NASA has outlined how astronomical alignments create unique research opportunities when celestial objects pass in front of one another. These events, classified as eclipses, occultations, and transits, generate shadows that travel across space and sometimes reach Earth.
Scientists analyze changes in light patterns during these alignments to extract detailed information about distant objects. The technique allows researchers to measure the sizes and shapes of celestial bodies, detect atmospheric compositions around planets, and refine orbital calculations for asteroids and other objects.