This article by T Shane Topham, Gail E Bingham and Harri Latvakoski (Utah State University Research Foundation, North Logan, UT, USA), Igor Podolski and Vladimir S Sychev (Institute of Biomedical Problems of the Russian Academy of Sciences (SSCRF-IBMP RAS), Moscow, Russia) and Andre Burdakin (Russian Scientific Research Institute for Optical and Physical Measurements (VNIIOFI), Moscow, Russia) was published online by npj Microgravity on August 20, 2015.

This article by Carlos Luna and Adam H Hsieh (University of Maryland, College Park, MD, USA) and Alvin G Yew (NASA Goddard Space Flight Center, Greenbelt, MD, USA) was published online by npj Microgravity on 30 July, 2015.

This article by Jeanne M DiFrancesco (ProOrbis, LLC, Malvern, PA, USA) and John M Olson (Lakeville, MN, USA) was published online by npj Microgravity on May 27, 2015.

This article by Pavel Yazhgur, Dominique Langevin, Vincent Klein, Emmanuelle Rio and Anniina Salonen (Université Paris Sud—CNRS UMR, Orsay, France) and Hervé Caps (Université de Liège, Liège, Belgium) was published online by npj Microgravity on May 27, 2015.