Cosmic Expansion Rate

[Corkeyno2]

Thanks for all the help on my last post. Can someone give me accurate and precise figures on the cosmic expansion rate?

Thanks,

Corkey

[cloudsweeper]

The Universe is expanding at about 70.4 km per sec per Megaparsec.  A Megaparsec is 3.26 million light-years.

So the rate of expansion depends on distance to an object - more or less!  (Hubble's Law.)

Furthermore, very distant galaxies are receding superluminally, and this does not contradict the Special Theory of Relativity.  (The objects as such are not exceeding the Speed of Light - it is space itself that is expanding.)

(Source: P. Collier, Mathematics Of Relativity.)

Doug.

[Corkeyno2]

21 minutes ago, cloudsweeper said:

The Universe is expanding at about 70.4 km per sec per Megaparsec.  A Megaparsec is 3.26 million light-years.

So the rate of expansion depends on distance to an object - more or less!  (Hubble's Law.)

Furthermore, very distant galaxies are receding superluminally, and this does not contradict the Special Theory of Relativity.  (The objects as such are not exceeding the Speed of Light - it is space itself that is expanding.)

(Source: P. Collier, Mathematics Of Relativity.)

Doug.

cheers