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Daniel Little prepares a helicopter with ice-penetrating airborne radar for a 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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