I would have to say that because we have multiple observatories watching the Sun from different distances and with different filters so that we can see the many colors of light, AND we can measure particles like electrons and protons, the science of "heliophysics" that ties together what the Sun does and how it affects the solar system environment. One of our newer probes, the Parker Solar Probe, is getting closer and closer to the Sun, and is providing new information on the solar wind. If you want to learn more about this mission, you could go to either or both of these websites:
http://parkersolarprobe.jhuapl.edu/ https://www.nasa.gov/cont...d/parker-solar-probe Amazingly, although not specifically designed for this, the Parker Solar Probe (some call it PSP) has given us new views of Venus!