Planetary smackdown

Planetary smackdown

The leading theory for the moon’s formation got in trouble recently when it was revealed that the moon and Earth are isotopic twins. Now highly precise measurements of the isotopes of an element that was still condensed at the “cut off” temperature when material started to fall back to Earth suggest a dramatic solution to the problem.

Apollo 11 moon rocks still crucial 40 years later, say WUSTL researchers

Photo by Randy KorotevLunar geochemist Randy Korotev, Ph.D., a research professor in the Department of Earth and Planetary Sciences in Arts & Sciences, said that there are still many answers to be gleaned from the moon rocks collected by the Apollo 11 astronauts on their historic moonwalk 40 years ago July 20. And he credits another WUSTL professor for the fact that the astronauts even collected the moon rocks in the first place.