Is Space Infinite? Examining the Big Bang Theory and the Curvature of Spacetime

It is then clarified that while there may be no curvature of space, there is still curvature of spacetime which is necessary for the big bang theory and cosmological redshift to be observed.
  • #1
arupel
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From what I read attempts to measure the curvature of space have not succeeded.
It would seem there may not be a curvature of space time.

If this is true then what may be implied is that space goes on forever.
If this is true how could the big bang theory, if it could, give a reasonable answer for this?
 
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  • #2
arupel said:
From what I read attempts to measure the curvature of space have not succeeded.
It would seem there may not be a curvature of space time.

If this is true then what may be implied is that space goes on forever.
If this is true how could the big bang theory, if it could, give a reasonable answer for this?
This is not true. Efforts to measure the curvature of spacetime have be quite successful and to within a margin of error of something less than 3% (could be better now, but that's the last I remember) it is seen to be flat.
 
  • #3
No curvature of space (a "flat" FLRW spacetime) is not the same as no curvature of spacetime (a Minkowski spacetime). The former implies a big bang and cosmological redshift (as observed). The latter does not.
 
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  • #4
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Related to Is Space Infinite? Examining the Big Bang Theory and the Curvature of Spacetime

What is the curvature of spacetime?

The curvature of spacetime is a concept in Einstein's theory of general relativity that describes how the presence of mass and energy can bend the fabric of space and time. This curvature is what causes objects to move in a curved path around massive bodies, such as the sun.

How does the curvature of spacetime affect objects?

The curvature of spacetime affects objects by altering the way they move through space and time. Objects with mass will follow a curved path around other massive objects, and time will pass at different rates depending on the strength of the curvature.

What causes the curvature of spacetime?

The curvature of spacetime is caused by the presence of mass and energy. The more massive an object is, the stronger its gravitational pull and the greater the curvature it creates in the surrounding spacetime.

Can the curvature of spacetime be observed or measured?

Yes, the curvature of spacetime can be observed and measured through various experiments and observations. For example, the bending of starlight around the sun during a solar eclipse is a direct observation of the curvature of spacetime.

Is the curvature of spacetime the same everywhere?

No, the curvature of spacetime can vary depending on the distribution of mass and energy in a given region. In areas with high concentrations of mass, the curvature will be stronger, while in areas with lower mass densities, the curvature will be weaker.

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