Along the left edge of the image, the sea ice is thinner, with gaps that reveal the dark ocean below.

沿着图片左边缘的海冰，显得更薄，从缺口处可以看到其下的深色海水。

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But the gradual melt-back of that cover exposes more of the dark ocean, land and vegetation to the direct rays of the Sun, allowing them to absorb ever more solar energy and warm up.

但是这种冰雪盖的逐渐消融使得更多的深色海洋、陆地和植被暴露在太阳的直接辐射之下，从而使它们可以吸收更多的太阳能并变暖。

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The moon rose high above a dark ocean.

月亮高悬在漆黑的海面上。

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Aerial photographs from the descent show drainage channels apparently flowing off land into what seems to be a dark ocean, possibly composed of some tarry substance.

BBC: NEWS | Science/Nature | Titan mission 'resounding success'

Palms, the bright beach, the dark ocean.

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This phenomenon, called Arctic amplification, occurs as highly reflective Arctic ice and snow melt away, allowing dark land and exposed ocean to absorb more sunlight.

CNN: Warmest Arctic temperatures for 2,000 years, says new study