what is space?

Answer 1

A non-entity.

Answer 2

The word SPACE encompasses many definitions.
We have Real space andan Imaginary space. Presently there is a belief by science that space is an emptiness vaccum which is devoid of mass structures. This would be called imaginary space because they imagine it as being empty vacuum.
Then there is the SPACE that Aristole and Democritus believed to be filled with an indivisible granular substance. This would be called the real space because it contains the basic substance of all mass structures which is responsible for holding masses in the shape they exist. This is what was called in short the "Aether".
However; this idea was rejected by main stream Physics beliefs.
Hence the conscensus today is that space is where there is no mass because there is no real structure of space. Therefore the belief is that space exists as an imaginary concept.
Einstein never really described the Aether in his own terms but gave a lecture indicating the various description of the Aether by scientists such as Hertz,Maxwell,Bessell,and many more .
He described the Aether as necessary for the existance of Magnetism.
He developed a mathematical imaginary system describing volumes of space are being related with time. The system involved the development and expension of space with time. He made an imginary triangle called space time. The solution of the hypothenous of this triangle is an arbritrary invariant. He develloped this theory as the invariance of space time.He called it the "General Theory of Relativity".The name was really a misnomer because there is no absolute frame of reference in the Space of the Universe by which we can make a General Relative Measurement from.
It Should have been called the Theory of Spacetime Invariance.
So space and time became related as a single function.
The space time became a four dimensional quantity of the Universe.

Later Friedman introduced a 5th dimension os space.
Presently Strings theory superceded Einstein & Friedman's dimensional description of the Universe by 11 and up to 26 dimensions .
Nevertheles its still not the end.Some Genus in the future may really find what SPACE is really all about.

Answer 3

The space something takes up is its volume. But when we refer to space, we are usually saying "the universe". That would include the volume of the universe and all the matter and energy that the universe contains.

Answer 4

The final frontier.

Answer 5

The bit in-between the hard stuff you keep bumping into.

Answer 6

space is nothing but open unexplored area of nothing.......but stars and planet that we have not ventured too

Answer 7

vast emptiness between celestial objects

Answer 8

That's what I took up in college.

Answer 9

Empty matter