AUTHOR=Borovsky Joseph E. TITLE=Grand Challenge for Space Physics JOURNAL=Frontiers in Astronomy and Space Sciences VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/astronomy-and-space-sciences/articles/10.3389/fspas.2022.855060 DOI=10.3389/fspas.2022.855060 ISSN=2296-987X