Talk:observable universe

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. — T AKASUGI Shinji (talk) 04:15, 11 December 2012 (UTC)

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