Hello, Venus! Solar Orbiter spacecraft makes first swing past planet

It seems to me that an extraordinary interest and effort is being taken to measure the Sun's luminosity. Is there a basis for suspicion /speculation/evidence that the Sun's increasing heat and radiation output are moving closer to Earth and triggering a warming effect along with the human generated increases in carbon dioxide? Would any such effect be detectable by past versus present measurements of Venus' atmospheric temperatures?
 

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