http://www.lightstalkers.org/galleries/contact_sheet/11970 Images by Paolo Petrignani The melt waters flowing on the surface of the great glaciers end up in roaring waterfalls engulfed by deep shafts, forming vast networks of galleries that transport the rivers all the way to the glaciers' front. In these fantastic, dangerous caves lie the reasons for some strange behaviour by the glaciers, and unexpected pages of the exploration of Planet Earth. http://www.lightstalkers.org en-us http://images.lightstalkers.org/avatars/18623/DSC_1301_small.jpg http://www.lightstalkers.org/Paolo Petrignani <img src='http://images.lightstalkers.org/images/528336/©_Paolo_Petrignani21_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528336'>view full-size image</a> http://www.lightstalkers.org/images/show/528336 Tue, 22 Apr 2008 09:06:52 +0000 http://www.lightstalkers.org/images/show/528336 <img src='http://images.lightstalkers.org/images/528336/©_Paolo_Petrignani21_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528336'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528339/Upasala14_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528339'>view full-size image</a> http://www.lightstalkers.org/images/show/528339 Tue, 22 Apr 2008 09:07:00 +0000 http://www.lightstalkers.org/images/show/528339 <img src='http://images.lightstalkers.org/images/528339/Upasala14_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528339'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528342/Torres_del_Paine_Chile_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528342'>view full-size image</a> http://www.lightstalkers.org/images/show/528342 Tue, 22 Apr 2008 09:07:07 +0000 http://www.lightstalkers.org/images/show/528342 <img src='http://images.lightstalkers.org/images/528342/Torres_del_Paine_Chile_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528342'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528345/T19_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528345'>view full-size image</a> http://www.lightstalkers.org/images/show/528345 Tue, 22 Apr 2008 09:07:15 +0000 http://www.lightstalkers.org/images/show/528345 <img src='http://images.lightstalkers.org/images/528345/T19_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528345'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528348/S25_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528348'>view full-size image</a> http://www.lightstalkers.org/images/show/528348 Tue, 22 Apr 2008 09:07:23 +0000 http://www.lightstalkers.org/images/show/528348 <img src='http://images.lightstalkers.org/images/528348/S25_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528348'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528351/©_Paolo_Petrignani21_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528351'>view full-size image</a> http://www.lightstalkers.org/images/show/528351 Tue, 22 Apr 2008 09:08:26 +0000 http://www.lightstalkers.org/images/show/528351 <img src='http://images.lightstalkers.org/images/528351/©_Paolo_Petrignani21_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528351'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528354/00_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528354'>view full-size image</a> http://www.lightstalkers.org/images/show/528354 Tue, 22 Apr 2008 09:09:26 +0000 http://www.lightstalkers.org/images/show/528354 <img src='http://images.lightstalkers.org/images/528354/00_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528354'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528357/1a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528357'>view full-size image</a> http://www.lightstalkers.org/images/show/528357 Tue, 22 Apr 2008 09:10:24 +0000 http://www.lightstalkers.org/images/show/528357 <img src='http://images.lightstalkers.org/images/528357/1a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528357'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528360/Antartica3_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528360'>view full-size image</a> http://www.lightstalkers.org/images/show/528360 Tue, 22 Apr 2008 09:11:28 +0000 http://www.lightstalkers.org/images/show/528360 <img src='http://images.lightstalkers.org/images/528360/Antartica3_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528360'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528363/bandiera_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528363'>view full-size image</a> http://www.lightstalkers.org/images/show/528363 Tue, 22 Apr 2008 09:11:46 +0000 http://www.lightstalkers.org/images/show/528363 <img src='http://images.lightstalkers.org/images/528363/bandiera_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528363'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528366/gorner_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528366'>view full-size image</a> http://www.lightstalkers.org/images/show/528366 Tue, 22 Apr 2008 09:12:04 +0000 http://www.lightstalkers.org/images/show/528366 <img src='http://images.lightstalkers.org/images/528366/gorner_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528366'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528369/King_George_Antartide29_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528369'>view full-size image</a> http://www.lightstalkers.org/images/show/528369 Tue, 22 Apr 2008 09:12:23 +0000 http://www.lightstalkers.org/images/show/528369 <img src='http://images.lightstalkers.org/images/528369/King_George_Antartide29_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528369'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528373/P.Petrignani-LaVenta_Gorner_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528373'>view full-size image</a> http://www.lightstalkers.org/images/show/528373 Tue, 22 Apr 2008 09:12:39 +0000 http://www.lightstalkers.org/images/show/528373 <img src='http://images.lightstalkers.org/images/528373/P.Petrignani-LaVenta_Gorner_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528373'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528507/P.Petrignani-LaVenta05_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528507'>view full-size image</a> http://www.lightstalkers.org/images/show/528507 Tue, 22 Apr 2008 12:04:29 +0000 http://www.lightstalkers.org/images/show/528507 <img src='http://images.lightstalkers.org/images/528507/P.Petrignani-LaVenta05_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528507'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528513/P.Petrignani-LaVenta08_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528513'>view full-size image</a> http://www.lightstalkers.org/images/show/528513 Tue, 22 Apr 2008 12:04:57 +0000 http://www.lightstalkers.org/images/show/528513 <img src='http://images.lightstalkers.org/images/528513/P.Petrignani-LaVenta08_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528513'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528519/P.Petrignani-LaVenta10_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528519'>view full-size image</a> http://www.lightstalkers.org/images/show/528519 Tue, 22 Apr 2008 12:08:20 +0000 http://www.lightstalkers.org/images/show/528519 <img src='http://images.lightstalkers.org/images/528519/P.Petrignani-LaVenta10_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528519'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528522/P.Petrignani-LaVenta15_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528522'>view full-size image</a> http://www.lightstalkers.org/images/show/528522 Tue, 22 Apr 2008 12:09:03 +0000 http://www.lightstalkers.org/images/show/528522 <img src='http://images.lightstalkers.org/images/528522/P.Petrignani-LaVenta15_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528522'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528537/P.Petrignani-LaVenta12_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528537'>view full-size image</a> http://www.lightstalkers.org/images/show/528537 Tue, 22 Apr 2008 12:12:36 +0000 http://www.lightstalkers.org/images/show/528537 <img src='http://images.lightstalkers.org/images/528537/P.Petrignani-LaVenta12_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528537'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528540/P.Petrignani-LaVenta16_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528540'>view full-size image</a> http://www.lightstalkers.org/images/show/528540 Tue, 22 Apr 2008 12:14:08 +0000 http://www.lightstalkers.org/images/show/528540 <img src='http://images.lightstalkers.org/images/528540/P.Petrignani-LaVenta16_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528540'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528546/P.Petrignani-LaVenta17_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528546'>view full-size image</a> http://www.lightstalkers.org/images/show/528546 Tue, 22 Apr 2008 12:14:38 +0000 http://www.lightstalkers.org/images/show/528546 <img src='http://images.lightstalkers.org/images/528546/P.Petrignani-LaVenta17_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528546'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528549/P.Petrignani-LaVenta18_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528549'>view full-size image</a> http://www.lightstalkers.org/images/show/528549 Tue, 22 Apr 2008 12:15:05 +0000 http://www.lightstalkers.org/images/show/528549 <img src='http://images.lightstalkers.org/images/528549/P.Petrignani-LaVenta18_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528549'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528552/P.Petrignani-LaVenta20_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528552'>view full-size image</a> http://www.lightstalkers.org/images/show/528552 Tue, 22 Apr 2008 12:15:43 +0000 http://www.lightstalkers.org/images/show/528552 <img src='http://images.lightstalkers.org/images/528552/P.Petrignani-LaVenta20_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528552'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528555/P.Petrignani-LaVenta19_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528555'>view full-size image</a> http://www.lightstalkers.org/images/show/528555 Tue, 22 Apr 2008 12:15:53 +0000 http://www.lightstalkers.org/images/show/528555 <img src='http://images.lightstalkers.org/images/528555/P.Petrignani-LaVenta19_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528555'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528561/P.Petrignani-LaVenta22_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528561'>view full-size image</a> http://www.lightstalkers.org/images/show/528561 Tue, 22 Apr 2008 12:18:09 +0000 http://www.lightstalkers.org/images/show/528561 <img src='http://images.lightstalkers.org/images/528561/P.Petrignani-LaVenta22_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528561'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528564/P.Petrignani-LaVenta22b_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528564'>view full-size image</a> http://www.lightstalkers.org/images/show/528564 Tue, 22 Apr 2008 12:18:37 +0000 http://www.lightstalkers.org/images/show/528564 <img src='http://images.lightstalkers.org/images/528564/P.Petrignani-LaVenta22b_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528564'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528567/P.Petrignani-LaVenta23_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528567'>view full-size image</a> http://www.lightstalkers.org/images/show/528567 Tue, 22 Apr 2008 12:18:59 +0000 http://www.lightstalkers.org/images/show/528567 <img src='http://images.lightstalkers.org/images/528567/P.Petrignani-LaVenta23_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528567'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528612/P.Petrignani-LaVenta24_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528612'>view full-size image</a> http://www.lightstalkers.org/images/show/528612 Tue, 22 Apr 2008 12:28:55 +0000 http://www.lightstalkers.org/images/show/528612 <img src='http://images.lightstalkers.org/images/528612/P.Petrignani-LaVenta24_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528612'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528615/P.Petrignani-LaVenta23a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528615'>view full-size image</a> http://www.lightstalkers.org/images/show/528615 Tue, 22 Apr 2008 12:29:15 +0000 http://www.lightstalkers.org/images/show/528615 <img