Letter policy: Letters to FuS may be in regard to a specific article or commentary placed on the site, or for general comments.  Any comments sent may be published on the Web site, unless you specify otherwise.  Letters should be limited to 300 words or less.  Please attach your name to any correspondence.  We will not be able to reply to every letter received.

Outer Space: Letters sent to the "Space blog" may be quoted within a blog post.  Please include your full name; however only first names will be used within the post unless otherwise requested.

Submissions: See the submission guidelines for detailed submission information.  Please send all materials to editor@fillingupspace.com.