Nature Futures, the short SF-heavy fiction run by the Nature journal, also has a word-count target of 850 to 950 https://www.nature.com/nature/articles?type=fu

Nature Futures, the short SF-heavy fiction run by the Nature journal, also has a word-count target of 850 to 950 https://www.nature.com/nature/articles?type=futures https://www.nature.com/nature/articles?type=futures Rules are here: https://www.nature.com/nature/for-authors/other-subs https://www.nature.com/nature/for-authors/other-subs They often have scientist-authors but also famous names like Charles Stross, Greg Egan, Ken Liu etc.