On principle we have no problem with receiving unsolicited articles from readers. However we do not accept everything we receive. Any submitted content should fit within the subject matter of this site.
Before submitting any unsolicited content, one should first consider the following rules:
First of all we will never pay anything for unsolicited content. And we definitely do not need ghost writers.
Secondly we do not publish articles which promote conspiracy theories.
Thirdly we also consider requests for sharing articles you have published elsewhere as submitting unsolicited contents.
Fourthly submitted contents should deal with the social or technological aspects of space settlement, within in the context of humanism, secularism and liberalism.