think dark matter as a massive particle? Couldn't it be gravitational waves?