CNN International on Twitter: "30 meters below ground, in a cave system in South Africa, a team of 'underground astronauts' are working in dark, cramped conditions to discover clues about human evolution embedded in the rocks. https://amp.cnn.com/cnn/2021/06/29/africa/keneiloe-molopyane-underground-astronauts-south-africa-spc-intl/index.html "

https://mobile.twitter.com/cnni/status/1410444340816719874?s=19