RT @schwartz_sarahL: 50 years ago, @NASA and @USGS proposed the first @NASA_Landsat satellites. Today, the fleet is still soaring: https://t.co/XWcqzuCq7C
50 years ago, @NASA and @USGS proposed the first @NASA_Landsat satellites. Today, the fleet is still soaring: https://t.co/XWcqzuCq7C
— Sarah Schwartz (@schwartz_sarahL) January 12, 2016
from Twitter https://twitter.com/1nfinitezer0
January 19, 2016 at 03:52PM
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