Some fans of the movie with some knowledge of physics have noted that if the destruction of the second Death Star actually occurred as depicted, the moon would have been rendered uninhabitable. This is known as the Endorian Holocaust. There is still a great deal of speculation on this point.
The moon's name comes for the Elven word for Middle-earth in The Lord of the Rings, probably an allusion to the similarity between the moon's tall foliage and the mallorn of Lothlórien.