Pitches Wanted (Science, Science Fiction)

Clarkesworld Magazine is looking for articles of interest to readers of science fiction and fantasy. We are looking for a wide range of types of article including, but not limited to: discussions of the genre publishing business, essays on the writing process and the reading experience, scientific material that might be of use in SF stories, and so on. We pay 10¢ a word up to our word limit of 2500 words.
There are some common types of non-fiction article that we are specifically not interested in receiving queries for. These are:
Reviews: there are plenty of places that publish such material, we don’t;
Literary Criticism: again no (especially if it is really just a review);
Interviews: we do publish interviews, but they are handled separately from the non-fiction articles and are generally commissioned. Please do not pitch interviews to us.
Reprints: every article we publish must be original to Clarkesworld. There is no point in sending us material that has already been published elsewhere, especially if it is elsewhere online.