The SCOSTEP 14th Quadrennial Solar-Terrestrial Physics Symposium (STP14) will provide an excellent opportunity to discuss the scientific accomplishments of its current scientific program, VarSITI (Variability of the Sun and Its Terrestrial Impact), which is to end in 2018, as well as look forward to SCOSTEP’s future programs and research. The scientific sessions of STP14 will feature the three major chains of physical processes operating in the solar-terrestrial domain: (i) the mass chain in the form of plasma and particles emitted from the Sun, (ii) the electromagnetic radiation chain in the form of irradiance and flare emissions, and (iii) the intra-atmospheric chain representing energy flow from the Earth into space.