The U.S. National Space Policy was released today. The Policy explicitly lists improving space-based observation as one of its goals, and directs NASA and USGS to “work together in maintaining a program for operational land remote sensing observations.”
For more details:
+ U.S. National Space Policy
+ DOI Press Release: Land Remote Sensing Under National Space Policy
Scenes from the Polar Night
Landsat satellites have begun regularly acquiring images of ice at the poles during the winter, with enlightening results.