@CNN: American endurance athlete Colin O’Brady has become the first person to cross Antarctica solo, after 54 days trekking the barren continent https://t.co/Aqul1SsjNK https://t.co/1BJG9CFKI9

@CNN: American endurance athlete Colin O’Brady has become the first person to cross Antarctica solo, after 54 days trekking the barren continent https://t.co/Aqul1SsjNK https://t.co/1BJG9CFKI9