Whitepaper #145 in the Decadal Survey for Solar and Space Physics (Heliophysics) 2024-2033. Main topics: basic research. Additional topics: ground-based missions/projects; solar physics.
Total solar eclipses continue to yield key plasma parameters of the inner and middle corona, by capitalizing on the V+NIR coronal emission lines. This critical coronal space remains inaccessible to existing and to-be launched coronagraphic instrumentation in the next decade. This white paper calls for the urgent need to continue to fund TSE observations over the next solar cycle.