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?

[Apollo 17] THE EARTH ABOVE LM CHALLENGER: last seen by humans from the surface of another world (NASA's own copy, used and annotated, for the preparation of its final Apollo science report), 1972 ...

An unassuming rock collected from the surface of the moon over 50 years ago by the Apollo 17 astronauts Gene Cernan and Harrison Schmitt could completely alter what we thought we knew about the early ...

When Apollo 17 astronauts collected a small rock from the moon more than 50 years ago, they had no way of knowing it would still be challenging scientists' understanding of lunar history today.

"My first thought was, 'holy shmolies, that can't be right'. These are just very surprising results." Scientists have found that a sample of the moon brought to Earth in 1972 by Apollo 17 astronauts ...