@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/Aqul1SJVck https://t.co/jSnBlgXgrN

@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/Aqul1SJVck https://t.co/jSnBlgXgrN