src='http://images.lightstalkers.org/images/528615/P.Petrignani-LaVenta23a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528615'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528618/P.Petrignani-LaVenta25_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528618'>view full-size image</a> http://www.lightstalkers.org/images/show/528618 Tue, 22 Apr 2008 12:29:43 +0000 http://www.lightstalkers.org/images/show/528618 <img src='http://images.lightstalkers.org/images/528618/P.Petrignani-LaVenta25_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528618'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528621/P.Petrignani-LaVenta26_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528621'>view full-size image</a> http://www.lightstalkers.org/images/show/528621 Tue, 22 Apr 2008 12:31:57 +0000 http://www.lightstalkers.org/images/show/528621 <img src='http://images.lightstalkers.org/images/528621/P.Petrignani-LaVenta26_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528621'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528624/P.Petrignani-LaVenta30_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528624'>view full-size image</a> http://www.lightstalkers.org/images/show/528624 Tue, 22 Apr 2008 12:34:39 +0000 http://www.lightstalkers.org/images/show/528624 <img src='http://images.lightstalkers.org/images/528624/P.Petrignani-LaVenta30_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528624'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528627/P.Petrignani-LaVenta31_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528627'>view full-size image</a> http://www.lightstalkers.org/images/show/528627 Tue, 22 Apr 2008 12:35:02 +0000 http://www.lightstalkers.org/images/show/528627 <img src='http://images.lightstalkers.org/images/528627/P.Petrignani-LaVenta31_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528627'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528630/P.Petrignani-LaVenta32a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528630'>view full-size image</a> http://www.lightstalkers.org/images/show/528630 Tue, 22 Apr 2008 12:35:22 +0000 http://www.lightstalkers.org/images/show/528630 <img src='http://images.lightstalkers.org/images/528630/P.Petrignani-LaVenta32a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528630'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528633/P.Petrignani-LaVenta29_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528633'>view full-size image</a> http://www.lightstalkers.org/images/show/528633 Tue, 22 Apr 2008 12:35:40 +0000 http://www.lightstalkers.org/images/show/528633 <img src='http://images.lightstalkers.org/images/528633/P.Petrignani-LaVenta29_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528633'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528636/P.Petrignani-LaVenta27_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528636'>view full-size image</a> http://www.lightstalkers.org/images/show/528636 Tue, 22 Apr 2008 12:36:05 +0000 http://www.lightstalkers.org/images/show/528636 <img src='http://images.lightstalkers.org/images/528636/P.Petrignani-LaVenta27_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528636'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528639/P.Petrignani-LaVenta34_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528639'>view full-size image</a> http://www.lightstalkers.org/images/show/528639 Tue, 22 Apr 2008 12:36:53 +0000 http://www.lightstalkers.org/images/show/528639 <img src='http://images.lightstalkers.org/images/528639/P.Petrignani-LaVenta34_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528639'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528642/P.Petrignani-LaVenta39a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528642'>view full-size image</a> http://www.lightstalkers.org/images/show/528642 Tue, 22 Apr 2008 12:38:18 +0000 http://www.lightstalkers.org/images/show/528642 <img src='http://images.lightstalkers.org/images/528642/P.Petrignani-LaVenta39a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528642'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528645/PP2_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528645'>view full-size image</a> http://www.lightstalkers.org/images/show/528645 Tue, 22 Apr 2008 12:39:32 +0000 http://www.lightstalkers.org/images/show/528645 <img src='http://images.lightstalkers.org/images/528645/PP2_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528645'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528648/P.Petrignani-LaVenta39a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528648'>view full-size image</a> http://www.lightstalkers.org/images/show/528648 Tue, 22 Apr 2008 12:40:07 +0000 http://www.lightstalkers.org/images/show/528648 <img src='http://images.lightstalkers.org/images/528648/P.Petrignani-LaVenta39a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528648'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528651/P.Petrignani-LaVenta35_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528651'>view full-size image</a> http://www.lightstalkers.org/images/show/528651 Tue, 22 Apr 2008 12:41:19 +0000 http://www.lightstalkers.org/images/show/528651 <img src='http://images.lightstalkers.org/images/528651/P.Petrignani-LaVenta35_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528651'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528654/P.Petrignani-LaVenta41a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528654'>view full-size image</a> http://www.lightstalkers.org/images/show/528654 Tue, 22 Apr 2008 12:41:53 +0000 http://www.lightstalkers.org/images/show/528654 <img src='http://images.lightstalkers.org/images/528654/P.Petrignani-LaVenta41a_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528654'>view full-size image</a> Paolo Petrignani <img src='http://images.lightstalkers.org/images/528657/P.Petrignani-LaVenta42_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528657'>view full-size image</a> http://www.lightstalkers.org/images/show/528657 Tue, 22 Apr 2008 12:43:20 +0000 http://www.lightstalkers.org/images/show/528657 <img src='http://images.lightstalkers.org/images/528657/P.Petrignani-LaVenta42_small.jpg' /><br /><br /><a href='http://www.lightstalkers.org/images/show/528657'>view full-size image</a> Paolo Petrignani