冥王星的北极和南极各有一个明亮的冰区。
Pluto has bright icy areas at its North Pole and South Pole.
nasa斯必泽太空望远镜的资料，资料显示这颗明亮的恒星周围环绕着一个尘埃带，其中的物质包含水冰、有机物和岩石，跟碰撞后粉碎的彗星物质极为相似。
NASA's Spitzer Space Telescope showing a band of dust around the bright star that strongly matches the contents-such as water ice, organics, and rock-of a comet busted apart in a collision.
图中另一块明亮的区域则是北冰洋的极地冰冠。
The other bright region in the image is the polar ice cap over the Arctic Ocean.
应用推荐