NASA is tracking two explorers across Antarctica to prepare humans for Mars

NASA is tracking two explorers on a 2,268-mile (3,650 kilometers) journey across Antarctica to learn more about humanity’s ability to survive on Mars

British explorers Justin Packshaw and Jamie Facer Childs are on the 32nd day of an 80-day trek across the southernmost continent as part of the Chasing the Light mission — a grueling expedition that could give space agencies a better understanding of the psychological and physical impact of other worlds on the human body and mind.