Editing Space (section)

=== Cosmology ===
{{main|Shape of the universe}}
{{more citations needed|date=April 2020|1=section}}
Relativity theory leads to the [[cosmology|cosmological]] question of what shape the universe is, and where space came from. It appears that space was created in the [[Big Bang]], 13.8&nbsp;billion years ago<ref>
{{cite web
|title = Cosmic Detectives
|url = http://www.esa.int/Our_Activities/Space_Science/Cosmic_detectives
|publisher = The European Space Agency (ESA)
|date = 2 April 2013
|access-date = 26 April 2013
|archive-url = https://web.archive.org/web/20130405083228/http://www.esa.int/Our_Activities/Space_Science/Cosmic_detectives
|archive-date = 5 April 2013
|url-status=live
|df = dmy-all
}}
</ref> and has been expanding ever since. The overall shape of space is not known, but space is known to be expanding very rapidly due to the [[Inflation (cosmology)|cosmic inflation]].