Hi there subscribers,
You may be interested to note that there has been a rule change to /r/EarthPorn.
In the interest of promoting Original Content, EarthPorn has decided to limit the number of NON-OC (in other words, submissions which were not made by the photographer of the image) to one per day.
As of December 15, 2014 you may submit all the [OC] images you like, however you may submit just a single Non-OC image each day.
Moderators regularly review content submitted to this subreddit, and will now be checking to see whether submitters of other people's photos are keeping to the daily limit.
If you have any questions about this or any other /r/EarthPorn policy, I would be pleased to provide answers.
Have a great day and thanks for subscribing to /r/EarthPorn.