@nasa196361: On a mission to “touch the Sun,” NASA's Parker Solar Probe became the first spacecraft to fly through the corona – the Sun’s upper atmosphere – in 2021. With every orbit bringing it closer, the probe faces brutal heat and radiation to provide humanity with unprecedented observations, visiting the only star we can study up close. #TheParkerSolarProbe #InvestigateTheSunsCorona #DetermineTheOriginOfSolarWind #StudySolarActivity #Nasa