The isotopic ratio of sulfur-33 on the moon differs from that of Earth. Did the moon's sulfur instead come from the impactor that formed it?

Scientists open untouched Apollo 17 lunar samples from 1972 — they may hold clues about the moon's violent origins

Source: space
Source Link: https://www.space.com/astronomy/moon/scientists-open-untouched-apollo-17-lunar-samples-from-1972-they-may-hold-clues-about-the-moons-violent-origins