{"id":6540,"date":"2026-07-30T14:00:00","date_gmt":"2026-07-30T14:00:00","guid":{"rendered":"https:\/\/rdgundem.com\/pink-penguin-poop-on-the-danger-islands-space-photo-of-the-day-for-july-30-2026\/"},"modified":"2026-07-30T14:00:00","modified_gmt":"2026-07-30T14:00:00","slug":"pink-penguin-poop-on-the-danger-islands-space-photo-of-the-day-for-july-30-2026","status":"publish","type":"post","link":"https:\/\/rdgundem.com\/en\/pink-penguin-poop-on-the-danger-islands-space-photo-of-the-day-for-july-30-2026\/","title":{"rendered":"Pink penguin poop on the Danger Islands | Space photo of the day for July 30, 2026"},"content":{"rendered":"
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Pieces of sea ice drift near Antarctica’s Danger Islands in this image, acquired on Jan. 22, 2023, by the\u00a0Landsat 8 satellite. Several of the islands are stained pink by guano from Ad\u00e9lie penguins with a krill-rich diet. <\/span>(Image credit: NASA Earth Observatory\/Michala Garrison)<\/span><\/figcaption><\/figure>\n

The diets of penguins on Antarctica’s Danger Islands can be seen from space. At least indirectly.<\/p>\n

Using satellite images captured by the Landsat 8 spacecraft operated by NASA and the United States Geological Survey, scientists can track changes in Ad\u00e9lie penguins’ diets based on the color of their guano, or droppings.<\/p>\n

What is it?<\/h2>\n

The image above shows pinkish-orange guano staining large sections of some of the Danger Islands, Hero\u00edna Island and Beagle Island. The penguins that live there eat a diet rich in krill, small marine crustaceans that are bright pink in color due to a specific type of algae upon which they feed.<\/p>\n

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A group of Adelie penguins jumping from ice pebble to ice pebble on a beach of Paulet Island on the tip of the Antarctic Peninsula. <\/span>(Image credit: Wolfgang Kaehler\/LightRocket via Getty Images)<\/span><\/figcaption><\/figure>\n

The bright pink color of the penguins’ droppings stands out in satellite imagery, allowing researchers to monitor the birds’ populations from space. But scientists wanted a closer look, and collected drone imagery as well, as seen in the image below.<\/p>\n

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A colony of Ad\u00e9lie penguins is visible in this image captured by a drone during a research expedition to the Danger Islands. <\/span>(Image credit: Thomas Sayre-McCord\/WHOI\/MIT)<\/span><\/figcaption><\/figure>\n

Why is it incredible?<\/h2>\n

It’s pretty amazing that the diet of a specific population of birds can be monitored from 438 miles (705 kilometers)<\/u><\/a> above Earth’s surface. The imagery collected by Landsat-8 helped scientists locate where the penguin colonies might be, allowing them to find them in-person and collect guano samples. Those samples contained evidence of what the penguins were eating over time.<\/p>\n

Researchers are using those satellite images and samples to track how the penguins’ diet might be affected by changes in sea ice conditions, according to a NASA statement<\/u><\/a>. <\/p>\n

“Sea ice is such a hugely important factor in the Antarctic marine environment,” said Clemson University biologist Casey Youngflesh who led a study<\/u><\/a> comparing the penguins’ diet and sea ice conditions. “The structure of the region’s food web is changing in response.”<\/p>\n<\/article>","protected":false},"excerpt":{"rendered":"

Pieces of sea ice drift near Antarctica’s Danger Islands in this image, acquired on Jan. 22, 2023, by the\u00a0Landsat 8 satellite. Several of the islands are stained pink by guano from Ad\u00e9lie penguins with a krill-rich diet. (Image credit: NASA Earth Observatory\/Michala Garrison) The diets of penguins on Antarctica’s Danger Islands can be seen from …<\/p>","protected":false},"author":1,"featured_media":6541,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pagelayer_contact_templates":[],"_pagelayer_content":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-6540","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gundem"],"_links":{"self":[{"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/posts\/6540","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/comments?post=6540"}],"version-history":[{"count":0,"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/posts\/6540\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/media\/6541"}],"wp:attachment":[{"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/media?parent=6540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/categories?post=6540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rdgundem.com\/en\/wp-json\/wp\/v2\/tags?post=6540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}