Alun and the Moulin
Clip: Season 2026 | 2m 22sVideo has Closed Captions
Glaciologist Alun Hubbard stands at the edge of a perilous moulin on the Greenland ice sheet.
The opening moments of “Ages of Ice” take viewers to the edge of one of Greenland’s spectacular “moulins” or sinkholes in the ice where roaring waterfalls of meltwater disappear deep below. Skirting the edge, glaciologist Professor Alun Hubbard stands at the chasm and sets the stage for an extraordinary journey into the rapidly changing polar regions
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Problems playing video? | Closed Captioning Feedback
Alun and the Moulin
Clip: Season 2026 | 2m 22sVideo has Closed Captions
The opening moments of “Ages of Ice” take viewers to the edge of one of Greenland’s spectacular “moulins” or sinkholes in the ice where roaring waterfalls of meltwater disappear deep below. Skirting the edge, glaciologist Professor Alun Hubbard stands at the chasm and sets the stage for an extraordinary journey into the rapidly changing polar regions
Problems playing video? | Closed Captioning Feedback
Where to Watch Ages of Ice
Ages of Ice is available to stream on pbs.org and the PBS app.
Share Inspiring Moments From The Film
Explore the PBS Giphy collection for Ages of Ice.Providing Support for PBS.org
Learn Moreabout PBS online sponsorship♪ Well see how small this little river is right.
I've got to keep a straight face here because obviously I'm having a little bit of a jolly, but you never know.
I mean, if you don't have a look-see and make the measurements and see what's going on there.
♪ Its crazy.
Got my hard hat on.
Health ands safety.
Oh, that's quite a big boy.
Its nuts.
It is a big black hole, and it is frightening and intimidating.
The adventurous side of me that just wants to go in there and have a look and see what the hell is happening.
That's really beautiful.
I think that this is just melt water plummeting into the ice sheet.
Really see the stratification and structure in the ice.
I mean, it goes hundreds of meters down, but you can see beautifully.
And there's light ice and dark ice and dust layers.
And that's like a chronology as you go down each layer will be an annual layer.
It's very cool.
♪ Singing in the rain ♪ ♪ Just singing in the rain ♪ ♪ What a glorious feeling ♪ ♪♪ Im hap-hap-happy again ♪
Why Scientists Brave the Poles
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Preview: S2026 | 3m 59s | At -40°, your eyelashes freeze with every blink. So why do these scientists keep coming back? (3m 59s)
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Preview: S2026 | 30s | Discover epic science in the most extreme places on Earth. (30s)
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Preview: S2026 | 4m 54s | Go behind the scenes of the epic three-year journey to film “Ages of Ice.” (4m 54s)
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Preview: S2026 | 1m 27s | Discover epic science in the most extreme places on Earth. (1m 27s)
Now PlayingVideo has Closed Captions
Clip: S2026 | 2m 22s | Glaciologist Alun Hubbard stands at the edge of a perilous moulin on the Greenland ice sheet. (2m 22s)
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Clip: Ep3 | 3m 39s | Could life beyond Earth hide in ice? Dr. Birgit Sattler finds tardigrades thriving inside a glacier. (3m 39s)
Antarctica's Air-Eating Microbes
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Clip: Ep3 | 3m 54s | No sunlight, no soil to eat. In Antarctica, Dr. Ry Holland finds microbes surviving on thin air. (3m 54s)
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Clip: Ep2 | 3m 58s | Pumping seawater onto frozen ocean, Real Ice and Inuit guides test whether sea ice can grow thicker. (3m 58s)
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Clip: Ep2 | 2m 18s | Dr. Melanie Lancaster is a marine mammal specialist and advocate for quiet Arctic oceans. (2m 18s)
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Clip: Ep1 | 4m 48s | Five strangers, 220-pound sleds, 30 days on Greenland's ice, all to map what lies beneath. (4m 48s)
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Clip: Ep1 | 4m 58s | Is Greenland's ice leaking methane? Glaciologist Alun Hubbard descends into a moulin to find out. (4m 58s)
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