Radiation belts pose internal charging and total dose hazards to satellites. The climatological mean and extreme environments represent critical spacecraft design parameters. Glauert et al.  present a long-term, multi-Solar cycle simulation of the radiation belts. Because satellite designers must generally account for risks associated with a credible worst case Solar cycle, this kind of long simulation represents a first attempt by the scientific community to use a physical simulation to address that risk. Many challenges remain, but the paper nonetheless marks an important milestone on the road from scientific capability to end user need.
Citation: Glauert, S. A., Horne, R. B., & Meredith, N. P. . A 30‐year simulation of the outer electron radiation belt. Space Weather, 16, 1498–1522. https://doi.org/10.1029/2018SW001981
—Paul O’Brien, Editor, Space Weather