This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
De Sitter space has a finite event horizon and an infinite particle horizon! — Preceding unsigned comment added by 193.29.76.37 (talk) 17:10, 3 September 2013 (UTC)Reply