Triton’s south pole

The dark streaks in this image are nitrogen geysers erupting at Triton’s south pole.
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The dark streaks in this image are nitrogen geysers erupting at Triton’s south pole. These geysers extend 26,000 ft (8 km) above Triton’s surface, making them 140 times bigger than Yellowstone’s Old Faithful Geyser. Credit: NASA