Amna Nawaz
Amna Nawaz
@PBSNewsHour·5.3M subscribers·62.2K videos

What it's like to walk on the ’Doomsday Glacier'

Posted

January 28, 2026

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PBS News Miles O’Brien and his team have joined a group of scientists, engineers and researchers on a voyage to reach the famous Thwaites glacier — a chunk of Antarctic ice the size of Florida that scientists fear could someday collapse and dramatically raise sea levels.

Miles paid a visit to the surface of the glacier where the team will drill through 3,000 feet of ice to reach and study the Amundsen Sea below.

Join Miles for a quick -- and frigid -- tour.

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PBS News Miles OBrienAmundsen SeaJoin MilesWatch PBS NewsPBS News HourHere's The DealLisa Desjardins SubscribePBS News

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What it's like to walk on the ’Doomsday Glacier' · Amna Nawaz · Sentinel