![Colin O\'Brady, of Portland, Oregon, has become the first person to traverse Antarctica alone without any assistance, trekking across the polar continent in an epic 54-day journey that was previously deemed impossible. \](http://www.ecns.cn/hd/2018/12/29/c6c39431f3de4fa4b0cfff4e77f5c5f3.jpg)
Colin O'Brady, of Portland, Oregon, has become the first person to traverse Antarctica alone without any assistance, trekking across the polar continent in an epic 54-day journey that was previously deemed impossible. "I did it!" a tearful Brady said on a call to his family gathered in Portland for the holidays, according to his wife, Jenna Besaw. (Photo/Agencies)
![Colin O\'Brady, of Portland, Oregon, has become the first person to traverse Antarctica alone without any assistance, trekking across the polar continent in an epic 54-day journey that was previously deemed impossible. \](http://www.ecns.cn/hd/2018/12/29/ac0364ec9cda4e4f8597eb8c7d9ef3dc.jpg)
Colin O'Brady, of Portland, Oregon, has become the first person to traverse Antarctica alone without any assistance, trekking across the polar continent in an epic 54-day journey that was previously deemed impossible. "I did it!" a tearful Brady said on a call to his family gathered in Portland for the holidays, according to his wife, Jenna Besaw. (Photo/Agencies)
![Colin O\'Brady, of Portland, Oregon, has become the first person to traverse Antarctica alone without any assistance, trekking across the polar continent in an epic 54-day journey that was previously deemed impossible. \](http://www.ecns.cn/hd/2018/12/29/3a0fb8aa23824ed6a2641ae6cf672a4d.jpg)
Colin O'Brady, of Portland, Oregon, has become the first person to traverse Antarctica alone without any assistance, trekking across the polar continent in an epic 54-day journey that was previously deemed impossible. "I did it!" a tearful Brady said on a call to his family gathered in Portland for the holidays, according to his wife, Jenna Besaw. (Photo/Agencies)