Africa

Meet the "underground astronauts"

Published 6:37 AM ET, Thu September 10, 2015
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"Underground astronauts" Marina Elliott and Becca Peixotto work inside the cave where fossils of Homo naledi were discovered. Garrreth Bird/NATIONAL GEOGRAPHIC
The six women were able to fit through a 7-inch opening in the cave to reach the chamber where the bones were found. John Hawks/UW-Madison University/Wits University
"We have just encountered another species that perhaps thought about its own mortality, and went to great risk and effort to dispose of its dead in a deep, remote, chamber right behind us," Professor Lee Berger, the director of the project, told CNN. WITS UNIVERSITY