Talk:observable universe

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observable universe

The part of the universe which is observable. Mglovesfun (talk) 18:31, 22 November 2012 (UTC)

Not quite. Something can be obscured (e.g. the Great Attractor) but still practically observable in the very specific and broadly inclusive sense spelled out in the definition. Also, it's a technical term. Keep. DAVilla 20:50, 22 November 2012 (UTC)

And one whose definition has changed and will change and varies according to the technology contemplated by the user of the term. Delete. DCDuring TALK 22:14, 22 November 2012 (UTC)

No it won't - light cannot travel any faster than light speed, and we can't see things whose light has not reached us. The observable universe is a sphere with a radius of roughly 46 billion light years, with us at the centre, and (On a human timeframe) will remain thus. keep Furius (talk) 03:20, 23 November 2012 (UTC)

Keep. It means a part of a larger universe from which light has already reached us. The center of Earth is not observable but it is surely in the observable universe. — TAKASUGI Shinji (talk) 04:15, 11 December 2012 (UTC)

kept -- Liliana • 21:09, 7 June 2013 (UTC)