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by mturmon 5162 days ago
This is insightful and well-informed.

There are also a lot of Earth-orbiting instruments that help us understand weather and climate (too many to list; way beyond taking Landsat-style pictures), the recent lunar missions (LRO, GRAIL), several solar missions (Stereo, SDO), and cosmology/astrophysics (Planck, Spitzer, Chandra).