Space-Time-Matter

How would you define space, time, and energy/matter in the universe? What are the relationships/couplings among them? - Quora

Is gravity a property of matter or that of space-time? - Quora

Matter, Energy, Space, and Time

How Many States Of Matter Are There?

space-time-matter :: Behance

Itinerant Mission: 3 Constituents of the Universe: Time - Space - Matter/Energy