Ed Schoenfeld

PRINCE OF WALES ISLAND, ALASKA (2008-12-20) Scientists are studying an unusual form of life found in some Southeast Alaska caves. It’s called moonmilk, and it’s made up of tiny organisms that chew through rock.

Researchers say it could provide a view of what life is like on other planets. And they’re focusing on Southeast because the region has so much of it.

CoastAlaska’s Ed Schoenfeld paid a visit to one of Prince of Wales Island’s many caves to see moonmilk for himself, and learn more.

Click on "more" for photos, links to other Alaska cave stories, and connections to a website on Southeast caves.


Moonmilk lines a wall near a pool in Windgate Cave.                                     Jim Baichtal/USFS

Read more about Southeast Alaska caves.


Jim Baichtal samples a thick moonmilk deposit while Penny Boston looks on. Courtesy of Penny Boston

Find out more about the Encounters program series, which will include a cave documentary.



Geologist Jim Baichtal examines a wall in Windgate Cave.