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As seen in the photos below from https://terra.nasa.gov/about Terra is reddish, so the answer to Why is Terra reddish? is exactly what you have suspected; because it is wrapped in a thermal protection film that is reddish in color. However, the answer to a more interesting question: Why am I surprised that Terra appears reddish? would have several ...


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The category of "observation satellites" is broad, because there are many types of observation (different wavelengths that reveal different characteristics of the observed planet). Because you're referring to 'high-resolution images' I'm going to assume you want visible-light photography. Yes, this is available for many bodies, although most planets have ...


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