This week in science

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

Originally Published: 
An artist's concept of the Geotail spacecraft.

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.

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