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The Long poles of an ice-penetrating radar system are attached to a helicopter for a survey flight over the Thwaites Glacier, aboard the South Korean icebreaker ship Aaron, in the Antarctic, Jan. 24, 2026. Scientists are using radar to study internal cracks and damage to glaciers or ice flows both in Antarctica and, with the help of a NASA spacecraft, on Jupiter?s ocean moon of Europa. (Chang W. Lee/The New York Times/Fotoarena)
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