An artist's concept of the Geotail spacecraft.

This week in science

NASA ends Geotail mission and more: Understand the world through 7 images

NASA

NASA declared an end to a 30-year space mission the week of January 11–18, as researchers found cause for hope and concern in ice sheets in Greenland and the Antarctic.

Here are the week’s biggest science stories, told in 7 incredible images

Boy_Anupong/Moment/Getty Images

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